SN74AS257

更新时间： 2024-11-13 23:03:11

品牌	Logo	应用领域
德州仪器 - TI		复用器输出元件
页数	文件大小	规格书
9页	141K
描述
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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数据手册

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SN74AS257 数据手册

SN54ALS257A, SN54ALS258A, SN74ALS257A, SN74ALS258A, SN74AS257, SN74AS258

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

WITH 3-STATE OUTPUTS

SDAS124C – APRIL 1982 – REVISED AUGUST 1996

SN54ALS257A, SN54ALS258A . . . J PACKAGE

SN74ALS257A, SN74ALS258A, SN74AS257,

3-State Outputs Interface Directly With

System Bus

SN74AS258 . . . D OR N PACKAGE

Provide Bus Interface From Multiple

Sources in High-Performance Systems

(TOP VIEW)

A/B

GND

15 OE

Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) 300-mil DIPs

12 4Y

10 3B

description

These data selectors/multiplexers are designed

to multiplex signals from 4-bit data sources to

4-outputdatalinesinbus-organizedsystems. The

3-state outputs do not load the data lines when the

output-enable (OE) input is at a high logic level.

SN54ALS257A, SN54ALS258A . . . FK PACKAGE

(TOP VIEW)

The SN54ALS257A and SN54ALS258A are

characterized for operation over the full military

temperature range of –55°C to 125°C. The

SN74ALS257A, SN74ALS258A, SN74AS257,

and SN74AS258 are characterized for operation

from 0°C to 70°C.

1 20 19

9 10 11 12 13

NC – No internal connection

FUNCTION TABLE

OUTPUT Y

SN54ALS257A SN54ALS258A

INPUTS

DATA

SN74ALS257A

SN74AS257

SN74ALS258A

SN74AS258

OE A/B

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...9

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与SN74AS257相关器件

型号	品牌	获取价格	描述	数据表
SN74AS257D	TI	获取价格	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74AS257D3	TI	获取价格	IC,LOGIC MUX,QUAD,2-INPUT,AS-TTL,SOP,16PIN,PLASTIC
SN74AS257DE4	ROCHESTER	获取价格	Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16, GRE
SN74AS257DG4	ROCHESTER	获取价格	Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16, GRE
SN74AS257DP3	TI	获取价格	IC,LOGIC MUX,QUAD,2-INPUT,AS-TTL,SOP,16PIN,PLASTIC
SN74AS257DRE4	ROCHESTER	获取价格	Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16, GRE
SN74AS257DRE4	TI	获取价格	IC AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, SOIC
SN74AS257DRG4	TI	获取价格	AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, SOIC-16
SN74AS257FN-00	TI	获取价格	AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PQCC20
SN74AS257J	TI	获取价格	IC,LOGIC MUX,QUAD,2-INPUT,AS-TTL,DIP,16PIN,CERAMIC

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