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