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| 型號： | SN54ALS137AJ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES |
| 中文描述： | 3線至8線解碼器/解復用器與地址鎖存 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 518K |
| 代理商： | SN54ALS137AJ |
SN54ALS137A, SN74ALS137A, SN74AS137
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
WITH ADDRESS LATCHES
SDAS203C – APRIL 1982 – REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Combines Decoder and 3-Bit Address
Latch
Incorporates Two Output Enables to
Simplify Cascading
Package Options Include Plastic Small-
Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
The
SN74AS137 are 3-line to 8-line decoders/
demultiplexers with latches on the three address
inputs. When the latch-enable (LE) input is low,
the devices act as decoders/demultiplexers.
When LE goes from low to high, the address
present at the select (A, B, and C) inputs is stored
in the latches. Further address changes are
ignored as long as LE remains high. The
output-enable controls (G1 and G2) control the
outputs
independently
latch-enable inputs. All of the outputs are forced
high if G1 is low or G2 is high. These devices are
ideally suited for implementing glitch-free
decoders in strobed (stored-address) applications
in bus-oriented systems.
SN54ALS137A,
SN74ALS137A,
and
of
the
select
or
The SN54ALS137A is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74ALS137A and SN74AS137
are characterized for operation from 0
°
C to 70
°
C.
FUNCTION TABLE
INPUTS
OUTPUTS
ENABLE
SELECT
LE
G1
G2
C
B
A
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
H
X
X
X
H
H
H
H
H
H
H
H
X
L
X
X
X
X
H
H
H
H
H
H
H
H
L
H
L
L
L
L
L
H
H
H
H
H
H
H
L
H
L
L
L
H
H
L
H
H
H
H
H
H
L
H
L
L
H
L
H
H
L
H
H
H
H
H
L
H
L
L
H
H
H
H
H
L
H
H
H
H
L
H
L
H
L
L
H
H
H
H
L
H
H
H
L
H
L
H
L
H
H
H
H
H
H
L
H
H
L
H
L
H
H
L
H
H
H
H
H
H
L
H
L
H
L
H
H
H
H
H
H
H
H
H
H
L
H
H
L
X
X
X
Outputs corresponding to stored address = L; all others = H
SN54ALS137A . . . J PACKAGE
SN74ALS137A, SN74AS137 . . . D OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
NC
Y3
Y4
C
LE
NC
G2
G1
SN54ALS137A . . . FK PACKAGE
(TOP VIEW)
B
A
N
Y
Y
Y
Y
G
N
NC – No internal connection
V
C
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A
B
C
LE
G2
G1
Y7
GND
V
CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
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.
相關PDF資料 |
PDF描述 |
|---|---|
| SN74ALS137ADR | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES |
| SN74ALS137ADRE4 | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES |
| SN74ALS137ANSR | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES |
| SN74ALS137ANSRE4 | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES |
| SN54ALS139FK | DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SN54ALS138AJ | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Single 3-to-8 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:DECODER/DEMLTPLXR SGL 3-TO-8 16CDIP - Rail/Tube |
| SN54ALS153J | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54ALS157AJ | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CDIP Tube |
| SN54ALS161BJ | 制造商:Texas Instruments 功能描述:Counter Single 4-Bit Sync Binary UP 16-Pin CDIP Tube |
| SN54ALS163BJ | 制造商:Texas Instruments 功能描述:4-BIT SYNC BINARY COUNTER - Rail/Tube |
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