74VHCT244AT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
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74VHCT244AT Datasheet PDF : 8 Pages
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74VHCT244A
DC SPECIFICATIONS
Symb ol
Parameter
VIH High Level Input
Voltage
VIL Low Level Input
Voltage
VOH High Level Output
Voltage
VOL Low Level Output
Voltage
IOZ High Impedance
Output Leakage
Current
II Input Leakage Current
ICC Quiescent Supply
Current
∆ICC Additional Worst Case
Supply Current
IOPD Output Leakage
Current
Test Conditions
V CC
( V)
4.5 to 5.5
4.5 to 5.5
4.5
4.5
4.5
4.5
4.5 to 5.5
IO=-50 µA
IO=-8 mA
IO=50 µA
IO=8 mA
VI = VIH orVIL
VO = 0V to 5.5V
0 to 5.5
5.5
VI = 5.5V or GND
VI = VCC orGND
5.5
One Input at 3.4V,
other input at VCC or
GND
0
VOUT = 5.5V
Value
TA = 25 oC
Min. Typ. Max.
2
-40 to 85 oC
Min . Max.
2
0.8
0.8
4.4 4.5
4.4
3.94
3.8
0.0 0.1
0.1
0.36
0.44
±0.25
±2.5
±0.1
±1.0
2
20
1.35
1.5
0.5
5.0
Un it
V
V
V
V
µA
µA
µA
mA
µA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns)
Symb ol
Parameter
tPLH Propagation Delay
tPHL Time
tPLZ Output Disable Time
tPHZ
tPZL Output Enable Time
tPZH
(*) Voltage range is 5.0V ± 0.5V
Test Condition
V CC
CL
( V)
(pF)
5.0(*)
15
5.0(*)
50
5.0(*)
5.0(*)
5.0(*)
15
RL = 1KΩ
50
50
RL = 1KΩ
Value
TA = 25 oC
Min. Typ. Max.
5.4 7.4
5.9 8.4
7.7 10.4
8.2 11.4
8.8 11.4
-40 to 85 oC
Min . Max.
1.0 8.5
1.0 9.5
1.0 12.0
1.0 13.0
1.0 13.0
Unit
ns
ns
ns
3/8
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