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MC74HCT240A Datasheet(PDF) 1 Page - Motorola, Inc

Part No. MC74HCT240A
Description  Octal 3-State Inverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC74HCT240A Datasheet(HTML) 1 Page - Motorola, Inc

   
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1
REV 7
© Motorola, Inc. 1997
2/97
Octal 3-State Inverting Buffer/
Line Driver/Line Receiver with
LSTTL-Compatible Inputs
High–Performance Silicon–Gate CMOS
The MC74HCT240A is identical in pinout to the LS240. This device may
be used as a level converter for interfacing TTL or NMOS outputs to
High–Speed CMOS inputs. The HCT240A 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. The device has
inverting outputs and two active–low output enables.
The HCT240A is the inverting version of the HCT244. See also HCT241.
• Output Drive Capability: 15 LSTTL Loads
• TTL NMOS–Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1 µA
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 110 FETs or 27.5 Equivalent Gates
LOGIC DIAGRAM
DATA INPUTS
A1
A2
A3
A4
B1
B2
B3
B4
17
15
13
11
8
6
4
218
16
14
12
9
7
5
3
YB4
YB3
YB2
YB1
YA4
YA3
YA2
YA1
INVERTING
OUTPUTS
PIN 20 = VCC
PIN 10 = GND
OUTPUT
ENABLES
ENABLE A
ENABLE B
1
19
MC74HCT240A
PIN ASSIGNMENT
A3
A2
YB4
A1
ENABLE A
GND
YB1
A4
YB2
YB3
5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
YA2
B4
YA1
ENABLE B
VCC
B1
YA4
B2
YA3
B3
FUNCTION TABLE
Inputs
Outputs
Enable A,
Enable B
A, B
YA, YB
LL
H
LH
L
HX
Z
Z = High Impedance
X = Don’t Care
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ORDERING INFORMATION
MC74HCTXXXAN
MC74HCTXXXADW
MC74HCTXXXASD
MC74HCTXXXADT
Plastic
SOIC
SSOP
TSSOP
DT SUFFIX
TSSOP PACKAGE
CASE 948E–02
1
20
SD SUFFIX
SSOP PACKAGE
CASE 940C–03
1
20
1
20
1
20


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