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MC74VHCT257AM

更新时间： 2024-11-04 20:30:19
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 光电二极管
页数 文件大小 规格书
8页 206K
描述
Multiplexer, AHCT/VHCT Series, 2-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO14, EIAJ, SOIC-14

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MC74VHCT257AM 数据手册

 浏览型号MC74VHCT257AM的Datasheet PDF文件第2页浏览型号MC74VHCT257AM的Datasheet PDF文件第3页浏览型号MC74VHCT257AM的Datasheet PDF文件第4页浏览型号MC74VHCT257AM的Datasheet PDF文件第5页浏览型号MC74VHCT257AM的Datasheet PDF文件第6页浏览型号MC74VHCT257AM的Datasheet PDF文件第7页 
The MC74VHCT257A is an advanced high speed CMOS quad  
2–channel multiplexer fabricated with silicon gate CMOS technology.  
It achieves high speed operation similar to equivalent Bipolar  
Schottky TTL while maintaining CMOS low power dissipation.  
It consists of four 2–input digital multiplexers with common select  
(S) and enable (OE) inputs. When (OE) is held High, selection of data  
is inhibited and all the outputs go Low.  
The select decoding determines whether the A or B inputs get routed  
to the corresponding Y outputs.  
The VHCT inputs are compatible with TTL levels. This device can be  
used as a level converter for interfacing 3.3 V to 5.0 V because it has full  
5 V CMOS level output swings.  
http://onsemi.com  
MARKING DIAGRAMS  
14  
1
8
7
VHCT257A  
AWLYWW  
SOIC–14  
D SUFFIX  
CASE 751A  
14  
8
The VHCT257A input structures provide protection when voltages  
between 0 V and 5.5 V are applied, regardless of the supply voltage. The  
VHCT  
257A  
output structures also provide protection when V = 0 V. These input and  
CC  
output structures help prevent device destruction caused by supply  
voltage—input/output voltage mismatch, battery backup, hot insertion, etc.  
The internal circuit is composed of three stages, including a buffer  
output which provides high noise immunity and stable output. The inputs  
tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V  
systems.  
TSSOP–14  
DT SUFFIX  
CASE 948G  
AWLYWW  
7
1
A
= Assembly Location  
= Year  
• High Speed: t  
= 4.1ns (Typ) at V  
= 5V  
WL = Wafer Lot  
Y
WW = Work Week  
PD  
• Low Power Dissipation: I  
CC  
= 4µA (Max) at T = 25°C  
CC  
A
• TTL–Compatible Inputs: V = 0.8 V; V = 2.0 V  
IL IH  
• Power Down Protection Provided on Inputs and Outputs  
• Balanced Propagation Delays  
• Designed for 2V to 5.5V Operating Range  
14  
8
VHCT257A  
ALYW  
SOIC EIAJ–14  
M SUFFIX  
CASE 965  
• Low Noise: V  
= 0.8V (Max)  
OLP  
7
1
• Pin and Function Compatible with Other Standard Logic Families  
• Latchup Performance Exceeds 300mA  
A
L
= Assembly Location  
= Wafer Lot  
• ESD Performance: HBM > 2000V; Machine Model > 200V  
Y
= Year  
PIN ASSIGNMENT  
W = Work Week  
V
S
1
2
16  
CC  
A0  
15 OE  
ORDERING INFORMATION  
B0  
Y0  
A3  
B3  
Y3  
A2  
B2  
Y2  
3
4
14  
13  
Device  
Package  
Shipping  
MC74VHCT257AD  
SOIC–14  
55 Units/Rail  
A1  
5
6
12  
11  
MC74VHCT257ADT TSSOP–14  
SOIC  
96 Units/Rail  
50 Units/Rail  
B1  
7
8
10  
Y1  
MC74VHCT257AM  
EIAJ–14  
GND  
9
This document contains information on a new product. Specifications and information  
herein are subject to change without notice.  
Semiconductor Components Industries, LLC, 2000  
1
Publication Order Number:  
May, 2000 – Rev. 0  
MC74VHCT257A/D  
12345678

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