Download the MM74HCT191 datasheet PDF.
This datasheet also covers the MM74HCT190 variant, as both devices belong to the same synchronous binary up/down counters family and are provided as variant models within a single manufacturer datasheet.
Description
These high speed synchronous counters utilize advanced silicon-gate CMOS technology They possess the high noise immunity and low power consumption of CMOS technology along with the speeds of low power Schottky TTL These circuits are synchronous reversible up down counters The MM54HCT191 MM74HCT191 a
Features
- Y Y
Y Y
Level changes on Enable or Down Up can be made regardless of the level of the clock Low quiescent supply current 80 mA maximum (74HCT Series) Low input current 1 mA maximum TTL compatible inputs
Connection Diagram
Dual-In-Line Package
Truth Table
Load H H L H Enable G L L X H Down Up L H X X Clock Function Count Up Count Down Load No Change
u u
X X
Order Number MM54HCT190 191 or MM74HCT190 191
TL F 5744.
- 1
C1995 National Semiconductor Corporation
TL F 5744
RRD-B30M105.
MM74HCT191 Datasheet
