5962-8950602LA - Integrated Device Technology, Inc.

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER MILITARY AND COMMERCIAL TEMPERATURE RANGES

JULY 2000

1999 Integrated Device Technology, Inc. DSC-4612/2c

IDT54/74FCT827A/B/C

MILITARY AND COMMERCIAL TEMPERATURE RANGES

HIGH PERFORMANCE

CMOS BUFFER

DESCRIPTION:

The IDT54/74FCT800 series is built using an advanced dual metal

CMOS technology.

The IDT54/74FCT827 10-bit bus drivers provide high-performance bus

interface buffering for wide data/address paths or buses carrying parity. The

10-bit buffers have NAND-ed output enables for maximum control flexibility.

All of the IDT54/74FCT800 high-performance interface family are de-

signed for high-capacitance load drive capability, while providing low-

capacitance bus loading at both inputs and outputs. All inputs have clamp

diodes and all outputs are designed for low-capacitance bus loading in high-

impedance state.

FUNCTIONAL BLOCK DIAGRAM

OE1OE2

FEATURES:

− Faster than AMD’s Am29827 series

− Equivalent to AMD’s Am29827 bipolar buffers in pinout/function,

speed and output drive over full temperature and voltage supply

extremes

− IDT54/74FCT827A equivalent to FAST™

− IDT54/74FCT827B 35% faster than FAST

− IDT54/74FCT827C 45% faster than FAST

− IOL = 48mA (commercial), and 32mA (military)

− Clamp diodes on all inputs for ringing suppression

− CMOS power levels (1mW typ. static)

− TTL input and output level compatible

− CMOS output level compatible

− Substantially lower input current levels than AMD’s bipolar

Am29800 series (5µA max.)

− Military product compliant to MIL-STD-883, Class B

− Available in the following packages:

• Commercial: SOIC

• Military: CERDIP, LCC, CERPACK

MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER

CERDIP/ SOIC/ CERPACK

TOP VIEW

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS(1)

Symbol Rating Commercial Military Unit

VTERM(2) Terminal Voltage

with Respect to GND –0.5 to +7 –0.5 to +7 V

VTERM(3) Terminal Voltage

with Respect to GND –0.5 to VCC –0.5 to VCC V

TAOperating Temperature 0 to +70 –55 to +125 °C

TBIAS Temperature Under

Bias –55 to +125 –65 to +135 °C

TSTG Storage Temperature –55 to +125 –65 to +150 °C

PTPower Dissipation 0.5 0.5 W

IOUT DC Output Current 120 120 mA

8-link

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM

RATINGS may cause permanent damage to the device. This is a

stress rating only and functional operation of the device at these or

any other c onditions above t hose indicated in the operational s ections

of this specification is not implied. Exposure to absolute maximum

rating conditions for extended periods may affect reliability. No

terminal voltage may exceed VCC by +. 5V unless otherwise noted.

2. Input and V CC t erm i nal s only.

3. Outputs and I/O termi nal s only.

LOGIC SYMBOL

LCC

TOP VIEW

D24-1

SO24-2

E24-1

VCC

OE2

OE1

GND

15 16

12 13 14

GND

17 18

2843 2 2726

INDEX

L28-1

OE1

D0-9 Y0-9

OE2

CAPACITANCE (TA = +25OC, f = 1.0MHz)

Symbol Parameter(1) Conditions Typ. Max. Unit

CIN Input Capacitance VIN = 0V 6 10 pF

COUT Output

Capacitance VOUT = 0V 8 12 pF

8-link

NOTE:

1. This parameter is measured at characteri zation but not tested.

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION

Name I/O Description

OEII When both are LOW, the outputs are enabled. When

either one or both are HIGH, the outputs are High Z.

DII 10-bit data input.

YIO 10-bit data output.

FUNCTION TABLE(1)

Inputs Output

OE1OE2DIYIFunction

HTransparent

ZThree-State

NOTE:

1. H = HIGH

L = LOW

X = Don't Care

Z = High-Impedance

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC–0.2V

Commercial: TA = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10%

Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit

VIH Input HIGH Level Guaranteed Logic HIGH Level 2 — — V

VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V

IIH Input HIGH Current VCC = Max. VI = VCC ——5µA

= 2.7V — — 5(4)

IIL Input LOW Current VI = 0.5V — — –5(4)

VI = GND — — –5

IOZH Off State (High Impedance) VCC = Max. VO = VCC ——10µA

Output Current VO = 2.7V — — 10(4)

IOZL VO = 0.5V — — –10(4)

VO = GND — — –10

VIK Clamp Diode Voltage VCC = Min., IN = –18mA — –0.7 –1.2 V

IOS Short Circuit Current VCC = Max.(3), VO = GND –75 –120 — mA

VOH Output HIGH Voltage VCC = 3V, VIN = VLC or VHC, IOH = –32µA VHC VCC —V

CC = Min. IOH = –300µA VHC VCC —

VIN = VIH or VIL IOH = –15mA MIL. 2.4 4.3 —

IOH = –24mA COM'L. 2.4 4.3 —

VOL Output LOW Voltage VCC = 3V, VIN = VLC or VHC, IOL = 300µA — GND VLC V

VCC = Min. IOL = 300µA — GND VLC(4)

VIN = VIH or VIL IOL = 32mA MIL. — 0.3 0.5

IOL = 48mA COM'L. — 0.3 0.5

NOTES:

1. For conditi ons shown as m ax . or min., use appropriate val ue specifi ed under E l ectrical Characteristics for the applic abl e device type.

2. Typical values are at VCC = 5.0V, +25°C am bi ent and maxim um l oadi ng.

3. Not m ore than one output shoul d be shorted at one t i m e. Duration of t he short circuit test should not exceed one sec ond.

4. This param eter is guaranteed but not test ed.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5.0V, +25°C ambient.

3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND.

4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.

5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fiNi)

ICC = Quiescent Current

∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)

DH = Duty Cycle for TTL Inputs High

NT = Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

fi = Input Frequency

Ni = Number of Inputs at fi

All currents are in milliamps and all frequencies are in megahertz.

POWER SUPPLY CHARACTERISTICS

VLC = 0.2V; VHC = VCC – 0.2V

Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit

ICC Quiescent Power Supply Current VCC = Max.

VIN ≥ VHC; VIN ≤ VLC —0.21.5mA

∆I

CC Quiescent Power Supply Current

TTL Inputs HIGH VCC = Max.

VIN = 3.4V(3) —0.52mA

CCD Dynamic Power Supply Current(4) VCC = Max.

Outputs Open

OE1 = OE2 = GND

One Input Toggling

50% Duty Cycle

VIN ≥ VHC

VIN ≤ VLC — 0.15 0.25 mA/

MHz

ICTotal Power Supply Current(6) VCC = Max.

Outputs Open

fi = 10MHz

VIN ≥ VHC

VIN ≤ VLC

(FCT)

—1.74mA

50% Duty Cycle

OE1 = OE2 = GND

One Bit Toggling

VIN = 3.4V

VIN = GND —25

CC = Max.

Outputs Open

fi = 2.5MHz

VIN ≥ VHC

VIN ≤ VLC

(FCT)

—3.26.5

(5)

50% Duty Cycle

OE1 = OE2 = GND

Eight Bits Toggling

VIN = 3.4V

VIN = GND — 5.2 14.5(5)

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER MILITARY AND COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS IDT54/74FCT827A IDT54/74FCT827B IDT54/74FCT827C

Com'l. Mil. Com'l. Mil. Com'l. Mil.

Parameter Description Conditions(1) Min.(2) Max.Min.(2) Max.Min.(2) Max.Min.(2) Max.Min.(2) Max.Min.(2) Max.Unit

tPLH

tPHL Propagation Delay

DI to YICL = 50pF

RL = 500Ω1.5 8 1.5 9 1.5 5 1.5 6.5 1.5 4.4 1.5 5 ns

CL = 300pF(3)

RL = 500Ω1.5 15 1.5 17 1.5 13 1.5 14 1.5 10 1.5 11

tPZH

tPZL Output Enable Time

OEI to YICL = 50pF

RL = 500Ω1.5 12 1.5 13 1.5 8 1.5 9 1.5 7 1.5 8 ns

CL = 300pF(3)

RL = 500Ω1.5 23 1.5 25 1.5 15 1.5 16 1.5 14 1.5 15

tPHZ

tPLZ Output Disable Time

OEI to YICL = 5pF(3)

RL = 500Ω1.5 9 1.5 9 1.5 6 1.5 7 1.5 5.7 1.5 6.7 ns

CL = 50pF

RL = 500Ω1.5 10 1.5 10 1.5 7 1.5 8 1.5 6 1.5 7

NOTES:

1. See tes t circuit and waveforms.

2. Minimum l i m i ts are guaranteed but not tested on Propagation Delay s.

3. These parameters are guaranteed but not tested.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER

Pulse

Generator

D.U.T.

VCC

VIN

VOUT

50pF 500Ω

500Ω

7.0V

1.5V

DATA

INPUT

TI MI NG

INPUT

ASYNCHRONOUS CONTROL

PRESET

CLEAR

ETC.

SYNCHRO NOU S CONTRO L

tSU tH

tREM

tSU tH

HIGH-LOW-HIGH

PULSE

LOW-HIGH-LOW

PULSE

1.5V

SAME PHASE

INPU T TRA NSITION

1.5V

VOH

tPLH

OUTPUT

OPPOSITE PHASE

INPU T TRA NSITION

1.5V

tPLH tPHL

tPHL

VOL

CONTROL

INPUT

1.5V

3.5V

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

SWITCH

CLOSED

SWITCH

OPEN

VOL

0.3V

tPLZ

tPZL

tPZH tPHZ

3.5V

1.5V

ENABLE DISABLE

VOH

PRESET

CLEAR

CLOCK ENABLE

ETC.

Octal link

TEST CIRCUITS AND WAVEFORMS

PROPAGATION DELAY

TEST CIRCUITS FOR ALL OUTPUTS

ENABLE AND DISABLE TIMES

SET-UP, HOLD, AND RELEASE TIMES PULSE WIDTH

SWITCH POSITION

Test Switch

Open Drain

Disable Low Closed

Enable Low

All Other Tests Open

8-link

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse

Generator.

NOTES:

1. Diagram shown for input Control Enable-LOW and input Control

Disable-HIGH.

2. Pul se Generator for All Pulses: Rate ≤ 1.0MHz; Zo ≤ 50Ω; tF ≤ 2.5ns;

tR ≤ 2.5ns.

IDT54/74FCT827A/B/C

HIGH PERFORMANCE CMOS BUFFER MILITARY AND COMMERCIAL TEMPERATURE RANGES

CORPORATE HEADQUARTERS for SALES:

2975 Stender Way 800-345-7015 or 408-727-6116

Santa Clara, CA 95054 fax: 408-492-8674

www.idt.com*

*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

ORDERING INFORMATION

IDT XX

Tem p. Range XXXX

Device Type XX

Package X

Process

SO Com mercial Options

S ma ll O ut lin e IC ( SO2 4- 2 )

High Performance C M OS B uffer, 10-Bit

74 – 55°C to +125°C

0°C to +70°C

M ilit a r y Op tion s

CER DIP (D24-1)

CERPACK (E24-1)

Leadless Chip Carrier (L28-2)

Blank

BCommercial

MIL-STD-883, Class B

FCT

827A

827B

827C