Features: • Outputs Directly Interface to CMOS, NMOS, and TTL• Operating Voltage Range: 2.0 to 6.0 V• Low Input Current: 1.0 A• High Noise Immunity Characteristic of CMOS DevicesPinoutSpecifications Symbol Parameter Valuel Unit VCC DC Supply Voltage ...
IN74HC244A: Features: • Outputs Directly Interface to CMOS, NMOS, and TTL• Operating Voltage Range: 2.0 to 6.0 V• Low Input Current: 1.0 A• High Noise Immunity Characteristic of CMOS Dev...
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Symbol |
Parameter |
Valuel |
Unit |
VCC |
DC Supply Voltage (Referenced to GND) |
-0.5 to +7.0 |
V |
VIN |
DC Input Voltage (Referenced to GND) |
-1.5 to VCC +1.5 |
V |
VOUT |
DC Output Voltage (Referenced to GND) |
-0.5 to VCC +0.5 |
V |
IIN |
DC Input Current, per Pin |
±20 |
mA |
IOUT |
DC Output Sink/Source Current, per Pin |
±35 |
mA |
ICC |
DC Supply Current, VCC and GND Pins |
±75 |
mA |
PD |
Power Dissipation in Still Air, Plastic DIP+SOIC Package+ |
750 500 |
mW |
Tstg |
Storage Temperature |
-65 to +150 |
°C |
TL |
Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) |
260 |
°C |
The IN74HC244A is identical in pinout to the LS/ALS244. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
This octal noninverting buffer/line driver/line receiver of the IN74HC244A 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.