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PDF MC54HC244A Data sheet ( Hoja de datos )

Número de pieza MC54HC244A
Descripción Octal 3-State Noninverting Buffer/Line Driver/Line Receiver
Fabricantes Motorola Semiconductors 
Logotipo Motorola Semiconductors Logotipo



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No Preview Available ! MC54HC244A Hoja de datos, Descripción, Manual

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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
MC54/74HC244A
20
1
J SUFFIX
CERAMIC PACKAGE
CASE 732–03
20
1
20
1
20
1
N SUFFIX
PLASTIC PACKAGE
CASE 738–03
DW SUFFIX
SOIC PACKAGE
CASE 751D–04
SD SUFFIX
SSOP PACKAGE
CASE 940C–03
20
1
DT SUFFIX
TSSOP PACKAGE
CASE 948E–02
ORDERING INFORMATION
MC54HCXXXAJ
Ceramic
MC74HCXXXAN
Plastic
MC74HCXXXADW SOIC
MC74HCXXXASD SSOP
MC74HCXXXADT TSSOP
A1 2
A2 4
A3 6
DATA
INPUTS
A4 8
B1 11
B2 13
B3 15
B4 17
OUTPUT ENABLE A 1
ENABLES ENABLE B 19
18 YA1
16 YA2
14 YA3
12 YA4
NONINVERTING
9 YB1 OUTPUTS
7 YB2
5 YB3
3 YB4
PIN 20 = VCC
PIN 10 = GND
PIN ASSIGNMENT
ENABLE A
A1
YB4
A2
YB3
A3
YB2
A4
YB1
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 ENABLE B
18 YA1
17 B4
16 YA2
15 B3
14 YA3
13 B2
12 YA4
11 B1
FUNCTION TABLE
Inputs
Enable A,
Enable B A, B
LL
LH
HX
Outputs
YA, YB
L
H
Z
Z = high impedance
2/97
© Motorola, Inc. 1997
1
REV 7

1 page




MC54HC244A pdf
DATA
INPUT
A OR B
LOGIC DETAIL
TO THREE OTHER
A OR B INVERTERS
ENABLE A OR
ENABLE B
MC54/74HC244A
ONE OF 8
INVERTERS
VCC
YA
OR
YB
High–Speed CMOS Logic Data
DL129 — Rev 6
5
MOTOROLA

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