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參數(shù)資料
| 型號： | SN54ALS20 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Dual 4-Input Positive-Nand Gates(雙4輸入正與非門) |
| 中文描述： | 雙路4輸入正和非門（雙4輸入正與非門） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 127K |
| 代理商： | SN54ALS20 |
SN54ALS20A, SN54AS20, SN74ALS20A, SN74AS20
DUAL 4-INPUT POSITIVE-NAND GATES
SDAS192B – APRIL 1982 – REVISED DECEMBER 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
These devices contain two independent 4-input
positive-NAND gates. They perform the Boolean
functions Y = A
B
C
D or Y = A + B + C + D
in positive logic.
The
characterized for operation over the full military
temperature range of –55
°
C to 125
°
C. The
SN74ALS20A and SN74AS20 are characterized
for operation from 0
°
C to 70
°
C.
SN54ALS20A
and
SN54AS20
are
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
Y
A
H
B
H
C
H
D
H
L
L
X
X
X
H
X
L
X
X
H
X
X
L
X
H
X
X
X
L
H
logic symbol
logic diagram (positive logic)
&
1Y
6
2Y
8
1
1A
2
1B
4
1C
5
1D
9
2A
10
2B
12
2C
13
2D
1Y
1D
1A
1B
1C
2C
2B
2A
2D
2Y
1
2
4
5
9
10
12
13
6
8
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.
SN54ALS20A, SN54AS20 . . . J PACKAGE
SN74ALS20A, SN74AS20 . . . D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
NC
1C
1D
1Y
GND
V
CC
2D
2C
NC
2B
2A
2Y
SN54ALS20A, SN54AS20 . . . FK PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2C
NC
NC
NC
2B
NC
NC
1C
NC
1D
1
1
N
2
2
V
2
1
N
C
NC – No internal connection
G
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(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54ALS22BFK | DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS |
| SN54ALS22BJ | DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS |
| SN74ALS22BD | DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS |
| SN54ALS22B | Dual 4-Input Positive-Nand Gates With Open-Collector Outputs(雙4輸入正與非門(集電極開路輸出)) |
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| SN54ALS240AJ | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST BIPOLAR 20CDIP - Rail/Tube |
| SN54ALS241AJ | 制造商:Texas Instruments 功能描述: |
| SN54ALS241BJ | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN54ALS241CJ | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST Bipolar 20-Pin CDIP Tube |
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