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器件3D模型￥ 3.232
SN74HC540NSR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
逻辑芯片
封装:
SOP-20
描述:
八路缓冲器和线路驱动器，三态OUTOUTS OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTOUTS
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SN74HC540NSR数据手册
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SCLS007D − MARCH 1984 − REVISED AUGUST 2003
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State Outputs Drive Bus
Lines Directly or Up To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max I
CC
D Typical t
pd
= 8 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Data Flow-Through Pinout (All Inputs on
Opposite Side From Outputs)
description/ordering information
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
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
’HC540 devices provide inverted data at the
outputs.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube of 20 SN74HC540N SN74HC540N
SOIC − DW
Tube of 25 SN74HC540DW
HC540
SOIC − DW
Reel of 2000 SN74HC540DWR
HC540
−40°C to 85°C
SOP − NS Reel of 2000 SN74HC540NSR HC540
−40°C to 85°C
SSOP − DB Reel of 2000 SN74HC540DBR HC540
Tube of 70 SN74HC540PW
TSSOP − PW
Reel of 2000 SN74HC540PWR
HC540
TSSOP − PW
Reel of 250 SN74HC540PWT
HC540
CDIP − J Tube of 20 SNJ54HC540J SNJ54HC540J
−55°C to 125°C
CFP − W Tube of 85 SNJ54HC540W SNJ54HC540W
−55 C to 125 C
LCCC − FK Tube of 55 SNJ54HC540FK SNJ54HC540FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
3212019
910111213
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
SN54HC540 . . . FK PACKAGE
(TOP VIEW)
CC
Copyright 2003, Texas Instruments Incorporated
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.
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