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參數(shù)資料
| 型號： | SN74ALS22BD |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 門電路 |
| 英文描述： | ALS SERIES, DUAL 4-INPUT NAND GATE, PDSO14 |
| 封裝： | PLASTIC, SOIC-14 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 53K |
| 代理商： | SN74ALS22BD |
SN54ALS22B, SN74ALS22B
DUAL 4INPUT POSITIVENAND GATES
WITH OPENCOLLECTOR OUTPUTS
SDAS005A MARCH 1984 REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
Copyright
1986, Texas Instruments Incorporated
5BASIC
1
Package Options Include Plastic Small
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
Dependable Texas Instruments Quality and
Reliability
description
These devices contain two independent 4-input
NAND gates. They perform the Boolean functions
Y = A
BCD or Y = A+B+C+D in positive logic.
The
open-collector
outputs
require
pullup
resistors to perform correctly. They may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices are
often used to generate higher VOH levels.
The SN54ALS22B is characterized for operation
over the full military temperature range of 55
°C
to 125
°C. The SN74ALS22B is characterized for
operation from 0
°C to 70°C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
A
B
C
D
Y
H
L
XXX
H
X
LX
X
H
X
XLX
H
X
L
H
logic symbol
2D
13
12
2C
&
8
2Y
6
1Y
2B
10
2A
9
1D
5
1C
4
2
1B
1A
1
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for D, J, and N packages.
1Y
1D
1A
1B
1C
2C
2B
2A
2D
2Y
logic diagram (positive logic)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
NC
1C
1D
1Y
GND
VCC
2D
2C
NC
2B
2A
2Y
SN54ALS22B ...J PACKAGE
SN74ALS22B . . . D OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
2C
NC
2B
NC
1C
NC
1D
SN54ALS22B . . . FK PACKAGE
(TOP VIEW)
1B
1A
NC
2Y
2A
2D
1Y
GND
NC
NC No internal connection
V
CC
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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| SN74ALS231DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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| SN74ALS232BDW | 功能描述:先進(jìn)先出 16 x 4 asynchronous 先進(jìn)先出 memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| SN74ALS232BDWR | 功能描述:先進(jìn)先出 16 x 4 asynchronous 先進(jìn)先出 memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| SN74ALS232BFN | 功能描述:先進(jìn)先出 16 x 4 asynchronous 先進(jìn)先出 memory RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
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