參數(shù)資料
型號(hào)： SN54HC20W
廠商： Texas Instruments, Inc.
英文描述： Up to 18V NiCd/NiMH Battery Fast Charge Controller with 177s Hold-off Time; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
中文描述： 雙4輸入陽性與非門
文件頁數(shù)： 1/5頁
文件大小： 67K
代理商： SN54HC20W
SN54HC20, SN74HC20
DUAL 4-INPUT POSITIVE-NAND GATES
SCLS086D – DECEMBER 1982 – REVISED FEBRUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) DIPs
description
The ’HC20 devices contain two independent
4-input NAND gates. They perform the Boolean
function Y = A
B
C
D or Y = A + B + C + D in
positive logic.
The SN54HC20 is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74HC20 is characterized for
operation from –40
°
C to 85
°
C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
Y
A
B
C
D
H
H
H
H
L
L
X
X
X
H
X
L
X
X
H
X
X
L
X
H
X
X
X
L
H
logic symbol
1
1A
2
1B
1Y
6
4
1C
5
1D
2Y
8
9
2A
10
2B
&
12
2C
13
2D
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, J, N, PW, and W packages.
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
SN54HC20 . . . J OR W PACKAGE
SN74HC20 . . . D, DB, N, OR PW 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
G
N
SN54HC20 . . . FK PACKAGE
(TOP VIEW)
NC – No internal connection
Copyright
2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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
SN74HC244NSG4 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
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SN54HC244FK Up to 18V NiCd/NiMH Battery Fast Charge Controller with 708s Hold-off Time, Pb Free Device; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
SN54HC244W Up to 18V NiCd/NiMH Battery Fast Charge Controller with 708s Hold-off Time; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50
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