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SN74ALS38B PDF预览

SN74ALS38B

更新时间: 2024-09-08 23:06:15
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德州仪器 - TI 输出元件输入元件
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4页 72K
描述
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS WITH OPEN-COLLECTOR OUTPUTS

SN74ALS38B 数据手册

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SN54ALS38B, SN74ALS38B  
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS  
WITH OPEN-COLLECTOR OUTPUTS  
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994  
SN54ALS38B . . . J PACKAGE  
SN74ALS38B . . . D OR N PACKAGE  
(TOP VIEW)  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
1A  
1B  
1Y  
2A  
2B  
V
CC  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
4B  
4A  
4Y  
3B  
3A  
3Y  
description  
These devices contain four independent 2-input  
positive-NAND buffers with open-collector  
outputs. They perform the Boolean functions  
Y = A B or Y = A + B in positive logic. The  
open-collector outputs require pullup resistors to  
perform correctly. These outputs may be  
connected to other open-collector outputs to  
implement active-low wired-OR or active-high  
wired-AND functions. Open-collector devices  
2Y  
GND  
8
SN54ALS38B . . . FK PACKAGE  
(TOP VIEW)  
often are used to generate higher V  
levels.  
OH  
3
2
1
20 19  
18  
The SN54ALS38B is characterized for operation  
over the full military temperature range of 55°C  
to 125°C. The SN74ALS38B is characterized for  
operation from 0°C to 70°C.  
1Y  
NC  
2A  
4A  
4
5
6
7
8
NC  
17  
16 4Y  
15  
14  
NC  
2B  
NC  
3B  
FUNCTION TABLE  
(each gate)  
9 10 11 12 13  
INPUTS  
OUTPUT  
Y
A
B
H
X
L
NC – No internal connection  
H
L
L
H
H
X
logic symbol  
logic diagram (positive logic)  
1
1A  
2
1
&
3
6
3
6
1A  
2
1Y  
2Y  
3Y  
4Y  
1Y  
2Y  
3Y  
4Y  
1B  
4
1B  
4
2A  
5
2A  
5
2B  
9
2B  
3A  
10  
3B  
12  
4A  
13  
4B  
9
3A  
8
8
10  
3B  
11  
12  
4A  
11  
13  
4B  
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.  
Copyright 1994, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

SN74ALS38B 替代型号

型号 品牌 替代类型 描述 数据表
SN54ALS38B TI

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QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS WITH OPEN-COLLECTOR OUTPUTS

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