參數(shù)資料
型號(hào): SN54HCT540FKR
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 總線收發(fā)器
英文描述: HCT SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CQCC20
封裝: CERAMIC, LCC-20
文件頁(yè)數(shù): 1/6頁(yè)
文件大?。?/td> 93K
代理商: SN54HCT540FKR
SN54HCT540, SN74HCT540
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS008B – MARCH 1984 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Inputs Are TTL-Voltage Compatible
D High-Current 3-State Outputs Interface
Directly With System Bus or Can Drive up
to 15 LSTTL Loads
D Data Flow-Through Pinout (All Inputs on
Opposite Side From Outputs)
D 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
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.
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.
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
OE1
OE2
A
Y
L
H
L
LH
L
H
XX
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
VCC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54HCT540 ...J OR W PACKAGE
SN74HCT540 . . . DW OR N PACKAGE
(TOP VIEW)
32 1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
A2
A1
OE1
Y7
Y6
V
OE2
A8
GND
Y8
SN54HCT540 . . . FK PACKAGE
(TOP VIEW)
CC
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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