54LS191J/B datasheet, PDF - EEWORLD Datasheet

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54LS191J/B: DescriptionDecade Counter,; Categorylogic logic; File Size889KB，15 Pages; ManufacturerRochester Electronics; Websitehttps://www.rocelec.com/

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54LS191J/B Overview

Decade Counter,

54LS191J/B Parametric

Parameter Name	Attribute value
Maker	Rochester Electronics
Reach Compliance Code	unknown
Logic integrated circuit type	DECADE COUNTER
Base Number Matches	1

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REI Datasheet

SN54190, SN54191, SN54LS190, SN54LS191

SN74190, SN74191, SN74LS190, SN74LS191

Synchronous Up/Down Counters with Down/Up Mode Control

The ‘190, ‘LS190, ‘191, and ‘LS191 are synchronous, reversible up/down counters having a

complexity of 58 equivalent gates. The ‘191 and ‘LS191 are 4-bit binary counters and the ‘190

and ‘LS190 are BCD counters. Synchronous operation is provided by having all flip-flops clocked

simultaneously so that the outputs change coincident with each other when so instructed by the

steering logic. This mode of operation eliminates the output counting spikes normally associated with

asynchronous (ripple clock) counters.

Rochester Electronics

Manufactured Components

Rochester branded components are

manufactured using either die/wafers

purchased from the original suppliers

or Rochester wafers recreated from the

original IP. All recreations are done with

the approval of the OCM.

Parts are tested using original factory

test programs or Rochester developed

test solutions to guarantee product

meets or exceeds the OCM data sheet.

Quality Overview

•

ISO-9001

• AS9120 certification

• Qualified Manufacturers List (QML) MIL-PRF-38535

• Class Q Military

•

Class V Space Level

• Qualified Suppliers List of Distributors (QSLD)

• Rochester is a critical supplier to DLA and

meets all industry and DLA standards.

Rochester Electronics, LLC is committed to supplying

products that satisfy customer expectations for

quality and are equal to those originally supplied by

industry manufacturers.

The original manufacturer’s datasheet accompanying this document reflects the performance

and specifications of the Rochester manufactured version of this device. Rochester Electronics

guarantees the performance of its semiconductor products to the original OEM specifications.

‘Typical’ values are for reference purposes only. Certain minimum or maximum ratings may be

based on product characterization, design, simulation, or sample testing.

To learn more, please visit

www.rocelec.com

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