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MM74HCT191 - Synchronous Binary Up/Down Counters

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.

General 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

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MM74HCT190_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription for MM74HCT191 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for MM74HCT191. For precise diagrams, and layout, please refer to the original PDF.

MM54HCT190 MM74HCT190 Synchronous Decade Up Down Counters with Mode Control MM54HCT191 MM74HCT191 Synchronous Binary Up Down Counters with Mode Control January 1988 MM54H...

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nchronous Binary Up Down Counters with Mode Control January 1988 MM54HCT190 MM74HCT190 Synchronous Decade Up Down Counters with Mode Control MM54HCT191 MM74HCT191 Synchronous Binary Up Down Counters with Mode Control General 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 are 4-bit binary counters and the MM54HCT190 MM74HCT190 are BCD counters Synchronous operation