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74ALVCH16821 Fiches technique(PDF) 3 Page - NXP Semiconductors

No de pièce 74ALVCH16821
Description  20-bit bus-interface D-type flip-flop; positive-edge trigger 3-State
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

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Philips Semiconductors
Product specification
74ALVCH16821
20-bit bus-interface D-type flip-flop;
positive-edge trigger (3-State)
1998 May 29
3
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
55, 54, 52, 51, 49,
48, 47, 45, 44, 43
1D0 - 1D9
Data inputs
42, 41, 40, 38, 37,
36, 34, 33, 31, 30
2D0 - 2D9
Data in uts
2, 3, 5, 6, 8,
9, 10, 12, 13, 14
1Q0 - 1Q9
Data outputs
15, 16, 17, 19, 20,
21, 23, 24, 26, 27
2Q0 - 2Q9
Data out uts
1, 28
1OE, 2OE
Output enable inputs
(active-Low)
56, 29
1CP, 2CP
Clock pulse inputs
(active rising edge)
4, 11, 18, 25,
32, 39, 46, 53
GND
Ground (0V)
7, 22, 35, 50
VCC
Positive supply
voltage
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
1OE
1Q0
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
GND
VCC
GND
1Q7
1Q8
1Q9
2Q0
2Q1
2Q2
GND
2Q3
2Q4
2Q5
VCC
2Q6
2Q7
GND
2Q8
2Q9
2OE
1CP
1D0
1D1
GND
1D2
1D3
VCC
1D4
1D5
1D6
GND
1D7
1D8
1D9
2D0
2D1
2D2
GND
2D3
2D4
2D5
VCC
2D6
2D7
GND
2D8
2D9
2CP
SH00001
FUNCTION TABLE
INPUTS
OUTPUT
nOE
CP
Dx
Q
L
L
L
L
H
H
L
}
X
Q0
H
X
X
Z
H = HIGH voltage level
L
= LOW voltage level
X = Don’t care
Z = High impedance OFF state
↑ = LOW to HIGH clock transition
} = Not a LOW-to-HIGH clock transition
LOGIC SYMBOL
1D0
1D1
1D2
1D3
1D4
1D5
1D6
1D7
1Q0
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
1D8
1D9
1Q8
1Q9
2D0
2D1
2D2
2D3
2D4
2D5
2D6
2D7
2Q0
2Q1
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2D8
2D9
2Q8
2Q9
55
54
52
51
49
48
47
45
44
43
42
41
40
38
37
36
34
33
31
30
1CP
1OE
2CP
2OE
56
1
29
28
2
3
5
6
8
9
10
12
13
14
15
16
17
19
20
21
23
24
26
27
SH00127


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