74LVC244 Philips Semiconductors, 74LVC244 Datasheet - Page 3

• Manufacturer Part Number: 74LVC244
• Description: Octal buffer/line driver with 5-volt tolerant inputs/outputs 3-Statetitle
• Manufacturer: Philips Semiconductors

Philips Semiconductors
PIN DESCRIPTION
PIN CONFIGURATION
LOGIC SYMBOL (IEEE/IEC)
1998 May 20
PIN NUMBER
18, 16, 14, 12
17, 15, 13, 11
Octal buffer/line driver with 5-volt
tolerant inputs/outputs (3-State)
2, 4, 6, 8
3, 5, 7, 9
10
19
20
1
1A
2Y
2A
1Y
SYMBOL
GND
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
0
0
GND
0
0
1OE
2OE
V
1
2
4
6
8
19
13
15
17
11
to 1A
to 2Y
to 2A
to 1Y
CC
10
1
2
3
4
5
6
7
8
9
‘3
3
3
3
EN
EN
Output enable input (active LOW)
Data inputs
Bus outputs
Ground (0V)
Bus inputs
Bus outputs
Output enable input (active-LOW)
Positive supply voltage
SV00212
20
19
18
17
16
15
14
13
12
11
FUNCTION
SV00209
V
2OE
1Y0
2A0
1Y1
2A1
1Y2
2A2
1Y3
2A3
CC
18
16
14
12
9
7
5
3
3
H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High impedance OFF-state
FUNCTION TABLE
LOGIC SYMBOL
FUNCTIONAL DIAGRAM
nOE
H
L
L
1OE
1A
1A
1A
1A
0
1
2
3
INPUTS
2
4
6
8
1
nA
H
X
L
n
17
15
13
11
19
2
4
6
8
1
18
16
14
12
1OE
2OE
1A
1A
1A
1A
2A
2A
2A
2A
0
1
2
3
0
1
2
3
1Y
1Y
1Y
1Y
0
1
2
3
2OE
2A
2A
2A
2A
0
1
2
3
SV00211
1Y
1Y
1Y
1Y
2Y
2Y
2Y
2Y
17
15
13
11
19
0
1
2
3
o
1
2
3
74LVCH244A
OUTPUT
18
16
14
12
3
5
7
9
74LVC244A
nY
H
Z
L
Product specification
n
3
5
7
9
SV00210
2Y
2Y
2Y
2Y
o
1
2
3