MC74HC540A_14 Datasheet, PDF (1/7 Pages) ON Semiconductor – Octal 3-State Inverting Buffer/Line Driver/Line Receiver

MC74HC540A
Octal 3-State Inverting
Buffer/Line Driver/Line
Receiver
High−Performance Silicon−Gate CMOS
The MC74HC540A is identical in pinout to the LS540. The device
inputs are compatible with Standard CMOS outputs. External pull−up
resistors make them compatible with LSTTL outputs.
The HC540A is an octal inverting buffer/line driver/line receiver
designed to be used with 3−state memory address drivers, clock
drivers, and other bus−oriented systems. This device features inputs
and outputs on opposite sides of the package and two ANDed
active−low output enables.
The HC540A is similar in function to the HC541A, which has
noninverting outputs.
Features
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1 mA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance With the JEDEC Standard No. 7 A Requirements
• Chip Complexity: 124 FETs or 31 Equivalent Gates
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
A1 ²
18 _Y1
A2 ³
17 _Y2
A3 ⁴
16 _Y3
Data
Inputs
A4 ⁵
A5 ⁶
15 _Y4
14 _Y5
A6 ⁷
13 _Y6
A7 ⁸
12 _Y7
A8 ⁹
11 _Y8
Output OE1 ¹
Enables
OE2
19
PIN 20 = V_CC
PIN 10 = GND
Figure 1. Logic Diagram
Inverting
Outputs
© Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 11
http://onsemi.com
SOIC−20
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
PIN ASSIGNMENT
V_CC OE2 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
OE1 A1 A2 A3 A4 A5 A6 A7 A8 GND
20−Lead (Top View)
MARKING DIAGRAMS
20
74HC540A
AWLYYWWG
20
HC
540A
ALYWG
G
1
1
SOIC−20
TSSOP−20
A
WL, L
YY, Y
WW, W
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
Inputs
OE1 OE2 A
L
L
L
L
L
H
HXX
XHX
Z = High Impedance
X = Don’t Care
Output Y
H
L
Z
Z
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
Publication Order Number:
MC74HC540A/D