Philips Semiconductors

Product specification

74F569

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

1996 Jan 05

9

AC WAVEFORMS (Continued)

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

CET, SR, PE

TC, CC

SF01065

Waveform 3. Propagation Delays CET to TC

and SR or PE to CC

U/D

TC, CC

SF01066

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

SF01067

Qn

CP

MR

Waveform 5. Master Reset Pulse Width, Master Reset to

Output Delay and Master Reset to Clock Recovery Time

CP

PE

SF01068

DATA

STABLE

Waveform 6. Parallel Data and Parallel Enable Setup

and Hold Times

CP

CET

CEP

NO

CHANGE

COUNT

NO CHANGE

SF01069

Waveform 7. Count Enable Data Setup and Hold Times

CP

U/D

COUNT DOWN

COUNT UP

SF01070

Waveform 8. Up/Down Control Setup and Hold Times

CP

SR

SF01071

Waveform 9. Synchronous Reset Setup and Hold Times

OE

Qn

0V

SF01084

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

Output Disable Time from High Level