M74HCT244 STMICROELECTRONICS [STMicroelectronics], M74HCT244 Datasheet - Page 2

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

M74HCT244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65 C; derate to 300mW by 10mW/ C from 65 C to 85 C
RECOMMENDED OPERATING CONDITIONS
2/9
I
CC
Symbol
Symbol
V
V
T
t
I
or I
T
V
P
V
I
T
r
V
OK
I
V
stg
, t
CC
IK
O
CC
op
O
D
O
L
I
I
f
GND
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
DC V
Power Dissipation
Storage Temperature
Lead Temperature (10 sec)
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time (V
CC
G
H
L
L
or Ground Current
INPUTS
Parameter
Parameter
CC
= 4.5 to 5.5V)
An
H
X
L
PIN DESCRIPTION
18, 16, 14,
11, 13, 15,
2, 4, 6, 8
9, 7, 5, 3
PIN No
17
12
19
10
20
1
1A1 to 1A4
2Y1 to 2Y4
2A1 to 2A4
1Y1 to 1Y4
SYMBOL
GND
V
1G
2G
CC
-0.5 to V
-0.5 to V
-65 to +150
-55 to 125
-0.5 to +7
4.5 to 5.5
0 to V
0 to V
0 to 500
500(*)
Value
Value
Output Enable Input
Data Inputs
Data Outputs
Data Inputs
Data Outputs
Output Enable Input
Ground (0V)
Positive Supply Voltage
300
NAME AND FUNCTION
20
20
35
70
OUTPUT
CC
CC
CC
CC
Yn
+ 0.5
+ 0.5
H
L
Z
Unit
Unit
mW
mA
mA
mA
mA
°C
°C
°C
ns
V
V
V
V
V
V