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IDT54FCT273TL

Fast CMOS octal D flip-flop with master reset

Integrated Device Technology 

IDT54/74FCT273T/AT/CT FAST CMOS

OCTAL D FLIP-FLOP WITH MASTER RESET

MILITARY AND COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

IDT54/74FCT273T IDT54/74FCT273AT IDT54/74FCT273CT

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol

Parameter

tPLH Propagation Delay

tPHL CP to ON

tPHL Propagation Delay

MR to ON

tSU Set-up Time HIGH or LOW

DN to CP

tH

Hold Time HIGH or LOW DN

to CP

tW CP Pulse Width HIGH or

LOW

tW

MR Pulse Width LOW

Condition(1)

CL = 50pF

RL = 500Ω

Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max.

2.0 13.0 2.0 15.0 2.0 7.2 2.0 8.3 2.0 5.8 2.0 6.5

Unit

ns

2.0 13.0 2.0 15.0 2.0 7.2 2.0 8.3 2.0 6.1 2.0 6.8 ns

3.0 — 3.5 — 2.0 — 2.0 — 2.0 — 2.0 — ns

2.0 — 2.0 — 1.5 — 1.5 — 1.5 — 1.5 — ns

7.0 — 7.0 — 6.0 — 6.0 — 6.0 — 6.0 — ns

7.0 — 7.0 — 6.0 — 6.0 — 6.0 — 6.0 — ns

tREM Recovery Time MR

to CP

4.0 — 5.0 — 2.0 — 2.5 — 2.0 — 2.5 — ns

NOTES:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

2568 tbl 07

6.10

5

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