DESCRIPTION
These devices are programmable frequency dividers. The types have two clock inputs, either one may be used for clock gating. (see the function table). The HC292/7292 can divide from 22 to 231, and the HC294/7294 can divide from 22 to 215. The PIN CONNECTION (top view) HC292 HC7292 HC294 HC7294 HC292 HC7292 HC294 HC7294 types feature an active-low clear input to initialize the state of all flip-flops. To facilitate incoming inspection, test points are provided. (TP1, TP2 and TP3 on the HC292/7292 and TP on the HC294/7294). All inputs are equipped with protection circuits against static discharge and transient excess voltage. HC292/294 have Q output with ”Totem pole” configuration and test point TP with ”Open Drain” output configuration. HC7292/7294 have all outputs ”Totem Pole”. October 1993 1/14 M54/M74HC292/7292/294/7294 INPUT AND OUTPUT EQUIVALENT CIRCUIT (TOTEM POLE OUTPUT) INPUT AND OUTPUT EQUIVALENT CIRCUIT (OPEN DRAIN OUTPUT, HC292/294) PIN DESCRIPTION
(HC292/7292) PI...
STMicroelectronics
