HD74LS251

更新时间： 2024-09-23 05:35:15

品牌	Logo	应用领域
瑞萨 - RENESAS		复用器闪光灯
页数	文件大小	规格书
6页	180K
描述
1 of 8 Data Selector / Multiplexer (with strobe and three-state outputs)

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HD74LS251 数据手册

HD74LS251

1 of 8 Data Selector / Multiplexer

(with strobe and three-state outputs)

REJ03D0467–0300

Rev.3.00

Jul.15.2005

This data selector / multiplexer contains full on-chip binary decoding to select one-of-eight data sources and features a

strobe-controlled 3-state output.

The strobe must be at a low logic level to enable this device. The 3-state outputs permit a number of outputs to be

connected to a common bus.

When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors

of each totem-pole output are off, and the output neither drives nor loads the bus significantly. When the strobe is low,

the outputs are activated and operate as standard TTL totem-pole outputs.

To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output

control circuitry is designed so that the average output disable time is shorter than the average output enable time.

Features

•

Ordering Information

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

Part Name

Package Type

DILP-16 pin

PRDP0016AE-B

(DP-16FV)

HD74LS251P

HD74LS251FPEL

—

PRSP0016DH-B

(FP-16DAV)

SOP-16 pin (JEITA)

EL (2,000 pcs/reel)

Note: Please consult the sales office for the above package availability.

Pin Arrangement

V_CC

Data Inputs

Outputs

Strobe

GND

Data Select

(Top view)

Rev.3.00, Jul.15.2005, page 1 of 5

12 3 4 5 6

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与HD74LS251相关器件

型号	品牌	获取价格	描述	数据表
HD74LS251FP	RENESAS	获取价格	LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, FP-16DA
HD74LS251FP	HITACHI	获取价格	Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PD
HD74LS251FPEL	RENESAS	获取价格	1 of 8 Data Selector / Multiplexer (with strobe and three-state outputs)
HD74LS251FP-EL	HITACHI	获取价格	Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, TTL, PD
HD74LS251FP-EL	RENESAS	获取价格	LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, FP-16DA
HD74LS251P	RENESAS	获取价格	1 of 8 Data Selector / Multiplexer (with strobe and three-state outputs)
HD74LS251P-E	RENESAS	获取价格	暂无描述
HD74LS251RP	HITACHI	获取价格	暂无描述
HD74LS251RP	RENESAS	获取价格	LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, FP-16DN
HD74LS251RP-EL	HITACHI	获取价格	暂无描述