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IK Semiconductor

IN74HCT244A Datasheet Preview

IN74HCT244A Datasheet

Octal Buffer/Line Driver NINV

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TECHNICAL DATA
Octal 3-State Noninverting
Buffer/Line Driver/Line Receiver
High-Performance Silicon-Gate CMOS
IN74HCT244A
The IN74HCT244A is identical in pinout to the LS/ALS244. The
device may be used as a level converter for interfacing TTL or NMOS
outputs to High-Speed CMOS inputs.
The IN74HCT244A is an octal noninverting buffer/line driver/line
receiver designed to be used with 3-state memory address drivers, clock
drivers, and other bus-oriented systems. The device has non-inverted
outputs and two active-low output enables.
TTL/NMOS-Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA
ORDERING INFORMATION
IN74HCT244AN Plastic
IN74HCT244ADW SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
www.datasheet4u.cPPIoNINm1020==GVNCCD
FUNCTION TABLE
Inputs
Outputs
Enable A,
Enable B
A,B YA,YB
L LL
L HH
H XZ
X=don’t care;Z = high impedance
1




IK Semiconductor

IN74HCT244A Datasheet Preview

IN74HCT244A Datasheet

Octal Buffer/Line Driver NINV

No Preview Available !

IN74HCT244A
MAXIMUM RATINGS*
Symbol
VCC
VIN
VOUT
IIN
IOUT
ICC
PD
Tstg
TL
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 Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air, Plastic DIP**
SOIC Package**
Storage Temperature
Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
Value
-0.5 to +7.0
-1.5 to VCC +1.5
-0.5 to VCC +0.5
±20
±35
±75
750
500
-65 to +150
260
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
**Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
Unit
V
V
V
mA
mA
mA
mW
°C
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VIN, VOUT
TA
tr, tf
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time (Figure 1)
Min Max Unit
4.5 5.5
V
0 VCC V
-55 +125 °C
0 500 ns
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or
VOUT)VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused
outputs must be left open.
2


Part Number IN74HCT244A
Description Octal Buffer/Line Driver NINV
Maker IK Semiconductor
Total Page 6 Pages
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