74AC244M STMICROELECTRONICS [STMicroelectronics], 74AC244M Datasheet - Page 2

• Manufacturer Part Number: 74AC244M
• Description: OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

74AC244
2/8
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X: ”H” or ”L”
Z: High impedance
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
RECOMMENDED OPERATING CONDITIONS
1) V
Symbol
I
Symbol
CC
IN
dt/dv
V
V
from 30% to 70% of V
T
V
I
or I
T
V
I
T
V
I
V
OK
CC
IK
O
stg
CC
op
O
L
O
I
I
GND
Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Current
DC V
Storage Temperature
Lead Temperature (10 sec)
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature:
Input Rise and Fall Time V
G
CC
H
L
L
CC
or Ground Current
INPUT
Parameter
Parameter
CC
= 3.0, 4.5 or 5.5 V(note 1)
An
H
L
X
PIN DESCRIPTION
11, 13, 15, 17
18, 16, 14, 12
PIN No
2, 4, 6, 8
9, 7, 5, 3
19
10
20
1
SYMBOL
1A1 to 1A4
2Y1 to 2Y4
2A1 to 2A4
1Y1 to 1Y4
GND
V
1G
2G
CC
-0.5 to V
-0.5 to V
-65 to +150
-40 to +85
-0.5 to +7
0 to V
0 to V
Value
Value
2 to 6
300
400
8
Output Enable Input
Data Inputs
Data Outputs
Data Inputs
Data Outputs
Output Enabel Input
Ground (0V)
Positive Supply Voltage
20
20
50
CC
CC
NAME AND F UNCTIO N
CC
CC
+ 0.5
+ 0.5
OUT PUT
Yn
H
Z
L
Unit
Un it
ns/V
mA
mA
mA
mA
o
o
o
V
V
V
V
V
V
C
C
C