DESCRIPTION

The UCD4040B are ripple-carry binary counters. All counter

stages are master-slave flip-flops. The state of a counter advances

one count on the negative transition of each input pulse; a high level

on the RESET line resets the counter to its all zeros state. Schmitt

trigger action on the input-pulse line permits unlimited rise and fall

times. All inputs and outputs are buffered.

FEATURES

* Medium-speed operation Fully static operation

* Buffered inputs and outputs

* 100% tested for quiescent current at 20V

* Standardized, symmetrical output characteris

* Fully static operation

* Common reset

* 5V, 10V, and 15V parametric ratings

* Noise margin (over full package-tempera ture range):

1V at VDD=5V

2V at VDD=10V

2.5V at VDD=15V