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74AC11253N

更新时间： 2024-11-09 13:02:39
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德州仪器 - TI 复用器输出元件
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74AC11253N 数据手册

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54AC11253, 74AC11253  
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SCAS041A – MAY 1988 – REVISED APRIL 1993  
54AC11253 . . . J PACKAGE  
74AC11253 . . . D OR N PACKAGE  
(TOP VIEW)  
• Permits Multiplexing From N Lines to  
One Line  
• Performs Parallel-to-Serial Conversion  
• Flow-Through Architecture Optimizes  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
1C0  
1C1  
1C2  
1C3  
A
B
1Y  
GND  
2Y  
1G  
PCB Layout  
• Center-Pin V  
and GND Configurations  
Minimize High-Speed Switching Noise  
CC  
• EPIC (Enhanced-Performance Implanted  
V
CC  
CMOS) 1- m Process  
2C0  
2C1  
2C2  
2G  
2C3  
• Package Options Include Plastic Small-  
Outline Packages, Ceramic Chip Carriers,  
and Standard Plastic and Ceramic 300-mil  
DIPs  
54AC11253 . . . FK PACKAGE  
(TOP VIEW)  
description  
Each of these data selectors/multiplexers  
contains inverters and drivers to supply full binary  
decoding data selection to the AND-OR gates.  
Separate output control inputs are provided for  
each of the two four-line sections.  
3
2
1
20 19  
18  
2C1  
2C2  
NC  
1C1  
1C0  
NC  
A
4
5
6
7
8
17  
16  
15  
14  
2C3  
2G  
The three-state outputs can interface with and  
drive data lines of bus-organized systems. With  
all but one of the common outputs disabled (at a  
high-impedance state), the low-impedance of the  
single enabled output will drive the bus line to a  
high or low logic level. Each output has its own  
strobe (G). The output is disabled when its strobe  
is high.  
B
9 10 11 12 13  
NC – No internal connection  
†
logic symbol  
The 54AC11253 is characterized for operation  
over the full military temperature range of – 55°C  
to 125°C. The 74AC11253 is characterized for  
operation from – 40°C to 85°C.  
1
2
0
1
0
3
A
B
G
MUX  
6
1G  
1C0  
1C1  
1C2  
1C3  
2G  
EN  
0
FUNCTION TABLE  
16  
15  
14  
13  
7
SELECT  
INPUTS  
OUTPUT  
CONTROL  
G
DATA INPUTS  
OUTPUT  
Y
3
5
1
2
3
1Y  
2Y  
B
X
L
A
X
L
C0 C1 C2 C3  
X
L
X
X
X
L
X
X
X
X
X
L
X
X
X
X
X
X
X
L
H
L
L
L
L
L
L
L
L
Z
L
11  
10  
9
L
L
H
X
X
X
X
X
X
H
L
2C0  
2C1  
2C2  
2C3  
L
H
H
L
L
H
X
X
X
X
H
L
H
H
H
H
8
L
H
X
X
H
L
†
H
H
This symbol is in accordance with ANSI/IEEE Std 91-1984  
and IEC Publication 617-12.  
Pin numbers shown are for the D, J, and N packages.  
H
H
Address inputs A and B are common to both sections.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1993, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
2–1  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567

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74AC11253N 替代型号

型号 品牌 替代类型 描述 数据表
CD74HCT253E TI

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CD74HCT253EE4 TI

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