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參數(shù)資料
| 型號(hào)： | SN54AS250AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1-OF-16 DATA GENERATORS/MULTIPLEXERS WITH 3-STATE OUTPUTS |
| 中文描述： | 1 - - 16數(shù)據(jù)生成/多路復(fù)用器與三態(tài)輸出 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 111K |
| 代理商： | SN54AS250AFK |
SN54AS250A, SN74AS250A
1-OF-16 DATA GENERATORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SDAS137A – DECEMBER 1983 – REVISED DECEMBER 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
4-Line to 1-Line Multiplexers That Can
Select 1-of-16 Data Inputs
Applications:
Boolean Function Generator
Parallel-to-Serial Converter
Data Source Selector
Buffered 3-State Bus Driver Inputs Permit
Multiplexing From n Lines to One Line
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic
(NT) and Ceramic (JT) 300-mil DIPs
description
The
′
AS250A devices provide full binary decoding
to select 1-of-16 data inputs or use sources as an
input with an inverting W output. The selected
sources
are
buffered
propagation delay times. This reduces the
possibility of transients occurring at the output.
with
symmetrical
A buffered output-enable (OE) input can be used
for n-line to 1-line cascading. Taking OE high
places the output in the high-impedance state. In
the high-impedance state, the output neither loads
nor drives the bus lines significantly.
OE does not affect the internal operations of the
data selector/multiplexer. New data can be set up
while the outputs are disabled.
The SN54AS250A is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74AS250A is characterized for
operation from 0
°
C to 70
°
C.
SN54AS250A . . . JT PACKAGE
SN74AS250A . . . DW OR NT PACKAGE
(TOP VIEW)
SN54AS250A . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
E7
E6
E5
E4
E3
E2
E1
E0
OE
W
D
GND
V
CC
E8
E9
E10
E11
E12
E13
E14
E15
A
B
C
3
2 1
13 14
5
6
7
8
9
10
11
E10
E11
E12
NC
E13
E14
E15
E4
E3
E2
NC
E1
E0
OE
4
15 16 17 18
D
G
N
C
B
A
E
E
E
N
28 27 2625
24
23
22
21
20
19
12
W
V
E
E
C
NC – No internal connection
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.
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