Philips Semiconductors

Product specification

74F169

4-bit up/down binary synchronous counter

1996 Jan 05

8

AC WAVEFORMS

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

CP

TC

SF00791A

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

U/D

TC

SF00793

Waveform 3. Propagation Delay U/D Input to

Terminal Count Output

CPn

CEP

CET

NO

CHANGE

COUNT

NO CHANGE

SF00795

Waveform 5. Count Enable Setup and Hold Times

CET

TC

SF00792

Waveform 2. Propagation Delays CET Input to

Terminal Count Output

CPn

PE

SF00794

Waveform 4. Parallel Data and Parallel Enable

Setup and Hold Times

CPn

U/D

COUNT UP

COUNT DOWN

SF00796

Waveform 6. Up/Down Control Setup and Hold Times