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74HC191 Datasheet Presettable Synchronous 4-bit Binary Up/down Counter

Manufacturer: Nexperia

Overview: 74HC191 Presettable synchronous 4-bit binary up/down counter Rev. 7 — 14 March 2024 Product data sheet 1.

Datasheet Details

Part number 74HC191
Manufacturer Nexperia
File Size 293.43 KB
Description Presettable synchronous 4-bit binary up/down counter
Datasheet 74HC191-nexperia.pdf

General Description

The 74HC191 is an asynchronously presettable 4-bit binary up/down counter.

It contains four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation.

Asynchronous parallel load capability permits the counter to be preset to any desired value.

Key Features

  • Wide supply voltage range from 2.0 to 6.0 V.
  • CMOS low power dissipation.
  • High noise immunity.
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
  • CMOS input levels.
  • Synchronous reversible counting.
  • Asynchronous parallel load.
  • Count enable control for synchronous expansion.
  • Single up/down control input Nexperia 74HC191 Presettable synchronous 4-bit binary up/down counter.
  • Complies with JEDEC.

74HC191 Distributor