74ALVCH16373 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
74ALVCH16373 Datasheet PDF : 12 Pages
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Philips Semiconductors
16-bit D-type transparent latch (3-State)
Product specification
74ALVCH16373
PIN DESCRIPTION
PIN NUMBER SYMBOL
1
1OE
2, 3, 5, 6, 8, 9,
11, 12
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42
13, 14, 16, 17,
19, 20, 22, 23
1Q0 to 1Q7
GND
VCC
2Q0 to 2Q7
24
2OE
25
36, 35, 33, 32,
30, 29, 27, 26
47, 46, 44, 43,
41, 40, 38, 37
48
2LE
2D0 to 2D7
1D0 to 1D7
1LE
NAME AND FUNCTION
Output enable input
(active LOW)
Data inputs/outputs
Ground (0V)
Positive supply voltage
Data inputs/outputs
Output enable input
(active LOW)
Latch enable input (active
HIGH)
Data inputs
Data inputs
Latch enable input (active
HIGH)
LOGIC SYMBOL
1
24
1OE 2OE
47
1D0
1Q0
2
46
1D1
44
1D2
1Q1
3
1Q2
5
43
1D3
41
1D4
1Q3
6
1Q4
8
40
1D5
38
1D6
1Q5
9
1Q6
11
37
1D7
1Q7
12
36
2D0
2Q0
13
35
2D1
2Q1
14
33
2D2
2Q2
16
32
2D3
2Q3
17
30
2D4
2Q4
19
29
2D5
2Q5
20
27
2D6
2Q6
22
26
2D7
2Q7
23
1LE 2LE
LOGIC DIAGRAM
1D0
DQ
LATCH
1
LE LE
1Q0
2D0
48 25
SW00067
DQ
2Q0
LATCH
9
LE LE
1LE
1OE
2LE
2OE
TO 7 OTHER CHANNELS
FUNCTION TABLE (per section of eight bits)
OPERATING MODES
nOE
INPUTS
nLE
Enable and read register
(transparent mode)
L
H
L
H
Latch and read register
(hold mode)
L
L
L
L
Latch register and disable outputs
H
L
H
L
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the HIGH-to-LOW LE transition
L = LOW voltage level
l = LOW voltage level one set-up time prior to the HIGH-to-LOW LE transition
X = don’t care
Z = high impedance OFF-state
TO 7 OTHER CHANNELS
SW00068
INTERNAL
OUTPUTS
nDn
LATCHES
nQn
L
L
L
H
H
H
l
L
L
h
H
H
l
L
Z
h
H
Z
1999 Sep 20
3
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