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參數(shù)資料
| 型號： | SN54HC540FK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路緩沖器和線路驅(qū)動器，三態(tài)輸出 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 93K |
| 代理商： | SN54HC540FK |
SN54HC540, SN74HC540
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS007B – MARCH 1984 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
High-Current 3-State Outputs Drive Bus
Lines Directly or up to 15 LSTTL Loads
Data Flow-Through Pinout (All Inputs on
Opposite Side From Outputs)
Package Options Include Plastic (DW) and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
These octal buffers and line drivers feature the
performance of the popular ’HC240 series and
offer a pinout with inputs and outputs on opposite
sides of the package. This arrangement greatly
enhances printed circuit board layout.
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
’HC540 provide inverted data at the outputs.
The SN54HC540 is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74HC540 is characterized for
operation from –40
°
C to 85
°
C.
FUNCTION TABLE
(each buffer/driver)
INPUTS
OE2
OUTPUT
Y
OE1
A
L
L
L
H
L
L
H
L
H
X
X
Z
X
H
X
Z
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.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54HC540 . . . J OR W PACKAGE
SN74HC540 . . . DW OR N PACKAGE
(TOP VIEW)
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
A
A
O
Y
Y
V
O
A
G
Y
SN54HC540 . . . FK PACKAGE
(TOP VIEW)
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.
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