74f244b NXP Semiconductors, 74f244b Datasheet - Page 3

• Manufacturer Part Number: 74f244b
• Description: Octal Buffers 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
IEC/IEEE SYMBOL
LOGIC DIAGRAM
1994 Dec 5
V
GND = Pin 10
Octal buffers (3-State)
CC
Ia1
Ia2
Ia3
OEa
Ia0
= Pin 20
2
4
6
8
1
19
17
15
13
11
1
2
4
6
8
18
16
14
12
EN1
EN2
2D
Ya0
Ya1
Ya2
Ya3
Ib0
Ib1
Ib2
Ib3
OEb
2
1
17
15
13
11
19
SF00229
SF00230
18
16
14
12
3
5
7
9
3
5
7
9
Yb0
Yb1
Yb2
Yb3
3
FUNCTION TABLE
NOTES:
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance ”off” state
OEa
H
L
L
Ia
H
L
X
INPUTS
OEb
H
L
L
74F244/74F244B
Ib
H
L
X
Product specification
Ya
H
Z
L
OUTPUTS
Yb
H
L
Z