November 2009 I
© 2009 Actel Corporation
IGLOO Low-Power Flash FPGAs
with Flash*Freeze Technology
Features and Benefits
Low Power
1.2 V to 1.5 V Core Voltage Support for Low Power
Supports Single-Voltage System Operation
5 µW Power Consumption in Flash*Freeze Mode
Low-Power Active FPGA Operation
Flash*Freeze Technology Enables Ultra-Low Power
Consumption while Maintaining FPGA Content
Easy Entry to / Exit from Ultra-Low-Power Flash*Freeze Mode
High Capacity
15 k to 1 Million System Gates
Up to 144 kbits of True Dual-Port SRAM
Up to 300 User I/Os
Reprogrammable Flash Technology
130-nm, 7-Layer Metal, Flash-Based CMOS Process
Live-at-Power-Up (LAPU) Level 0 Support
Single-Chip Solution
Retains Programmed Design When Powered Off
250 MHz (1.5 V systems) and 160 MHz (1.2 V systems) System
Performance
In-System Programming (ISP) and Security
Secure ISP Using On-Chip 128-Bit Advanced Encryption
Standard (AES) Decryption (except ARM®-enabled IGLOO®
devices) via JTAG (IEEE 1532–compliant)
•FlashLock
® to Secure FPGA Contents
High-Performance Routing Hierarchy
Segmented, Hierarchical Routing and Clock Structure
Advanced I/O
700 Mbps DDR, LVDS-Capable I/Os (AGL250 and above)
1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V Mixed-Voltage Operation
Bank-Selectable I/O Voltages—up to 4 Banks per Chip
Single-Ended I/O Standards: LVTTL, LVCMOS
3.3 V / 2.5 V / 1.8 V / 1.5 V / 1.2 V, 3.3 V PCI / 3.3 V PCI-X, and
LVCMOS 2.5 V / 5.0 V Input
Differential I/O Standards: LVPECL, LVDS, B-LVDS, and M-
LVDS (AGL250 and above)
Wide Range Power Supply Voltage Support per JESD8-B,
Allowing I/Os to Operate from 2.7 V to 3.6 V
Wide Range Power Supply Voltage Support per JESD8-12,
Allowing I/Os to Operate from 1.14 V to 1.575 V
I/O Registers on Input, Output, and Enable Paths
Hot-Swappable and Cold-Sparing I/Os
Programmable Output Slew Rate and Drive Strength
Weak Pull-Up/-Down
IEEE 1149.1 (JTAG) Boundary Scan Test
Pin-Compatible Packages across the IGLOO Family
Clock Conditioning Circuit (CCC) and PLL
Six CCC Blocks, One with an Integrated PLL
Configurable Phase Shift, Multiply/Divide, Delay
Capabilities, and External Feedback
Wide Input Frequency Range (1.5 MHz up to 250 MHz)
Embedded Memory
1 kbit of FlashROM User Nonvolatile Memory
SRAMs and FIFOs with Variable-Aspect-Ratio 4,608-Bit RAM
Blocks (×1, ×2, ×4, ×9, and ×18 organizations)
True Dual-Port SRAM (except ×18)
ARM Processor Support in IGLOO FPGAs
M1 IGLOO Devices—Cortex™-M1 Soft Processor Available
with or without Debug
®
AGL015 and AGL030 devices do not support this feature. Supported only by AGL015 and AGL030 devices.
IGLOO Product Family
IGLOO Devices AGL015 AGL030 AGL060 AGL125 AGL250 AGL400 AGL600 AGL1000
ARM-Enabled IGLOO Devices M1AGL250 M1AGL600 M1AGL1000
System Gates 15 k 30 k 60 k 125 k 250 k 400 k 600 k 1 M
Typical Equivalent Macrocells 128 256 512 1,024 2,048
VersaTiles (D-flip-flops) 384 768 1,536 3,072 6,144 9,216 13,824 24,576
Flash*Freeze Mode (typical, µW) 5 5 10 16 24 32 36 53
RAM kbits (1,024 bits) 18 36 36 54 108 144
4,608-Bit Blocks ––488122432
FlashROM Bits 1 k 1 k 1 k 1 k 1 k 1 k 1 k 1 k
Secure (AES) ISP 1 Yes Yes Yes Yes Yes Yes
Integrated PLL in CCCs 2 ––111111
VersaNet Globals 36 6 18 18 18 18 18 18
I/O Banks 22224444
Maximum User I/Os 49 81 96 133 143 194 235 300
Package Pins
UC/CS
QFN
VQFP
FBGA
QN68
UC81/CS81
QN48, QN68,
QN132
VQ100
CS121
QN132
VQ100
FG144 5
CS196
QN132
VQ100
FG144
CS196 4
QN132 4,5
VQ100
FG144
CS196
FG144,
FG256,
FG484
CS281
FG144,
FG256,
FG484
CS281
FG144,
FG256,
FG484
Notes:
1. AES is not available for ARM-enabled IGLOO devices.
2. AGL060 in CS121 does not support the PLL.
3. Six chip (main) and twelve quadrant global networks are available for AGL060 and above.
4. The M1AGL250 device does not support this package.
5. Device/package support TBD
6. The IGLOOe handbook provides information on higher densities and additional features.
v2.0
IGLOO Low-Power Flash FPGAs
II v2.0
I/Os Per Package1
IGLOO Devices AGL015 AGL030 AGL060 AGL125 AGL250 AGL400 AGL600 AGL1000
ARM-Enabled
IGLOO Devices M1AGL250 3M1AGL400 M1AGL600 M1AGL1000
Package
I/O Type
Single-Ended I/O
Single-Ended I/O
Single-Ended I/O
Single-Ended I/O
Single-Ended I/O 2
Differential I/O Pairs
Single-Ended I/O 2
Differential I/O Pairs
Single-Ended I/O 2
Differential I/O Pairs
Single-Ended I/O 2
Differential I/O Pairs
QN48 34 ––––
QN68 49 49 ––––
UC81 66 ––––
CS81 66 ––––
CS121 96 ––––
VQ100 77 71 71 68 13 ––––
QN132 81808487
719 7––––
CS196 133 143 35 143 35
FG144 ––96
797 97 24 97 25 97 25 97 25
FG256 178 38 177 43 177 44
CS281 215 53 215 53
FG484 194 38 235 60 300 74
Notes:
1. When considering migrating your design to a lower- or higher-density device, refer to the IGLOO Low-Power Flash FPGAs
handbook to ensure compliance with design and board migration requirements.
2. Each used differential I/O pair reduces the number of single-ended I/Os available by two.
3. The M1AGL250 device does not support QN132 or CS196 packages. Refer to the IGLOO Low-Power Flash FPGAs
handbook for position assignments of the 15 LVPECL pairs.
4. FG256 and FG484 are footprint-compatible packages.
5. When the Flash*Freeze pin is used to directly enable Flash*Freeze mode and not used as a regular I/O, the number of
single-ended user I/Os available is reduced by one.
6. "G" indicates RoHS-compliant packages. Refer to "IGLOO Ordering Information" on page III for the location of the
"G" in the part number.
7. Device/package support TBD.
IGLOO FPGAs Package Sizes Dimensions
Package UC81 CS81 CS121 QN68 QN132 CS196 CS281 FG144 VQ100 FG256 FG484
Length × Width
(mm\mm)
4 × 4 5 × 5 6 × 6 8 × 8 8 × 8 8 × 8 10 × 10 13 × 13 14 × 14 17 × 17 23 × 23
Nominal Area
(mm2)
16 25 36 64 64 64 100 169 196 289 529
Pitch (mm) 0.4 0.5 0.5 0.4 0.5 0.5 0.5 1.0 0.5 1.0 1.0
Height (mm) 0.80 0.80 0.99 0.90 0.75 1.20 1.05 1.45 1.00 1.60 2.23
IGLOO Low-Power Flash FPGAs
v2.0 III
IGLOO Ordering Information
Note: Marking Information: IGLOO V2 devices do not have V2 marking, but IGLOO V5 devices are marked accordingly.
Supply Voltage
2 = 1.2 V to 1.5 V
5 = 1.5 V only
AGL1000 V2 FG
_
Part Number
IGLOO Devices
Package Type
VQ =Very Thin Quad Flat Pack (0.5 mm pitch)
QN =Quad Flat Pack No Leads (0.4 mm and 0.5 mm pitch)
144 I
Package Lead Count
G
Lead-Free Packaging
Application (Temperature Range)
Blank = Commercial (0°C to +70°C Ambient Temperature)
I= Industrial (40°C to +85°C Ambient Temperature)
Blank = Standard Packaging
G= RoHS-Compliant Packaging (some packages also halogen-free)
PP = Pre-Production
ES=Engineering Sample (Room Temperature Only)
30,000 System Gates
AGL030 =
15,000 System Gates
AGL015 =
60,000 System Gates
AGL060=
125,000 System Gates
AGL125 =
250,000 System Gates
AGL250 =
600,000 System Gates
AGL600 =
400,000 System Gates
AGL400 =
1,000,000 System Gates
AGL1000 =
CS =Chip Scale Package (0.4 mm and 0.5 mm pitches)
UC=Micro Chip Scale Package (0.4 mm pitch)
FG=Fine Pitch Ball Grid Array (1.0 mm pitch)
IGLOO Devices with Cortex-M1
250,000 System Gates
M1AGL250 =
600,000 System Gates
M1AGL600 =
1,000,000 System Gates
M1AGL1000=
IGLOO Low-Power Flash FPGAs
IV v2.0
Temperature Grade Offerings
References made to IGLOO devices also apply to ARM-enabled IGLOOe devices. The ARM-enabled part numbers start with
M1 (Cortex-M1).
Contact your local Actel representative for device availability:
http://www.actel.com/contact/default.aspx.
AGL015 and AGL030
The AGL015 and AGL030 are architecturally compatible; there are no RAM or PLL features.
Package
AGL015 AGL030 AGL060 AGL125 AGL250 AGL400 AGL600 AGL1000
M1AGL250 4M1AGL600 M1AGL1000
QN48 –C, I–
QN68 C, I
UC81 –C, I–
CS81 –C, I–
CS121 ––C, I
VQ100 C, I C, I C, I C, I
QN132 –C, IC, I
3C, I C, I 3––
CS196 –––C, IC, IC, I
FG144 ––C, I
3C, I C, I C, I C, I C, I
FG256 –––– C, IC, IC, I
CS281 –––– C, IC, I
FG484 –––– C, IC, IC, I
Notes:
1. C = Commercial temperature range: 0°C to 70°C ambient temperature.
2. I = Industrial temperature range: –40°C to 85°C ambient temperature.
3. Device/package support TBD.
4. The M1AGL250 device does not support FG256 or QN132 packages.
v2.0 1-1
1 – IGLOO Device Family Overview
General Description
The IGLOO family of flash FPGAs, based on a 130-nm flash process, offers the lowest power FPGA, a
single-chip solution, small footprint packages, reprogrammability, and an abundance of advanced
features.
The Flash*Freeze technology used in IGLOO devices enables entering and exiting an ultra-low-
power mode that consumes as little as 5 µW while retaining SRAM and register data. Flash*Freeze
technology simplifies power management through I/O and clock management with rapid recovery
to operation mode.
The Low Power Active capability (static idle) allows for ultra-low-power consumption (from 12 µW)
while the IGLOO device is completely functional in the system. This allows the IGLOO device to
control system power management based on external inputs (e.g., scanning for keyboard stimulus)
while consuming minimal power.
Nonvolatile flash technology gives IGLOO devices the advantage of being a secure, low power,
single-chip solution that is live at power-up (LAPU). IGLOO is reprogrammable and offers time-to-
market benefits at an ASIC-level unit cost.
These features enable designers to create high-density systems using existing ASIC or FPGA design
flows and tools.
IGLOO devices offer 1 kbit of on-chip, reprogrammable, nonvolatile FlashROM storage as well as
clock conditioning circuitry based on an integrated phase-locked loop (PLL). The AGL015 and
AGL030 devices have no PLL or RAM support. IGLOO devices have up to 1 million system gates,
supported with up to 144 kbits of true dual-port SRAM and up to 300 user I/Os.
M1 IGLOO devices support the high-performance, 32-bit Cortex-M1 processor developed by ARM
for implementation in FPGAs. Cortex-M1 is a soft processor that is fully implemented in the FPGA
fabric. It has a three-stage pipeline that offers a good balance between low-power consumption
and speed when implemented in an M1 IGLOO device. The processor runs the ARMv6-M instruction
set, has a configurable nested interrupt controller, and can be implemented with or without the
debug block. Cortex-M1 is available for free from Actel for use in M1 IGLOO FPGAs.
The ARM-enabled devices have Actel ordering numbers that begin with M1AGL and do not support
AES decryption.
Flash*Freeze Technology
The IGLOO device offers unique Flash*Freeze technology, allowing the device to enter and exit
ultra-low-power Flash*Freeze mode. IGLOO devices do not need additional components to turn off
I/Os or clocks while retaining the design information, SRAM content, and registers. Flash*Freeze
technology is combined with in-system programmability, which enables users to quickly and easily
upgrade and update their designs in the final stages of manufacturing or in the field. The ability of
IGLOO V2 devices to support a wide range of core voltage (1.2 V to 1.5 V) allows further reduction
in power consumption, thus achieving the lowest total system power.
When the IGLOO device enters Flash*Freeze mode, the device automatically shuts off the clocks
and inputs to the FPGA core; when the device exits Flash*Freeze mode, all activity resumes and
data is retained.
The availability of low-power modes, combined with reprogrammability, a single-chip and single-
voltage solution, and availability of small-footprint, high pin-count packages, make IGLOO devices
the best fit for portable electronics.
IGLOO Device Family Overview
1-2 v2.0
Flash Advantages
Low Power
Flash-based IGLOO devices exhibit power characteristics similar to those of an ASIC, making them
an ideal choice for power-sensitive applications. IGLOO devices have only a very limited power-on
current surge and no high-current transition period, both of which occur on many FPGAs.
IGLOO devices also have low dynamic power consumption to further maximize power savings;
power is even further reduced by the use of a 1.2 V core voltage.
Low dynamic power consumption, combined with low static power consumption and Flash*Freeze
technology, gives the IGLOO device the lowest total system power offered by any FPGA.
Security
The nonvolatile, flash-based IGLOO devices do not require a boot PROM, so there is no vulnerable
external bitstream that can be easily copied. IGLOO devices incorporate FlashLock, which provides a
unique combination of reprogrammability and design security without external overhead,
advantages that only an FPGA with nonvolatile flash programming can offer.
IGLOO devices utilize a 128-bit flash-based lock and a separate AES key to secure programmed
intellectual property and configuration data. In addition, all FlashROM data in IGLOO devices can
be encrypted prior to loading, using the industry-leading AES-128 (FIPS192) bit block cipher
encryption standard. AES was adopted by the National Institute of Standards and Technology
(NIST) in 2000 and replaces the 1977 DES standard. IGLOO devices have a built-in AES decryption
engine and a flash-based AES key that make them the most comprehensive programmable logic
device security solution available today. IGLOO devices with AES-based security allow for secure,
remote field updates over public networks such as the Internet, and ensure that valuable IP
remains out of the hands of system overbuilders, system cloners, and IP thieves. The contents of a
programmed IGLOO device cannot be read back, although secure design verification is possible.
Security, built into the FPGA fabric, is an inherent component of the IGLOO family. The flash cells
are located beneath seven metal layers, and many device design and layout techniques have been
used to make invasive attacks extremely difficult. The IGLOO family, with FlashLock and AES
security, is unique in being highly resistant to both invasive and noninvasive attacks. Your valuable
IP is protected and secure, making remote ISP possible. An IGLOO device provides the most
impenetrable security for programmable logic designs.
Single Chip
Flash-based FPGAs store their configuration information in on-chip flash cells. Once programmed,
the configuration data is an inherent part of the FPGA structure, and no external configuration
data needs to be loaded at system power-up (unlike SRAM-based FPGAs). Therefore, flash-based
IGLOO FPGAs do not require system configuration components such as EEPROMs or
microcontrollers to load device configuration data. This reduces bill-of-materials costs and PCB
area, and increases security and system reliability.
Live at Power-Up
The Actel flash-based IGLOO devices support Level 0 of the LAPU classification standard. This
feature helps in system component initialization, execution of critical tasks before the processor
wakes up, setup and configuration of memory blocks, clock generation, and bus activity
management. The LAPU feature of flash-based IGLOO devices greatly simplifies total system design
and reduces total system cost, often eliminating the need for CPLDs and clock generation PLLs. In
addition, glitches and brownouts in system power will not corrupt the IGLOO device's flash
configuration, and unlike SRAM-based FPGAs, the device will not have to be reloaded when system
power is restored. This enables the reduction or complete removal of the configuration PROM,
expensive voltage monitor, brownout detection, and clock generator devices from the PCB design.
Flash-based IGLOO devices simplify total system design and reduce cost and design risk while
increasing system reliability and improving system initialization time.
IGLOO flash FPGAs allow the user to quickly enter and exit Flash*Freeze mode. This is done almost
instantly (within 1 µs) and the device retains configuration and data in registers and RAM. Unlike
SRAM-based FPGAs the device does not need to reload configuration and design state from
IGLOO Low-Power Flash FPGAs
v2.0 1-3
external memory components; instead it retains all necessary information to resume operation
immediately.
Reduced Cost of Ownership
Advantages to the designer extend beyond low unit cost, performance, and ease of use. Unlike
SRAM-based FPGAs, Flash-based IGLOO devices allow all functionality to be live at power-up; no
external boot PROM is required. On-board security mechanisms prevent access to all the
programming information and enable secure remote updates of the FPGA logic. Designers can
perform secure remote in-system reprogramming to support future design iterations and field
upgrades with confidence that valuable intellectual property cannot be compromised or copied.
Secure ISP can be performed using the industry-standard AES algorithm. The IGLOO family device
architecture mitigates the need for ASIC migration at higher user volumes. This makes the IGLOO
family a cost-effective ASIC replacement solution, especially for applications in the consumer,
networking/communications, computing, and avionics markets.
Firm-Error Immunity
Firm errors occur most commonly when high-energy neutrons, generated in the upper atmosphere,
strike a configuration cell of an SRAM FPGA. The energy of the collision can change the state of the
configuration cell and thus change the logic, routing, or I/O behavior in an unpredictable way.
These errors are impossible to prevent in SRAM FPGAs. The consequence of this type of error can be
a complete system failure. Firm errors do not exist in the configuration memory of IGLOO flash-
based FPGAs. Once it is programmed, the flash cell configuration element of IGLOO FPGAs cannot
be altered by high-energy neutrons and is therefore immune to them. Recoverable (or soft) errors
occur in the user data SRAM of all FPGA devices. These can easily be mitigated by using error
detection and correction (EDAC) circuitry built into the FPGA fabric.
Advanced Flash Technology
The IGLOO family offers many benefits, including nonvolatility and reprogrammability, through an
advanced flash-based, 130-nm LVCMOS process with seven layers of metal. Standard CMOS design
techniques are used to implement logic and control functions. The combination of fine granularity,
enhanced flexible routing resources, and abundant flash switches allows for very high logic
utilization without compromising device routability or performance. Logic functions within the
device are interconnected through a four-level routing hierarchy.
IGLOO family FPGAs utilize design and process techniques to minimize power consumption in all
modes of operation.
Advanced Architecture
The proprietary IGLOO architecture provides granularity comparable to standard-cell ASICs. The
IGLOO device consists of five distinct and programmable architectural features (Figure 1-1 on
page 1-4 and Figure 1-2 on page 1-4):
Flash*Freeze technology
FPGA VersaTiles
Dedicated FlashROM
Dedicated SRAM/FIFO memory
Extensive CCCs and PLLs
Advanced I/O structure
The FPGA core consists of a sea of VersaTiles. Each VersaTile can be configured as a three-input
logic function, a D-flip-flop (with or without enable), or a latch by programming the appropriate
flash switch interconnections. The versatility of the IGLOO core tile as either a three-input lookup
table (LUT) equivalent or a D-flip-flop/latch with enable allows for efficient use of the FPGA fabric.
The VersaTile capability is unique to the Actel ProASIC® family of third-generation-architecture
flash FPGAs. VersaTiles are connected with any of the four levels of routing hierarchy. Flash
switches are distributed throughout the device to provide nonvolatile, reconfigurable interconnect
programming. Maximum core utilization is possible for virtually any design.
The AGL015 and AGL030 do not support PLL or SRAM.
IGLOO Device Family Overview
1-4 v2.0
In addition, extensive on-chip programming circuitry allows for rapid, single-voltage (3.3 V)
programming of IGLOO devices via an IEEE 1532 JTAG interface.
*Not supported by AGL015 and AGL030 devices
Figure 1-1 • IGLOO Device Architecture Overview with Two I/O Banks (AGL015, AGL030, AGL060, and
AGL125)
Figure 1-2 • IGLOO Device Architecture Overview with Four I/O Banks (AGL250, AGL600, AGL400, and
AGL1000)
RAM Block
4,608-Bit Dual-Port
SRAM or FIFO Block*
VersaTile
CCC
I/Os
ISP AES
Decryption*
User Nonvolatile
FlashRom
Flash*Freeze
Technology
Charge
Pumps
Bank 0
Bank 1Bank 1
Bank 0Bank 0
Bank 1
ISP AES
Decryption*
User Nonvolatile
FlashRom
Flash*Freeze
Technology
Charge
Pumps
RAM Block
4,608-Bit Dual-Port
SRAM or FIFO Block
(AGL600 and AGL1000)
RAM Block
4,608-Bit Dual-Port
SRAM or FIFO Block
VersaTile
CCC
I/Os
Bank 0
Bank 3Bank 3
Bank 1Bank 1
Bank 2
IGLOO Low-Power Flash FPGAs
v2.0 1-5
Flash*Freeze Technology
The IGLOO device has an ultra-low power static mode, called Flash*Freeze mode, which retains all
SRAM and register information and can still quickly return to normal operation. Flash*Freeze
technology enables the user to quickly (within 1 µs) enter and exit Flash*Freeze mode by activating
the Flash*Freeze pin while all power supplies are kept at their original values. In addition, I/Os and
global I/Os can still be driven and can be toggling without impact on power consumption, clocks
can still be driven or can be toggling without impact on power consumption, and the device retains
all core registers, SRAM information, and states. I/O states are tristated during Flash*Freeze mode
or can be set to a certain state using weak pull-up or pull-down I/O attribute configuration. No
power is consumed by the I/O banks, clocks, JTAG pins, or PLL, and the device consumes as little as
5 µW in this mode.
Flash*Freeze technology allows the user to switch to active mode on demand, thus simplifying the
power management of the device.
The Flash*Freeze pin (active low) can be routed internally to the core to allow the user's logic to
decide when it is safe to transition to this mode. It is also possible to use the Flash*Freeze pin as a
regular I/O if Flash*Freeze mode usage is not planned, which is advantageous because of the
inherent low power static (as low as 12 µW) and dynamic capabilities of the IGLOO device. Refer to
Figure 1-3 for an illustration of entering/exiting Flash*Freeze mode.
VersaTiles
The IGLOO core consists of VersaTiles, which have been enhanced beyond the ProASICPLUS® core
tiles. The IGLOO VersaTile supports the following:
All 3-input logic functions—LUT-3 equivalent
Latch with clear or set
D-flip-flop with clear or set
Enable D-flip-flop with clear or set
Refer to Figure 1-4 for VersaTile configurations.
Figure 1-3 • IGLOO Flash*Freeze Mode
Actel IGLOO
FPGA
Flash*Freeze
Mode Control
Flash*Freeze Pin
Figure 1-4 • VersaTile Configurations
X1
Y
X2
X3
LUT-3
Data Y
CLK
Enable
CLR
D-FF
Data Y
CLK
CLR
D-FF
LUT-3 Equivalent D-Flip-Flop with Clear or Set Enable D-Flip-Flop with Clear or Set
IGLOO Device Family Overview
1-6 v2.0
User Nonvolatile FlashROM
Actel IGLOO devices have 1 kbit of on-chip, user-accessible, nonvolatile FlashROM. The FlashROM
can be used in diverse system applications:
Internet protocol addressing (wireless or fixed)
System calibration settings
Device serialization and/or inventory control
Subscription-based business models (for example, set-top boxes)
Secure key storage for secure communications algorithms
Asset management/tracking
Date stamping
Version management
The FlashROM is written using the standard IGLOO IEEE 1532 JTAG programming interface. The
core can be individually programmed (erased and written), and on-chip AES decryption can be used
selectively to securely load data over public networks (except in the AGL015 and AGL030 devices),
as in security keys stored in the FlashROM for a user design.
The FlashROM can be programmed via the JTAG programming interface, and its contents can be
read back either through the JTAG programming interface or via direct FPGA core addressing. Note
that the FlashROM can only be programmed from the JTAG interface and cannot be programmed
from the internal logic array.
The FlashROM is programmed as 8 banks of 128 bits; however, reading is performed on a byte-by-
byte basis using a synchronous interface. A 7-bit address from the FPGA core defines which of the 8
banks and which of the 16 bytes within that bank are being read. The three most significant bits
(MSBs) of the FlashROM address determine the bank, and the four least significant bits (LSBs) of
the FlashROM address define the byte.
The Actel IGLOO development software solutions, Libero® Integrated Design Environment (IDE)
and Designer, have extensive support for the FlashROM. One such feature is auto-generation of
sequential programming files for applications requiring a unique serial number in each part.
Another feature allows the inclusion of static data for system version control. Data for the
FlashROM can be generated quickly and easily using Actel Libero IDE and Designer software tools.
Comprehensive programming file support is also included to allow for easy programming of large
numbers of parts with differing FlashROM contents.
SRAM and FIFO
IGLOO devices (except the AGL015 and AGL030 devices) have embedded SRAM blocks along their
north and south sides. Each variable-aspect-ratio SRAM block is 4,608 bits in size. Available memory
configurations are 256×18, 519, 1k×4, 2k×2, and 4k×1 bits. The individual blocks have
independent read and write ports that can be configured with different bit widths on each port.
For example, data can be sent through a 4-bit port and read as a single bitstream. The embedded
SRAM blocks can be initialized via the device JTAG port (ROM emulation mode) using the UJTAG
macro (except in the AGL015 and AGL030 devices).
In addition, every SRAM block has an embedded FIFO control unit. The control unit allows the
SRAM block to be configured as a synchronous FIFO without using additional core VersaTiles. The
FIFO width and depth are programmable. The FIFO also features programmable Almost Empty
(AEMPTY) and Almost Full (AFULL) flags in addition to the normal Empty and Full flags. The
embedded FIFO control unit contains the counters necessary for generation of the read and write
address pointers. The embedded SRAM/FIFO blocks can be cascaded to create larger configurations.
PLL and CCC
IGLOO devices provide designers with very flexible clock conditioning circuit (CCC) capabilities.
Each member of the IGLOO family contains six CCCs. One CCC (center west side) has a PLL. The
AGL015 and AGL030 do not have a PLL.
The six CCC blocks are located at the four corners and the centers of the east and west sides. One
CCC (center west side) has a PLL.
IGLOO Low-Power Flash FPGAs
v2.0 1-7
All six CCC blocks are usable; the four corner CCCs and the east CCC allow simple clock delay
operations as well as clock spine access.
The inputs of the six CCC blocks are accessible from the FPGA core or from one of several inputs
located near the CCC that have dedicated connections to the CCC block.
The CCC block has these key features:
Wide input frequency range (fIN_CCC) = 1.5 MHz up to 250 MHz
Output frequency range (fOUT_CCC) = 0.75 MHz up to 250 MHz
2 programmable delay types for clock skew minimization
Clock frequency synthesis (for PLL only)
Additional CCC specifications:
Internal phase shift = 0°, 90°, 180°, and 270°. Output phase shift depends on the output
divider configuration (for PLL only).
Output duty cycle = 50% ± 1.5% or better (for PLL only)
Low output jitter: worst case < 2.5% × clock period peak-to-peak period jitter when single
global network used (for PLL only)
Maximum acquisition time is 300 µs (for PLL only)
Exceptional tolerance to input period jitter—allowable input jitter is up to 1.5 ns (for PLL
only)
Four precise phases; maximum misalignment between adjacent phases of 40 ps × 250 MHz /
fOUT_CCC (for PLL only)
Global Clocking
IGLOO devices have extensive support for multiple clocking domains. In addition to the CCC and
PLL support described above, there is a comprehensive global clock distribution network.
Each VersaTile input and output port has access to nine VersaNets: six chip (main) and three
quadrant global networks. The VersaNets can be driven by the CCC or directly accessed from the
core via multiplexers (MUXes). The VersaNets can be used to distribute low-skew clock signals or for
rapid distribution of high-fanout nets.
I/Os with Advanced I/O Standards
The IGLOO family of FPGAs features a flexible I/O structure, supporting a range of voltages (1.2 V,
1.5 V, 1.8 V, 2.5 V, 3.0 V wide range, and 3.3 V). IGLOO FPGAs support many different I/O
standards—single-ended and differential.
The I/Os are organized into banks, with two or four banks per device. The configuration of these
banks determines the I/O standards supported (Table 1-1).
Table 1-1 • I/O Standards Supported
I/O Bank Type Device and Bank Location
I/O Standards Supported
LVTTL/
LVCMOS
PCI/PCI-X LVPECL, LVDS,
B-LVDS, M-LVDS
Advanced East and west banks of AGL250 and
larger devices
✓✓
Standard Plus North and south banks of AGL250 and
larger devices
All banks of AGL060 and AGL125K
✓✓
Not supported
Standard All banks of AGL015 and AGL030 Not
supported
Not supported
IGLOO Device Family Overview
1-8 v2.0
Each I/O module contains several input, output, and enable registers. These registers allow the
implementation of the following:
Single-Data-Rate applications
Double-Data-Rate applications—DDR LVDS, B-LVDS, and M-LVDS I/Os for point-to-point
communications
IGLOO banks for the AGL250 device and above support LVPECL, LVDS, B-LVDS, and M-LVDS. B-LVDS
and M-LVDS can support up to 20 loads.
Hot-swap (also called hot-plug, or hot-insertion) is the operation of hot-insertion or hot-removal of
a card in a powered-up system.
Cold-sparing (also called cold-swap) refers to the ability of a device to leave system data
undisturbed when the system is powered up, while the component itself is powered down, or
when power supplies are floating.
Wide Range I/O Support
Actel IGLOO devices support JEDEC-defined wide range I/O operation. IGLOO devices support both
the JESD8-B specification, covering 3 V and 3.3 V supplies, for an effective operating range of 2.7 V
to 3.6 V, and JESD8-12 with its 1.2 V nominal, supporting an effective operating range of 1.14 V to
1.575 V.
Wider I/O range means designers can eliminate power supplies or power conditioning components
from the board or move to less costly components with greater tolerances. Wide range eases I/O
bank management and provides enhanced protection from system voltage spikes, while providing
the flexibility to easily run custom voltage applications.
Part Number and Revision Date
Part Number 51700095-001-10
Revised November 2009
List of Changes
The following table lists critical changes that were made in the current version of the document.
Previous Version Changes in Current Version (v2.0) Page
v1.6
(September 2009)
The version changed to v2.0 for IGLOO datasheet chapters, indicating the
datasheet contains information based on final characterization.
N/A
v1.5
(April 2009)
The "Reprogrammable Flash Technology" section was modified to add "250 MHz
(1.5 V systems) and 160 MHz (1.2 V systems) System Performance."
I
"IGLOO Ordering Information" was revised to note that halogen-free packages
are available with RoHS-compliant packaging.
III
Table 1-1 · I/O Standards Supported is new. 1-7
The definitions of hot-swap and cold-sparing were added to the "I/Os with
Advanced I/O Standards" section.
1-7
v1.4
(February 2009)
M1AGL400 is no longer offered and was removed from the "IGLOO Product
Family" table, "IGLOO Ordering Information", and "Temperature Grade
Offerings".
I, III, IV
The –F speed grade is no longer offered for IGLOO devices. The speed grade
column and note regarding –F speed grade were removed from "IGLOO
Ordering Information". The "Speed Grade and Temperature Grade Matrix"
section was removed.
III, IV
v1.3
(December 2008)
The "Advanced I/O" section was revised to include two bullets regarding wide
range power supply voltage support.
I
IGLOO Low-Power Flash FPGAs
v2.0 1-9
3.0 V wide range was added to the list of supported voltages in the "I/Os with
Advanced I/O Standards" section. The "Wide Range I/O Support" section is new.
1-8
v1.2
(October 2008)
QN48 and QN68 were added to the AGL030 for the following tables:
"IGLOO Product Family"
"IGLOO Ordering Information"
"Temperature Grade Offerings"
N/A
QN132 is fully supported by AGL125 so footnote 3 was removed.
v1.1
(July 2008)
This document was updated to include AGL400 device information. The
following sections were updated:
"IGLOO Product Family"
"IGLOO Ordering Information"
"Temperature Grade Offerings"
"IGLOO Product Family"
Figure 1-2 · IGLOO Device Architecture Overview with Four I/O Banks (AGL250,
AGL600, AGL400, and AGL1000)
N/A
v1.0
(March 2008)
As a result of the Libero IDE v8.4 release, Actel now offers a wide range of core
voltage support. The document was updated to change 1.2 V / 1.5 V to 1.2 V to
1.5 V.
N/A
51700095-001-3
(March 2008)
This document was divided into two sections and given a version number,
starting at v1.0. The first section of the document includes features, benefits,
ordering information, and temperature and speed grade offerings. The second
section is a device family overview.
N/A
51700095-001-2
(February 2008)
The "Low Power" section was updated to change "1.2 V and 1.5 V Core
Voltage" to "1.2 V and 1.5 V Core and I/O Voltage." The text "(from 12 µW)"
was removed from "Low-Power Active FPGA Operation."
1.2_V was added to the list of core and I/O voltages in the "Advanced I/O" and
"I/Os with Advanced I/O Standards" sections.
I
I, 1-7
The "Embedded Memory" section was updated to remove the footnote
reference from the section heading and place it instead after "4,608-Bit" and
"True Dual-Port SRAM (except ×18)."
I
51700095-001-1
(January 2008)
This document was updated to include AGL015 device information. QN68 is a
new package that was added because it is offered in the AGL015. The following
sections were updated:
"Features and Benefits"
"IGLOO Ordering Information"
"Temperature Grade Offerings"
"IGLOO Product Family"
"IGLOO FPGAs Package Sizes Dimensions"
"AGL015 and AGL030" note
"IGLOO Device Family Overview"
N/A
The "Temperature Grade Offerings" table was updated to include M1AGL600. IV
In the "IGLOO Ordering Information" table, the QN package measurements
were updated to include both 0.4 mm and 0.5 mm.
III
In the "General Description" section, the number of I/Os was updated from 288
to 300.
1-5
51700095-001-0
(January 2008)
The "Low Power" section was updated to change the description of low-power
active FPGA operation to "from 12 µW" from "from 25 µW." The same update
was made in the "General Description" section and the "Flash*Freeze
Technology" section.
I, 1-1, 1-5
Previous Version Changes in Current Version (v2.0) Page
IGLOO Device Family Overview
1-10 v2.0
Advance v0.7
(November 2007)
This document was previously in datasheet Advance v0.7. As a result of moving
to the handbook format, Actel has restarted the version numbers. The new
version number is 51700095-001-0.
N/A
Advance v0.6
(November 2007)
Table 1 IGLOO Product Family, the "I/Os Per Package1" table, and the
Temperature Grade Offerings table were updated to reflect the following:
CS196 is now supported for AGL250; device/package support for QN132 is to be
determined for AGL250; the CS281 package was added for AGL600 and
AGL1000.
i, ii, iv
Table 2 IGLOO FPGAs Package Sizes Dimensions is new, and package sizes
were removed from the "I/Os Per Package1" table.
ii
The "I/Os Per Package1"table was updated to reflect 77 instead of 79 single-
ended I/Os for the VG100 package for AGL030.
ii
Advance v0.6
(November 2007)
A note was added to "IGLOO Ordering Information" regarding marking
information.
iii
Advance v0.5
(September 2007)
Table 1 IGLOO Product Family, the "I/Os Per Package1" table, and the "IGLOO
Ordering Information", and the Temperature Grade Offerings table were
updated to add the UC81 package.
i, ii, iii, iv
Advance v0.4
(September 2007)
Table 1 IGLOO Product Family was updated for AGL030 in the Package Pins
section to change CS181 to CS81.
i
Advance v0.3
(August 2007)
Cortex-M1 device information was added to Table 1 IGLOO Product Family,
the "I/Os Per Package1" table, "IGLOO Ordering Information", and Temperature
Grade Offerings.
i, ii, iii, iv
The number of single-ended I/Os for the CS81 package for AGL030 was updated
to 66 in the "I/Os Per Package1" table.
ii
Advance v0.2
(July 2007)
In Table 1 IGLOO Product Family, the CS81 package was added for AGL030.
The CS196 was replaced by the CS121 for AGL060. Table note 3 was moved to
the specific packages to which it applies for AGL060: QN132 and FG144.
i
The CS81 and CS121 packages were added to the "I/Os Per Package1" table. The
number of single-ended I/Os was removed for the CS196 package in AGL060.
Table note 6 was moved to the specific packages to which it applies for AGL060:
QN132 and FG144.
ii
Advance v0.2
(continued)
The CS81 and CS121 packages were added to the Temperature Grade Offerings
table. The temperature grade offerings were removed for the CS196 package in
AGL060. Table note 3 was moved to the specific packages to which it applies for
AGL060: QN132 and FG144.
iv
Advance v0.1 The words "ambient temperature" were added to the temperature range in the
"IGLOO Ordering Information", Temperature Grade Offerings, and "Speed
Grade and Temperature Grade Matrix" sections.
iii, iv
Previous Version Changes in Current Version (v2.0) Page
IGLOO Low-Power Flash FPGAs
v2.0 1-11
Datasheet Categories
Categories
In order to provide the latest information to designers, some datasheets are published before data
has been fully characterized. Datasheets are designated as "Product Brief," "Advance,"
"Preliminary," and "Production." The definitions of these categories are as follows:
Product Brief
The product brief is a summarized version of a datasheet (advance or production) and contains
general product information. This document gives an overview of specific device and family
information.
Advance
This version contains initial estimated information based on simulation, other products, devices, or
speed grades. This information can be used as estimates, but not for production. This label only
applies to the DC and Switching Characteristics chapter of the datasheet and will only be used
when the data has not been fully characterized.
Preliminary
The datasheet contains information based on simulation and/or initial characterization. The
information is believed to be correct, but changes are possible.
Unmarked (production)
This version contains information that is considered to be final.
Export Administration Regulations (EAR)
The products described in this document are subject to the Export Administration Regulations
(EAR). They could require an approved export license prior to export from the United States. An
export includes release of product or disclosure of technology to a foreign national inside or
outside the United States.
Actel Safety Critical, Life Support, and High-Reliability
Applications Policy
The Actel products described in this advance status document may not have completed Actel’s
qualification process. Actel may amend or enhance products during the product introduction and
qualification process, resulting in changes in device functionality or performance. It is the
responsibility of each customer to ensure the fitness of any Actel product (but especially a new
product) for a particular purpose, including appropriateness for safety-critical, life-support, and
other high-reliability applications. Consult Actel’s Terms and Conditions for specific liability
exclusions relating to life-support applications. A reliability report covering all of Actel’s products is
available on the Actel website at http://www.actel.com/documents/ORT_Report.pdf. Actel also
offers a variety of enhanced qualification and lot acceptance screening procedures. Contact your
local Actel sales office for additional reliability information.
Actel is the leader in low-power and mixed-signal FPGAs and offers the most comprehensive portfolio of
system and power management solutions. Power Matters. Learn more at www.actel.com.
Actel Corporation
2061 Stierlin Court
Mountain View, CA
94043-4655 USA
Phone 650.318.4200
Fax 650.318.4600
Actel Europe Ltd.
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Station Approach, Blackwater
Camberley Surrey GU17 9AB
United Kingdom
Phone +44 (0) 1276 609 300
Fax +44 (0) 1276 607 540
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EXOS Ebisu Buillding 4F
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Tokyo 150 Japan
Phone +81.03.3445.7671
Fax +81.03.3445.7668
http://jp.actel.com
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Room 2107, China Resources Building
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Wanchai, Hong Kong
Phone +852 2185 6460
Fax +852 2185 6488
www.actel.com.cn
51700095-001-10/11.09
Actel, IGLOO, Actel Fusion, ProASIC, Libero, Pigeon Point and the associated logos are trademarks or registered
trademarks of Actel Corporation. All other trademarks and service marks are the property of their respective owners.