74VHC157SJX

更新时间： 2024-09-27 22:41:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		复用器逻辑集成电路光电二极管
页数	文件大小	规格书
7页	73K
描述
Quad 2-Input Multiplexer

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中文翻译

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数据手册
替代型号

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74VHC157SJX 数据手册

November 1992

Revised April 1999

74VHC157

Quad 2-Input Multiplexer

age. This device can be used to interface 5V to 3V systems

and on two supply systems such as battery back up. This

circuit prevents device destruction due to mismatched sup-

ply and input voltages.

General Description

The VHC157 is an advanced high speed CMOS Quad 2-

Channel Multiplexer fabricated with silicon gate CMOS

technology. It achieves the high speed operation similar to

equivalent Bipolar Schottky TTL while maintaining the

CMOS low power dissipation.

Features

■ High Speed: t_PD= 4.1 ns (typ) at V_CC= 5V

■ Low power dissipation: I_CC= 4 µA (max.) at T_A= 25°C

■ High noise immunity: V_NIH= V_NIL= 28% V_CC(min.)

It consists of four 2-input digital multiplexers with common

select and enable inputs. When the ENABLE input is held

“H” level, selection of data is inhibited and all the outputs

become “L” level. The SELECT decoding determines

whether the I_0xor I_1xinputs get routed to their correspond-

■ Power down protection is provided on all inputs

■ Low noise: V_OLP= 0.8V (max.)

ing outputs.

An Input protection circuit ensures that 0V to 7V can be

applied to the input pins without regard to the supply volt-

■ Pin and function compatible with 74HC157

Ordering Code:

Order Number Package Number

Package Description

74VHC157M

74VHC157SJ

74VHC157MTC

74VHC157N

M16A

M16D

MTC16

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbols

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

I_0a–I_0d

I_1a–I_1d

Description

Source 0 Data Inputs

Source 1 Data Inputs

Enable Input

Select Input

Z_a–Z_d

Outputs

DS011536.prf

www.fairchildsemi.com

12 3 4 5 6 7

中文翻译

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74VHC157SJX 替代型号

型号	品牌	替代类型	描述	数据表
74AC157SJX	FAIRCHILD	类似代替	Quad 2-Input Multiplexer
SN74AHC157NSRE4	TI	功能相似	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

与74VHC157SJX相关器件

型号	品牌	获取价格	描述	数据表
74VHC157T	STMICROELECTRONICS	获取价格	QUAD 2 CHANNEL MULTIPLEXER
74VHC157TTR	FAIRCHILD	获取价格	QUAD 2 CHANNEL MULTIPLEXER
74VHC16	FAIRCHILD	获取价格	8-Bit Serial-In, Parallel-Out Shift Register
74VHC161	FAIRCHILD	获取价格	4-Bit Binary Counter with Asynchronous Clear
74VHC161284	FAIRCHILD	获取价格	IEEE 1284 Transceiver
74VHC161284CW	FAIRCHILD	获取价格	Line Transceiver, 1 Func, 19 Driver, 19 Rcvr
74VHC161284MEA	FAIRCHILD	获取价格	IEEE 1284 Transceiver
74VHC161284MEAX	FAIRCHILD	获取价格	IEEE 1284 Transceiver
74VHC161284MEAX_NL	FAIRCHILD	获取价格	Line Transceiver, 13 Func, 14 Driver, 13 Rcvr, CMOS, PDSO48, 0.300 INCH, MO-118, SSOP-48
74VHC161284MTD	FAIRCHILD	获取价格	IEEE 1284 Transceiver

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