HD74HC257

更新时间： 2024-11-29 05:35:11

品牌	Logo	应用领域
瑞萨 - RENESAS		复用器
页数	文件大小	规格书
8页	106K
描述
Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)

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HD74HC257 数据手册

HD74HC257

Quad. 2-to-1-line Data Selectors/Multiplexers

(with noninverted 3-state outputs)

REJ03D0601–0200

(Previous ADE-205-478)

Rev.2.00

Jan 31, 2006

Description

The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in

a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent

into a high impedance state. When the output control line is low, the select input chooses whether the A or B input is

used.

Features

•

High Speed Operation: t_pd(Data to Y) = 10.5 ns typ (C_L= 50 pF)

High Output Current: Fanout of 15 LSTTL Loads

Wide Operating Voltage: V_CC= 2 to 6 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I_CC(static) = 4 µA max (Ta = 25°C)

Ordering Information

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

Part Name

HD74HC257P

Package Type

DILP-16 pin

PRDP0016AE-B

(DP-16FV)

—

PRSP0016DH-B

(FP-16DAV)

HD74HC257FPEL SOP-16 pin (JEITA)

HD74HC257RPEL SOP-16 pin (JEDEC)

EL (2,000 pcs/reel)

EL (2,500 pcs/reel)

PRSP0016DG-A

(FP-16DNV)

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

Function Table

Inputs

Output

Output Control

Select

High impedance

Notes H: high level, L: low level, X: irrelevant

Rev.2.00 Jan 31, 2006 page 1 of 7

12 3 4 5 6 7 8

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HD74HC257P-E	RENESAS	获取价格	暂无描述
HD74HC257RP	RENESAS	获取价格	HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, FP-16DN
HD74HC257RPEL	RENESAS	获取价格	Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)
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HD74HC258	HITACHI	获取价格	Quad. 2-to-1-line Data Selectors/Multiplexers(with 3-state outputs)