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SN54HCT540 PDF预览

SN54HCT540

更新时间： 2024-11-04 23:03:03
品牌 Logo 应用领域
德州仪器 - TI 驱动器输出元件
页数 文件大小 规格书
6页 95K
描述
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

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SN54HCT540 数据手册

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SN54HCT540, SN74HCT540  
OCTAL BUFFERS AND LINE DRIVERS  
WITH 3-STATE OUTPUTS  
SCLS008B – MARCH 1984 – REVISED MAY 1997  
SN54HCT540 . . . J OR W PACKAGE  
SN74HCT540 . . . DW OR N PACKAGE  
(TOP VIEW)  
Inputs Are TTL-Voltage Compatible  
High-Current 3-State Outputs Interface  
Directly With System Bus or Can Drive up  
to 15 LSTTL Loads  
OE1  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
V
CC  
OE2  
Y1  
1
2
3
4
5
6
7
8
9
20  
19  
18  
Data Flow-Through Pinout (All Inputs on  
Opposite Side From Outputs)  
17 Y2  
16 Y3  
15 Y4  
14 Y5  
13 Y6  
12 Y7  
11 Y8  
Package Options Include Plastic  
Small-Outline (DW) and Ceramic Flat (W)  
Packages, Ceramic Chip Carriers (FK), and  
Standard Plastic (N) and Ceramic (J)  
300-mil DIPs  
description  
GND 10  
These octal buffers and line drivers are designed  
to have the performance of the ’HCT240 and a  
pinout with inputs and outputs on opposite sides  
of the package. This arrangement greatly  
facilitates printed circuit board layout.  
SN54HCT540 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
The 3-state control gate is a 2-input NOR. If either  
output-enable (OE1 or OE2) input is high, all eight  
outputs are in the high-impedance state. The  
’HCT540 provide inverted data at the outputs.  
Y1  
Y2  
Y3  
A3  
A4  
A5  
A6  
A7  
4
5
6
7
8
17  
16  
15 Y4  
14  
9 10 11 12 13  
Y5  
The SN54HCT540 is characterized for operation  
over the full military temperature range of –55°C  
to 125°C. The SN74HCT540 is characterized for  
operation from –40°C to 85°C.  
FUNCTION TABLE  
(each buffer/driver)  
INPUTS  
OUTPUT  
Y
OE1  
L
OE2  
L
A
L
H
L
L
L
H
X
X
H
X
Z
Z
X
H
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.  
Copyright 1997, 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  
123456

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