AT27LV512A-70TC - Atmel Corporation

Features

•Fast Read Access Time - 70 ns

•Dual Voltage Range Operation

– Low Voltage Power Supply Range, 3.0V to 3.6V

or Standard 5V ± 10% Supply Range

•Compatible with JEDEC Standard AT27C512R

•Low Powe r CMOS Operation

– 20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V

– 29 mW max. Active at 5 MHz for VCC = 3.6V

•JEDEC Standard Packages

– 32-Lead PLCC

– 28-Lead 330-mil SOIC

– 28-Lead TSOP

•High Reliability CMOS Technology

– 2,000V ESD Protection

– 200 mA Latchup Immunity

•Rapid™ Pr o gramm ing Algorith m - 100 µs/b y te (typic al)

•CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL

•Integrated Product Identification Code

•Commercial and Industrial Tempe ra ture Ranges

Description

The AT27LV512A is a high performance, low power, low voltage 524,288-bit one-time

programmable read only memory (OTP EPROM) organized as 64K by 8 bits. It

require s only one su pply in the r ange of 3.0V to 3. 6V in normal r ead mo de o peration ,

making it ideal for fast, portable systems using battery power.

512K (64K x 8)

Low Voltage

OTP EPROM

AT27LV512A

Rev. 0607B–10/98

Pin Configurations

Pin Name Function

A0 - A15 Addresses

O0 - O7 Outputs

CE Chip Enable

OE/VPP Output Enable/

Program Supply

NC No Connect

TSOP Top View

Type 1

OE/VPP

A11

A13

A14

VCC

A15

A12

A10

GND

PLCC Top View

Note: PLCC P ackage Pins 1 and 17

are DON’T CONNECT.

A11

OE/VPP

A10

GND

A12

A15

VCC

A14

A13

(continued)

SOIC Top View

A15

A12

GND

VCC

A14

A13

A11

OE/VPP

A10

AT27LV512A

Atmel’s inno vative design techn iques provide fast sp eeds

that rival 5V par ts while k eeping the low power c onsump-

tion of a 3.3V supply. At VCC = 3.0V, any byte can be

accessed in less than 70 ns. With a typical power dissipa-

tion of only 18 mW at 5 MHz and VCC = 3.3V, the

AT27LV512A consumes less than one fifth the power of a

standard 5V EPROM.

Standby mode supply current is typically less than 1 µA at

3.3V.

The AT27LV512A is availa ble in in dustr y standar d J EDEC-

approved one-time programmable (OTP) plastic PLCC,

SOIC, an d TSOP pac kages. All devices featu re two-line

control (CE, OE) to give designers the flexibility to prevent

bus contention.

The AT27LV512A operating with VCC at 3.0V produces TTL

level outputs that are compatible with standard TTL logic

devices operating at VCC = 5.0V. The device is also capa-

ble of standard 5-volt operation making it ideally suited for

dual supply range systems or card products that are plug-

gable in both 3-volt and 5-volt hosts.

Atmel’s AT27LV512A has additional features to ensure

high qua lity and eff icient p roduc tion us e. The Ra pid™ Pro-

gramming Algorithm reduces the time required to program

the part and guarantees reliable programming. Program-

ming time is typically only 100 µs/byte. The Integrated

Product Identificatio n Code electronically ident ifies the

device and manufacture r. This feature is used by industry

standar d programming equipment to s elect the pr oper pro-

gramm ing algor ithms an d voltag es. The A T27LV51 2A pro-

grams exactly the same way as a standard 5V AT27C512R

and uses the same programming equipment.

System Considerations

Switching between active and standby conditions via the

Chip Enabl e pi n may pr odu ce tra ns ien t vo ltag e ex cu rs ions .

Unless accommodated by the system design, these tran-

sients may exceed data sheet limits, resulting in device

non-c onforman ce. At a mi nimum, a 0. 1 µF high frequency,

low inherent inductance, ceramic capacitor should be uti-

lized for each device. T his capacitor should be connected

between the VCC and Ground terminals of the device, as

close to the device as possible. Additionally, to stabilize the

supply voltage level on printed circuit boards with large

EPROM arrays, a 4.7 µF bulk electrolytic capacitor should

be utilized, again connected between the VCC and Ground

terminals. This capacitor should be positioned as close as

possible to the point where the power supply is connected

to the array.

Bloc k Diagram

AT27LV512A

Note: 1. Minimum voltage is -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns.Maximum output pin voltage is

VCC + 0.75V dc which may be exceeded if certain precautions are observed (consult application notes) and which may

overshoot to +7.0 volts for pulses of less than 20 ns.

Notes: 1. X can be VIL or VIH.

2. R ead, output disable, an d standby modes require, 3.0V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.

3. R efer to Programming Characteristics. Programming modes require VCC = 6.5V.

4. VH = 12.0 ± 0.5V.

5. Two identifier bytes ma y be selected. All Ai inputs are held low (VIL), e xcept A9 which is set to VH and A0 which is toggled l ow

(VIL) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.

Absolute Maximum Ratings*

Temperature Under Bias.................................. -40°C to +85°C *NOTICE: Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam-

age t o the dev ice. T his is a stres s r atin g only an d

functio nal oper a tion of the dev ice at the se or an y

other conditions beyond those indicated in the

operational sections of this specifica tion is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect

device reli ability

Storage Temperature..................................... -65°C to +125°C

Voltage on Any Pin with

Respect to Ground .........................................-2.0V to +7.0V(1)

Vo ltage on A9 with

Respect to Ground ......................................-2.0V to +14.0V(1)

VPP Supply Voltage with

Respect to Ground .......................................-2.0V to +14.0V(1)

Operating Modes

Mode \ Pin CE OE/VPP Ai VCC Outputs

Read(2) VIL VIL Ai VCC(2) DOUT

Output Disable(2) VIL VIH X(1) VCC(2) High Z

Standby(2) VIH XXV

CC(2) High Z

Rapid Program(3) VIL VPP Ai VCC(3) DIN

PGM Inhibit(3) VIH VPP XV

CC(3) High Z

Product Identification(3)(5) VIL VIL

A9 = VH(4)

A0 = VIH or VIL

A1 - A15 = VIL

VCC(3) Identification Code

AT27LV512A

Notes: 1. VCC must be applied simultaneously with or before OE/VPP

, and removed simultaneously with or after OE/VPP

2. OE/VPP ma y be conne cted di rectly to VCC, exce pt during progr amm ing. Th e supp ly curre nt w ould th en be th e sum o f ICC an d

IPP

DC and AC Operating Conditions for Read Operation

AT27LV512A

-70 -90 -12 -15

Operating Temperature

(Case) Com. 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°C

Ind. -40°C - 85°C -40°C - 85°C -40°C - 85°C -40°C - 85°C

VCC Power Supply 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V

5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10%

DC and Operating Characteristics for Read Operation

Symbol Parameter Condition Min Max Units

VCC = 3.0V to 3.6V

ILI Input Load Current VIN = 0V to VCC ±1µA

ILO Output Leakage Current VOUT = 0V to VCC ±5µA

IPP1(2) VPP(1) Read/Standby Current VPP = VCC 10 µA

ISB VCC(1) Standby Current ISB1 (CMOS), CE = VCC ± 0.3V 20 µA

ISB2 (TTL), CE = 2.0 to VCC + 0.5V 100 µA

ICC VCC Active Current f = 5 MHz, IOUT = 0 mA, CE = VIL 8mA

IL Input Low Voltage -0.6 0.8 V

VIH Input High Voltage 2.0 VCC + 0.5 V

VOL Outp ut Low Voltage IOL = 2.0 mA 0.4 V

VOH Output High Voltage IOH = -2.0 mA 2.4 V

VCC = 4.5V to 5.5V

ILI Input Load Current VIN = 0V to VCC ±1µA

ILO Output Leakage Current VOUT = 0V to VCC ±5µA

IPP1(2) VPP(1) Read/Standby Current VPP = VCC 10 µA

ISB VCC(1) Standby Current ISB1 (CMOS), CE = VCC ± 0.3V 100 µA

ISB2 (TTL), CE = 2.0 to VCC + 0.5V 1 mA

ICC VCC Active Current f = 5 MHz, IOUT = 0 mA, CE = VIL 20 mA

VIL Input Low Voltage -0.6 0.8 V

VIH Input High Voltage 2.0 VCC + 0.5 V

VOL Outp ut Low Voltage IOL = 2.1 mA 0.4 V

VOH Output High Voltage IOH = -400 µA2.4V

AT27LV512A

AC Waveforms for Read Operation(1)

Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

2. OE/VPP may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.

3. OE/VPP may be delayed up to tACC - tOE after the address is valid without impact on tACC.

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

AC Characteristics for Read Operation

VCC = 3.0V to 3.6V and 4.5V to 5.5V

AT27LV512A

UnitsSymbol Parameter Condition

-70 -90 -12 -15

Min Max Min Max Min Max Min Max

tACC(3) Address to Output Delay CE = OE/VPP = VIL 70 90 120 150 ns

tCE(2) CE to Output Delay OE/VPP = VIL 70 90 120 150 ns

tOE(2)(3) OE/VPP to Output Delay CE = VIL 40 50 50 60 ns

tDF(4)(5) OE/VPP or CE High to

Output Float, whichever

occurred first 35 40 40 50 ns

tOH

Output Hold from Address,

CE or OE/VPP

, whichever

occurred first 0000ns

AT27LV512A

Input Test Waveforms and

Measurement Levels Output Test Load

Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.

tR, tF < 20 ns (10% to 90%)

Note: CL = 100 pF including

jig capacitance.

Pin Capacitance

f = 1 MHz, T = 2 5°C(1)

Symbol Typ Max Units Conditions

CIN 46pFV

IN = 0V

COUT 812pFV

OUT = 0V

AT27LV512A

Programming Waveforms(1)

Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.

2. tOE and tDFP are characteristics of the device but must be accommodated by the programmer.

DC Pr ogramming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V

Symbol Parameter Test Conditions

Limits

UnitsMin Max

ILI Input Load Current VIN = VIL, VIH 10 µA

VIL Input Low Level -0.6 0.8 V

VIH Input High Level 2.0 VCC + 0.5 V

VOL Output Lo w Voltage IOL = 2.1 mA 0.4 V

VOH Output High Voltage IOH = -400 µA 2.4 V

ICC2 VCC Supply Current (Program and Ve rify) 25 mA

IPP2 OE/VPP Current CE = VIL 25 mA

VID A9 Product Identification Voltage 11.5 12.5 V

AT27LV512A

Notes: 1. VCC must be applied simultaneously or before OE/VPP and removed simultaneously or after OE/VPP

2. This para meter i s only sample d and i s not 1 00% te sted. O utput Flo at is defi ned as the po int wh ere dat a is no longe r driv en—

see timing diagram.

3. Program Pulse width tolerance is 100 µsec ± 5%.

Note: 1. The AT27LV512A has the same Product Identification Code as the AT27C512R. Both are programming compatible.

AC Programming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V

Symbol Parameter Test Conditions(1)

Limits

UnitsMin Max

tAS Address Setup Time

Input Rise and Fall Times:

(10% to 90%) 20 ns

Input Pulse Levels: 0.45V to 2.4V

Input Timing Reference Level:

0.8V to 2.0 V

Output Timing Reference Level:

0.8V to 2.0 V

2µs

tOES OE/VPP Setup Time 2 µs

tOEH OE/VPP Hold Time 2 µs

tDS Data Setup Time 2 µs

tAH Address Hold Time 0 µs

tDH Data Hold Time 2 µs

tDFP CE High to Output Float Delay(2) 0 130 ns

tVCS VCC Setup Time 2 µs

tPW CE Program Pulse Width(3) 95 105 µs

tDV Data Valid from CE(2) 1µs

tVR OE/VPP Recovery Time 2 µs

tPRT OE/VPP Pulse Rise Time During

Programming 50 ns

Atmel’s 27LV512A Integrated Product Identification Code(1)

Codes

Pins Hex

DataA0 O7 O6 O5 O4 O3 O2 O1 O0

Manufacturer 0000111101E

Device Type 1000001010D

AT27LV512A

Rapid Programming Algorithm

A 100 µs C E pulse width is used to program. The address

is set to th e f irst locatio n. VCC is rais ed to 6 .5V an d O E /VPP

is raised to 13.0V. Each address is fi rst programmed wi th

one 100 µs CE pulse witho ut verificati on. Then a verifica-

tion / r eprogr ammi ng lo op is exec uted fo r each a ddress. In

the event a byte fails to pass verification, up to 10 succes-

sive 100 µs pulses are applied with a verification after each

pulse. If the byte fails to verify after 10 pulses have been

applied, th e par t is c on sider e d f ail ed . A fter the byte verif ies

properly, the next address is selected until all have been

checked. OE/VPP is then lowered to VIL and VCC to 5. 0V . All

bytes are read again and compared with the original data to

determine if the device passes or fails.

AT27LV512A

Ordering Information

tACC

(ns)

ICC (mA)

Ordering Code Package Operation RangeActive Standby

70 8 0.02 AT27LV512A-70JC

AT27LV512A-70RC

AT27LV512A-70TC

32J

28R

28T

Commercial

(0°C to 70°C)

8 0.02 AT27LV512A-70JI

AT27LV512A-70RI

AT27LV512A-70TI

32J

28R

28T

Industrial

(-40°C to 85°C)

90 8 0.02 AT27LV512A-90JC

AT27LV512A-90RC

AT27LV512A-90TC

32J

28R

28T

Commercial

(0°C to 70°C)

8 0.02 AT27LV512A-90JI

AT27LV512A-90RI

AT27LV512A-90TI

32J

28R

28T

Industrial

(-40°C to 85°C)

120 8 0.02 AT27LV512A-12JC

AT27LV512A-12RC

AT27LV512A-12TC

32J

28R

28T

Commercial

(0°C to 70°C)

8 0.02 AT27LV512A-12JI

AT27LV512A-12RI

AT27LV512A-12TI

32J

28R

28T

Industrial

(-40°C to 85°C)

150 8 0.02 AT27LV512A-15JC

AT27LV512A-15RC

AT27LV512A-15TC

32J

28R

28T

Commercial

(0°C to 70°C)

8 0.02 AT27LV512A-15JI

AT27LV512A-15RI

AT27LV512A-15TI

32J

28R

28T

Industrial

(-40°C to 85°C)

Package Type

32J 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)

28R 28-Lead, 0.330" Wide, Plastic Gull Wing Small Outline (SOIC)

28T 28-Lead, Thin Small Outline Package (TSOP)

AT27LV512A

Packaging Information

.045(1.14) X 45˚ PIN NO. 1

IDENTIFY .025(.635) X 30˚ - 45˚

.012(.305)

.008(.203)

.021(.533)

.013(.330)

.530(13.5)

.490(12.4)

.030(.762)

.015(.381)

.095(2.41)

.060(1.52)

.140(3.56)

.120(3.05)

.032(.813)

.026(.660)

.050(1.27) TYP

.553(14.0)

.547(13.9)

.595(15.1)

.585(14.9)

.300(7.62) REF

.430(10.9)

.390(9.90)

AT CONTACT

POINTS

.022(.559) X 45˚ MAX (3X)

.453(11.5)

.447(11.4)

.495(12.6)

.485(12.3)

*Controlling dimension: millimeters

INDEX

MARK

AREA

0.55 (0.022)

BSC

0.20 (0.008)

0.10 (0.004)

7.15 (0.281)

REF

8.10 (0.319)

7.90 (0.311) 1.25 (0.049)

1.05 (0.041)

0.27 (0.011)

0.18 (0.007)

11.9 (0.469)

11.7 (0.461) 13.7 (0.539)

13.1 (0.516)

50.20 (0.008)

0.15 (0.006)

REF

0.70 (0.028)

0.30 (0.012)

32J, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)

Dimensions in Inches and (Millimeters)

JEDEC STANDARD MS-016 AE

28R, 28-Lead, 0.330" Wide, Plastic Gull Wing Small

Outline (SOIC)

Dimensions in Inches and (Millimeters)

28T, 28-Lead, Plastic Thin Small Outline Package

(TSOP)

Dimensions in Millimeters and (Inches)*

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Printed on recycled paper.

0607B–10/98/xM