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CD74HC251MTE4 PDF预览

CD74HC251MTE4

更新时间： 2024-11-26 09:52:39
品牌 Logo 应用领域
罗彻斯特 - ROCHESTER 光电二极管
页数 文件大小 规格书
16页 457K
描述
Multiplexer, HC/UH Series, 1-Func, 8 Line Input, 1 Line Output, Complementary Output, CMOS, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16

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CD74HC251MTE4 数据手册

 浏览型号CD74HC251MTE4的Datasheet PDF文件第2页浏览型号CD74HC251MTE4的Datasheet PDF文件第3页浏览型号CD74HC251MTE4的Datasheet PDF文件第4页浏览型号CD74HC251MTE4的Datasheet PDF文件第5页浏览型号CD74HC251MTE4的Datasheet PDF文件第6页浏览型号CD74HC251MTE4的Datasheet PDF文件第7页 
CD54HC251, CD74HC251,  
CD54HCT251, CD74HCT251  
Data sheet acquired from Harris Semiconductor  
SCHS169C  
High-Speed CMOS Logic  
8-Input Multiplexer, Three-State  
November 1997 - Revised October 2003  
Features  
Description  
• Selects One of Eight Binary Data Inputs  
• Three-State Output Capability  
• True and Complement Outputs  
The ’HC251 and ’HCT251 are 8-channel digital multiplexers  
with three-state outputs, fabricated with high-speed silicon-  
gate CMOS technology. Together with the low power  
consumption of standard CMOS integrated circuits, they  
possess the ability to drive 10 LSTTL loads. The three-state  
feature makes them ideally suited for interfacing with bus  
lines in a bus-oriented system.  
[ /Title  
(CD74  
HC251  
,
• Typical (Data to Output) Propagation Delay of 14ns at  
o
V
= 5V, C = 15pF, T = 25 C  
L A  
CC  
CD74  
HCT25  
1)  
/Sub-  
ject  
(High  
Speed  
CMOS  
Logic  
8-Input  
Multi-  
plexer;  
Three-  
• Fanout (Over Temperature Range)  
This multiplexer features both true (Y) and complement (Y)  
outputs as well as an output enable (OE) input. The OE must  
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads  
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads be at a low logic level to enable this device. When the OE  
input is high, both outputs are in the high-impedance state.  
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C  
• Balanced Propagation Delay and Transition Times  
When enabled, address information on the data select inputs  
determines which data input is routed to the Y and Y  
outputs. The ’HCT251 logic family is speed, function, and  
pin-compatible with the standard ’LS251.  
• Significant Power Reduction Compared to LSTTL  
Logic ICs  
Ordering Information  
• Alternate Source is Philips  
• HC Types  
TEMP. RANGE  
o
- 2V to 6V Operation  
PART NUMBER  
CD54HC251F3A  
CD54HCT251F3A  
CD74HC251E  
( C)  
PACKAGE  
16 Ld CERDIP  
16 Ld CERDIP  
16 Ld PDIP  
16 Ld SOIC  
16 Ld SOIC  
16 Ld SOIC  
16 Ld PDIP  
16 Ld SOIC  
16 Ld SOIC  
16 Ld SOIC  
- High Noise Immunity: N = 30%, N = 30% of V  
CC  
IL  
IH  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
-55 to 125  
at V  
= 5V  
CC  
• HCT Types  
- 4.5V to 5.5V Operation  
- Direct LSTTL Input Logic Compatibility,  
CD74HC251M  
V = 0.8V (Max), V = 2V (Min)  
IL IH  
CD74HC251MT  
CD74HC251M96  
CD74HCT251E  
CD74HCT251M  
CD74HCT251MT  
CD74HCT251M96  
- CMOS Input Compatibility, I ≤ 1µA at V , V  
l
OL OH  
Pinout  
CD54HC251, CD54HCT251  
(CERDIP)  
CD74HC251, CD74HCT251  
(PDIP, SOIC)  
TOP VIEW  
NOTE: When ordering, use the entire part number. The suffix 96  
denotes tape and reel. The suffix T denotes a small-quantity reel of  
250.  
I
I
I
I
1
2
3
4
5
6
7
8
16 V  
CC  
3
2
1
0
15 I  
14 I  
13 I  
12 I  
4
5
6
7
Y
Y
11 S0  
10 S1  
OE  
9
S2  
GND  
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.  
Copyright © 2003, Texas Instruments Incorporated  
1
1234567...16

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