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SN74ALS253NSRE4 PDF预览

SN74ALS253NSRE4

更新时间: 2024-01-27 21:01:22
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SN74ALS253NSRE4 数据手册

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ꢀꢁ ꢂꢃ ꢄꢅ ꢀ ꢆꢂ ꢇ ꢈ ꢉꢀ ꢁꢊ ꢃꢄꢅ ꢀ ꢆ ꢂ ꢇ ꢈꢉꢀ ꢁꢊꢃ ꢄ ꢀꢆ ꢂꢇ ꢄ  
ꢋꢌꢄ ꢅꢉꢍ ꢎꢏ ꢐ ꢎꢃ ꢉꢋ ꢄꢑꢄꢉꢀ ꢒꢅ ꢒꢓꢑꢏ ꢔꢀꢕ ꢖꢌ ꢅꢑ ꢗꢘ ꢅꢒ ꢙꢒ ꢔ ꢀ  
ꢚ ꢗꢑ ꢛꢉ ꢇ ꢎꢀꢑꢄꢑ ꢒꢉ ꢏꢌ ꢑꢘ ꢌꢑ ꢀ  
SDAS216A − APRIL 1982 − REVISED DECEMBER 1994  
SN54ALS253 . . . J PACKAGE  
SN74ALS253, SN74AS253A . . . D OR N PACKAGE  
(TOP VIEW)  
3-State Versions of the ALS153 and  
SN74AS153  
Permits Multiplexing From n Lines to  
One Line  
1OE  
B
V
CC  
2OE  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Performs Parallel-to-Serial Conversion  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
1C3  
1C2  
1C1  
1C0  
1Y  
A
2C3  
2C2  
2C1  
2C0  
2Y  
description  
GND  
These data selectors/multiplexers contain  
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 4-line sections.  
SN54ALS253 . . . FK PACKAGE  
(TOP VIEW)  
The 3-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 drives the bus line to a high  
or low logic level. Each output has its own  
output-enable (OE) input. The output is disabled  
when OE is high.  
3
2
1
20 19  
18  
1C3  
1C2  
NC  
A
4
5
6
7
8
17  
16  
15  
14  
2C3  
NC  
2C2  
2C1  
1C1  
1C0  
9 10 11 12 13  
The SN54ALS253 is characterized for operation  
over the full military temperature range of 55°C  
to 125°C. The SN74ALS253 and SN74AS253A  
are characterized for operation from 0°C to 70°C.  
NC − No internal connection  
FUNCTION TABLE  
INPUTS  
OUTPUT  
SELECT  
DATA  
Y
OE  
B
X
L
A
X
L
C0  
X
L
C1  
X
X
X
L
C2  
X
X
X
X
X
L
C3  
X
X
X
X
X
X
X
L
H
L
L
L
L
L
L
L
L
Z
L
L
L
H
X
X
X
X
X
X
H
L
L
H
H
L
L
H
X
X
X
X
H
L
H
H
H
H
L
H
X
X
H
L
H
H
H
H
Select inputs A and B are common to both sections.  
ꢑꢧ  
Copyright 1994, Texas Instruments Incorporated  
ꢣ ꢧ ꢤ ꢣꢜ ꢝꢱ ꢟꢞ ꢢ ꢪꢪ ꢨꢢ ꢠ ꢢ ꢡ ꢧ ꢣ ꢧ ꢠ ꢤ ꢬ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443  

SN74ALS253NSRE4 替代型号

型号 品牌 替代类型 描述 数据表
SN74ALS253N TI

完全替代

DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74ALS253D TI

完全替代

DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74ALS153D TI

完全替代

DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS

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