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MC54-74HC244A Datasheet(PDF) 1 Page - Motorola, Inc

Part No. MC54-74HC244A
Description  Octal 3-State Noninverting Buffer/Line Driver/Line Receiver
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC54-74HC244A 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 Noninverting
Buffer/Line Driver/
Line Receiver
High–Performance Silicon–Gate CMOS
The MC54/74HC244A is identical in pinout to the LS244. The device
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
This octal noninverting buffer/line driver/line receiver is designed to be
used with 3–state memory address drivers, clock drivers, and other
bus–oriented systems. The device has noninverting outputs and two
active–low output enables.
The HC244A is similar in function to the HC240A and HC241A.
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2 to 6 V
• Low Input Current: 1 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 136 FETs or 34 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
NONINVERTING
OUTPUTS
PIN 20 = VCC
PIN 10 = GND
OUTPUT
ENABLES
ENABLE A
ENABLE B
1
19
MC54/74HC244A
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
L
LH
H
HX
Z
Z = high impedance
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
ORDERING INFORMATION
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXADW
MC74HCXXXASD
MC74HCXXXADT
Ceramic
Plastic
SOIC
SSOP
TSSOP
DT SUFFIX
TSSOP PACKAGE
CASE 948E–02
J SUFFIX
CERAMIC PACKAGE
CASE 732–03
1
20
1
20
SD SUFFIX
SSOP PACKAGE
CASE 940C–03
1
20
1
20
1
20


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