M74HCT244 STMICROELECTRONICS [STMicroelectronics], M74HCT244 Datasheet - Page 3

• Manufacturer Part Number: M74HCT244
• Description: OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (C
t
t
t
t
t
Symbol
Symbol
TLH
PLH
PLH
PZL
PLZ
V
V
V
V
I
I
CC
OZ
OH
I
OL
I
IH
CC
IL
I
t
t
t
t
t
PZH
PHZ
THL
PHL
PHL
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
Additional Worst
Case Supply
Current
Output Transition
Time
Propagation Delay
Time
Propagation Delay
Time
Output Enable
Time
Output Disable
Time
Parameter
Parameter
V
V
(V)
4.5
5.5
4.5
5.5
4.5
4.5
5.5
5.5
5.5
5.5
(V)
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
to
to
CC
CC
Test Condition
Test Condition
(pF)
150
150
150
V
C
50
50
50
50
50
V
V
O
Other Inputs at
V
L
I
I
Per Input pin
= V
= V
V
I
I
V
= V
I
I
O
I
O
V
O
= V
CC
I
O
=-6.0 mA
=6.0 mA
I
=-20 A
= 0.5V or
=20 A
CC
CC
R
R
CC
= 2.4V
or GND
IH
L
L
L
or GND
or GND
= 1 K
= 1 K
or GND
or V
= 50 pF, Input t
IL
Min.
4.18
Min.
2.0
4.4
T
T
A
A
r
Typ.
4.31
0.17
Typ.
= 25°C
= 25°C
4.5
0.0
15
21
15
21
17
23
16
= t
7
f
= 6ns)
Max.
Max.
0.26
0.8
0.1
2.0
12
22
30
25
33
30
38
30
0.1
0.5
4
Value
Value
-40 to 85°C
Min.
4.13
-40 to 85°C
Min.
2.0
4.4
Max.
Max.
0.33
0.8
0.1
2.9
40
15
28
38
31
41
38
48
38
1
5
-55 to 125°C
-55 to 125°C
Min.
4.10
Min.
2.0
4.4
M74HCT244
Max.
Max.
0.40
0.8
0.1
3.0
80
18
33
45
38
50
45
57
45
10
1
Unit
Unit
mA
ns
ns
ns
ns
ns
V
V
V
V
A
A
A
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