74F569 datasheet(9/14 Pages) PHILIPS

9 / 14 page

Philips Semiconductors

Product specification

74F569

4-bit bidirectional binary synchronous counter (3-State)

1996 Jan 05

AC WAVEFORMS (Continued)

For all waveforms, VM = 1.5V

The shaded areas indicate when the input is permitted to change for predictable output performance.

tPLH

tPHL

CET, SR, PE

TC, CC

SF01065

Waveform 3. Propagation Delays CET to TC

and SR or PE to CC

tPLH

tPHL

U/D

TC, CC

SF01066

Waveform 4. Propagation Delays U/D to TC and CC

tPHL

SF01067

tREC

tW(L)

Waveform 5. Master Reset Pulse Width, Master Reset to

Output Delay and Master Reset to Clock Recovery Time

ts(L)

ts(H)

th = 0

SF01068

DATA

STABLE

Waveform 6. Parallel Data and Parallel Enable Setup

and Hold Times

ts(L)

th(L)

th(H)

CET

CEP

ts(H)

CHANGE

COUNT

NO CHANGE

SF01069

Waveform 7. Count Enable Data Setup and Hold Times

ts(L)

th(L)

th(H)

U/D

ts(H)

COUNT DOWN

COUNT UP

SF01070

Waveform 8. Up/Down Control Setup and Hold Times

ts(L)

th(L)

th(H)

ts(H)

SF01071

Waveform 9. Synchronous Reset Setup and Hold Times

tPHZ

tPZH

VOH -0.3V

SF01084

Waveform 10. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

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