MILITARYANDINDUSTRIALTEMPERATURERANGES

2

IDT54/74FCT273T/AT/CT

FASTCMOSOCTALDFLIP-FLOPWITHMASTERRESET

PIN CONFIGURATION

Symbol

Description

Max

Unit

–0.5 to +7

V

V

Storage Temperature

–65 to +150

°C

DC Output Current

–60 to +120

mA

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 conditions above those indicated in the operational

sections 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 +0.5V unless otherwise noted.

2. Inputs and Vcc terminals only.

3. Output and I/O terminals only.

Pin Names

Description

Dx

Data Inputs

MR

Master Reset (Active LOW)

C P

Clock Pulse Input (Active Rising Edge)

Ox

Data Outputs

PIN DESCRIPTION

Symbol

Conditions

Typ.

Max.

Unit

Input Capacitance

6

10

pF

Output Capacitance

8

12

pF

NOTE:

1. This parameter is measured at characterization but not tested.

LCC

TOP VIEW

CERDIP/ SOIC/ SSOP/ QSOP

TOP VIEW

Inputs

Outputs

Operating Mode

MR

CP

Dx

Ox

Reset(Clear)

L

X

X

L

Load "1"

L

↑

hH

Load "0"

H

↑

lL

2

3

1

16

15

14

11

19

18

20

17

13

12

5

6

7

4

8

9

10

GND

CP

MR

1

2

3

4

5

7

9

6

8

10

11

12

13

14

15

16

17

18

19

20

INDEX

NOTE:

1. H = HIGH voltage level steady state

h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock

transition

L = LOW voltage level steady state

I = LOW voltage level one set-up time prior to the LOW-to-HIGH clock

transition

X = Don’t Care

↑ = LOW-to-HIGH Clock Transition