MC74ACT244 Motorola, MC74ACT244 Datasheet

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MC74ACT244

Manufacturer Part Number
MC74ACT244
Description
OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
Manufacturer
Motorola
Datasheet

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( DataSheet : www.DataSheet4U.com )
www.DataSheet4U.com
Octal Buffer/Line Driver
with 3 State Outputs
employed as a memory address driver, clock driver and bus oriented transmitter/
receiver which provides improved PC board density.
TRUTH TABLE
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
OE 1
3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
Outputs Source/Sink 24 mA
H
V CC
L
L
ACT244 Has TTL Compatible Inputs
OE 1
The MC74AC244/74ACT244 is an octal buffer and line driver designed to be
Inputs
20
1
OE 2
D
H
X
L
19
2
(Pins 12, 14, 16, 18)
18
3
Outputs
17
4
H
L
Z
16
5
15
6
14
7
13
8
12
9
GND
10
11
FACT DATA
5-1
TRUTH TABLE
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
OE 2
H
L
L
Inputs
D
H
L
X
(Pins 3, 5, 7, 9)
Outputs
H
Z
L
MC74ACT244
MC74AC244
OCTAL BUFFER/LINE
3-STATE OUTPUTS
DRIVER WITH
CASE 751D-04
CASE 738-03
DW SUFFIX
N SUFFIX
PLASTIC
PLASTIC
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MC74ACT244 Summary of contents

Page 1

... TRUTH TABLE Inputs HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance FACT DATA 5-1 MC74AC244 MC74ACT244 OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC Outputs (Pins www.DataSheet4U.com ...

Page 2

... MC74AC244 MC74ACT244 MAXIMUM RATINGS* Symbol Supply Voltage (Referenced to GND Input Voltage (Referenced to GND) V out DC Output Voltage (Referenced to GND Input Current, per Pin I out DC Output Sink/Source Current, per Pin GND Current per Output Pin T stg Storage Temperature * Maximum Ratings are those values beyond which damage to the device may occur ...

Page 3

... MC74AC244 MC74ACT244 DC CHARACTERISTICS Symbol Symbol Parameter Parameter V IH Minimum High Level Input Voltage Input Voltage V IL Maximum Low Level Input Voltage Input Voltage V OH Minimum High Level Output Voltage Output Voltage V OL Maximum Low Level Output Voltage Output Voltage I IN Maximum Input ...

Page 4

... MC74AC244 MC74ACT244 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Symbol Parameter Parameter Propagation Delay t PLH t PLH Data to Output Propagation Delay t PHL t PHL Data to Output t PZH t PZH Output Enable Time Output Enable Time t PZL t PZL Output Enable Time Output Enable Time ...

Page 5

... MC74AC244 MC74ACT244 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Symbol Parameter Parameter Propagation Delay t PLH t PLH Data to Output Data to Output Propagation Delay t PHL t PHL Data to Output Data to Output t PZH Output Enable Time t PZL Output Enable Time t PHZ Output Disable Time ...

Page 6

... MC74AC244 MC74ACT244 –A– –T– SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

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