Datasheet > 74LS290D

74LS290D

更新时间： 2024-11-19 09:10:15

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		/
页数	文件大小	规格书
8页	1227K
描述
Decade Counter,

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74LS290D 数据手册

REI Datasheet

SN54290, SN54293, SN54LS290, SN54LS293

SN74290, SN74293, SN74LS290, SN74LS293

Decade and 4-Bit Binary Counters

The SN54290/SN74290, SN54LS290/SN74LS290, SN54293/SN74293, and SN54LS293/

SN74LS293 counters are electrically and functionally identical to the SN5490A/SN7490A,

SN54LS90/SN74LS90, SN5493A/SN7493A, and SN54LS93/SN74LS93, respectively. Only the

arrangement of the terminals has been changed for the ‘290, ‘LS290, ‘293, and ‘LS293.

Each of these monolithic counters contains four master-slave ﬂip-ﬂops and additional gating to

provide a divide-by-two counter and a three-stage binary counter for which the count cycle length

is divide-by-ﬁve for the ‘290 and ‘LS290 and divide-by-eight for the ‘293 and ‘LS293. All of these

counters have a gated zero reset and the ‘290 and ‘LS290 also have gated set-to-nine inputs for use

in BCD nine’s complement applications.

Quality Overview

Rochester Electronics

Manufactured Components

•

ISO-9001

AS9120 certiﬁcation

Qualiﬁed Manufacturers List (QML) MIL-PRF-38535

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.

•

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.

Parts are tested using original factory

test programs or Rochester developed

test solutions to guarantee product

meets or exceeds the OCM data sheet.

RochesterElectronics, LLCiscommittedtosupplying

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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与74LS290D相关器件

型号	品牌	获取价格	描述	数据表
74LS290DCQM	FAIRCHILD	获取价格	Decade Counter, Asynchronous, Up Direction, TTL, CDIP14,
74LS290PC	FAIRCHILD	获取价格	暂无描述
74LS290PCQM	FAIRCHILD	获取价格	Decade Counter, Asynchronous, Up Direction, TTL, PDIP14,
74LS290PCQR	FAIRCHILD	获取价格	Decade Counter, Asynchronous, Up Direction, TTL, PDIP14,
74LS293	HITACHI	获取价格	4-bit Binary Counters
74LS293	TI	获取价格	DECADE AND 4-BIT BINARY COUNTERS
74LS293	MOTOROLA	获取价格	DECADE COUNTER; 4-BIT BINARY COUNTER
74LS293	ONSEMI	获取价格	DECADE COUNTER; 4-BIT BINARY COUNTER
74LS293A	NXP	获取价格	IC LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDIP14, Counter
74LS293DCQM	FAIRCHILD	获取价格	Binary Counter, Asynchronous, Up Direction, TTL, CDIP14,

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