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CD74HCT253 PDF预览

CD74HCT253

更新时间: 2024-11-05 23:04:31
品牌 Logo 应用领域
德州仪器 - TI 复用器
页数 文件大小 规格书
7页 61K
描述
High Speed CMOS Logic Dual 4-Input Multiplexer

CD74HCT253 数据手册

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CD74HC253,  
CD74HCT253  
Data sheet acquired from Harris Semiconductor  
SCHS170  
High Speed CMOS Logic  
Dual 4-Input Multiplexer  
November 1997  
at V  
= 5V  
Features  
CC  
• HCT Types  
• Common Select Inputs  
• Separate Output-Enable Inputs  
• Three-State Outputs  
- 4.5V to 5.5V Operation  
[ /Title  
(CD74  
HC253  
,
CD74  
HCT25  
3)  
- Direct LSTTL Input Logic Compatibility,  
V = 0.8V (Max), V = 2V (Min)  
IL IH  
- CMOS Input Compatibility, I 1µA at V , V  
OL OH  
l
• Fanout (Over Temperature Range)  
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads  
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads  
Description  
The Harris CD74HC253 and CD74HCT253 are dual 4-to-1  
line selector/multiplexers having three-state outputs. One of  
four sources for each section is selected by the common  
select inputs, S0 and S1. When the output enable (1OE,  
2OE) is HIGH, the output is in the high-impedance state.  
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C  
• Balanced Propagation Delay and Transition Times  
/Sub-  
ject  
• Significant Power Reduction Compared to LSTTL  
Logic ICs  
(High  
Speed  
CMOS  
Logic  
Dual  
• HC Types  
Ordering Information  
- 2V to 6V Operation  
PKG.  
NO.  
- High Noise Immunity: N = 30%, N = 30% of V  
IL IH CC  
o
PART NUMBER TEMP. RANGE ( C) PACKAGE  
4-Input  
Multi-  
plexer)  
Pinout  
CD74HC253, CD74HCT253  
(PDIP, SOIC)  
TOP VIEW  
1OE  
S1  
1
2
3
4
5
6
7
8
16 V  
CC  
15 2OE  
14 S0  
1I  
1I  
1I  
1I  
3
2
1
0
13 2I  
12 2I  
11 2I  
10 2I  
3
2
1
0
1Y  
9
2Y  
GND  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
File Number 1673.1  
Copyright © Harris Corporation 1997  
1

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