OCTAL BUFFER/LINE DRIVER
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MC74AC244 MC74ACT244
Octal Buffer/Line Driver with 3ĆState Outputs
OCTAL BUFFER/L...
Description
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MC74AC244 MC74ACT244
Octal Buffer/Line Driver with 3ĆState Outputs
OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
The MC74AC244/74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter/ receiver which provides improved PC board density. 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers Outputs Source/Sink 24 mA ′ACT244 Has TTL Compatible Inputs
N SUFFIX CASE 738-03 PLASTIC
VCC 20
OE2 19 18 17 16 15 14 13 12 11
1 OE1
2
3
4
5
6
7
8
9
10 GND
DW SUFFIX CASE 751D-04 PLASTIC
TRUTH TABLE
Inputs OE1 L L H D L H X Outputs (Pins 12, 14, 16, 18) L H Z
TRUTH TABLE
Inputs OE2 L L H D L H X Outputs (Pins 3, 5, 7, 9) L H Z
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
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FACT DATA 5-1
MC74AC244 MC74ACT244
MAXIMUM RATINGS*
Symbol VCC Vin Vout Iin Iout ICC Tstg Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC VCC or GND Current per Output Pin Storage Temperature Value –0.5 to +7.0 –0.5 to VCC +0.5 –0.5 to VCC +0.5 ±20 ±50 ±50 –65 to +150 Unit V V V mA mA mA °C
* Maximum Ratings are those values beyond which damage to the device may occur. Functi...
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