Integrated Device Technology, Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

MAY 1992

©1992 Integrated Device Technology, Inc.

7.10

DSC-4609/2

®

IDT54/74FCT273

IDT54/74FCT273A

IDT54/74FCT273C

FAST CMOS

OCTAL FLIP-FLOP

WITH MASTER RESET

FEATURES:

• IDT54/74FCT273 equivalent to FAST

™ speed;

• IDT54/74FCT273A 45% faster than FAST

• IDT54/74FCT273C 55% faster than FAST

• Equivalent to FAST output drive over full temperature

and voltage supply extremes

• CMOS power levels (1mW typ. static)

• TTL input and output level compatible

• CMOS output level compatible

• Substantially lower input current levels than FAST

(5

µA max.)

• Octal D flip-flop with Master Reset

• JEDEC standard pinout for DIP and LCC

• Product available in Radiation Tolerant and Radiation

Enhanced versions

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

DESCRIPTION:

The IDT54/74FCT273/A/C are octal D flip-flops built using

an advanced dual metal CMOS technology.

The IDT54/

74FCT273/A/C have eight edge-triggered D-type flip-flops

with individual D inputs and O outputs. The common buffered

Clock (CP) and Master Reset (

MR) inputs load and reset

(clear) all flip-flops simultaneously.

The register is fully edge-triggered. The state of each D

input, one set-up time before the LOW-to-HIGH clock

transition, is transferred to the corresponding flip-flop’s O

output.

All outputs will be forced LOW independently of Clock or

Data inputs by a LOW voltage level on the

MR input. The

device is useful for applications where the true output only is

required and the Clock and Master Reset are common to all

storage elements.

FUNCTIONAL BLOCK DIAGRAM

2558 drw 01

D

CP

Q

D

CP

Q

D

CP

Q

D

CP

Q

D

CP

Q

D

CP

Q

D

CP

Q

D

CP

Q

MR

CP

PIN CONFIGURATIONS

5

6

7

8

9

10

1

2

3

4

20

19

18

17

16

15

14

13

Vcc

12

11

MR

CP

GND

P20-1

D20-1

SO20-2

&

E20-1

2558 drw 02

INDEX

15

14

18

17

16

5

6

7

8

4

L20-2

9 10 11 12 13

32

1

20 19

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

FAST is a registered trademark of National Semiconductor Co.

DIP/SOIC/CERPACK

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