MC74F244N Motorola, MC74F244N Datasheet

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MC74F244N

Manufacturer Part Number
MC74F244N
Description
Octal buffer/line driver with 3-state outputs
Manufacturer
Motorola
Datasheet
1.MC74F244N.pdf (4 pages)

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OCTAL BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
employed as memory address drivers, clock drivers, and bus-oriented trans-
mitters/receivers which provide improved PC board density.
The F240, F241 and F244 are octal buffers and line drivers designed to be
3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
Outputs Sink 64 mA
15 mA Source Current
Input Clamp Diodes Limit High-Speed Termination Effects
ESD > 4000 Volts
V CC OE b
V CC OE b
OE a
OE a
V CC OE b
OE a
20
20
1
1
20
1
I a0
I a0 Y b0
19
19
I a0
2
2
19
2
CONNECTION DIAGRAMS
Y b0
Y a0
Y a0 I b0
Y b0
18
18
Y a0
3
3
18
3
I b0
I a1
I a1
17
17
4
4
I a1
I b0
17
4
MC54/74F241
MC54/74F244
MC54/74F240
Y a1
Y b1
Y a1
Y b1
16
16
Y b1
5
5
Y a1
16
5
I a2
I b1
I a2
I b1 Y a2
15
15
6
6
I a2
I b1 Y a2
15
6
Y b2
Y a2 I b2
Y b2
14
14
Y b2
7
7
14
7
I b2
I a3
I a3
FAST AND LS TTL DATA
13
13
8
8
I b2
13
I a3
8
Y b3
Y a3 I b3
Y a3 I b3
Y b3
12
12
Y a3
Y b3
9
9
12
9
GND
GND
10
10
GND
11
11
I b3
10
11
4-108
20
20
OCTAL BUFFER/LINE DRIVER
20
WITH 3-STATE OUTPUTS
1
1
MC54/74F240
MC54/74F241
MC54/74F244
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
MC74FXXXDW SOIC
FAST
1
SCHOTTKY TTL
Ceramic
Plastic
CASE 751D-03
DW SUFFIX
CASE 732-03
CASE 738-03
CERAMIC
SOIC
J SUFFIX
N SUFFIX
PLASTIC

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MC74F244N Summary of contents

Page 1

OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS The F240, F241 and F244 are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented trans- mitters/receivers which provide improved PC board density. 3-State Outputs Drive ...

Page 2

MC54/74F240 MC54/74F241 MC54/74F244 FUNCTION TABLE MC54/74F240 Inputs Outputs ...

Page 3

MC54/74F240 MC54/74F241 MC54/74F244 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Symbol Parameter V IH Input HIGH Voltage V IL Input LOW Voltage V IK Input Clamp Diode Voltage V OH Output HIGH Voltage V OL Output LOW Voltage ...

Page 4

MC54/74F240 MC54/74F241 MC54/74F244 AC CHARACTERISTICS – MC54/74F240 Symbol Parameter t PLH Propagation Delay, Data to Output t PHL t PZH Output Enable Time t PZL t PHZ Output Disable Time t PLZ AC CHARACTERISTICS – MC54/74F241 Symbol Parameter t PLH ...

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