74HC191 Presettable synchronous 4-bit binary up/down counter

nexperia

Description

74HC191 Presettable synchronous 4-bit binary up/down counter Rev.7 * 14 March 2024 Product data sheet 1.General .
The 74HC191 is an asynchronously presettable 4-bit binary up/down counter.

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Datasheet Specifications

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

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 lo

Applications

* Fig. 6 shows a method of causing state changes to occur simultaneously in all stages. The RC outputs propagate the carry/borrow signals in ripple fashion and all clock inputs are driven in parallel. In this configuration the duration of the clock LOW state must be long enough to allow the negative-

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74HC191 Presettable synchronous 4-bit binary down counter nexperia

nexperia 74HC191-like datasheet