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74ALVT16821DGGY

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
9397 750 15123 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 13 June 2005 3 of 18
Philips Semiconductors
74ALVT16821
20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state
5. Functional diagram
Fig 1. Logic symbol Fig 2. IEC logic symbol
001aad153
2D0 2D1 2D2 2D3 2D4 2D5 2D6 2D7 2D8 2D9
2Q0 2Q1 2Q2 2Q3 2Q4 2Q5 2Q6 2Q7 2Q8 2Q9
42 41 40 38 37 36 34 33 31 30
15 16 17 19 20 21 23 24 26 27
28 2OE
29 2CP
1D0 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 1D9
1Q0 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 1Q8 1Q9
55 54 52 51 49 48 47 45 44 43
23568910121314
1 1OE
56 1CP
29
28
56
EN4
1
EN2
1OE
1CP
2OE
2CP
1D0
1D1
1D2
1D3
1D4
1D5
1D6
1D7
1D8
1D9
2D0
2D1
2D2
2D3
2D4
2D5
2D6
2D7
2D8
2D9
1Q0
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
1Q8
1Q9
2Q0
2Q1
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2Q8
2Q9
C3
C1
21D
3D
4
001aad155
42
41
40
38
37
36
34
33
31
30
15
16
17
19
20
21
23
24
26
27
55
54
52
51
49
48
47
45
44
43
2
3
5
6
8
9
10
12
13
14
Fig 3. Logic diagram
001aad156
D
CP Q
nD2
nCP
nOE
nQ2
D
CP Q
nD3
nQ3
D
CP Q
nD4
D
CP Q
nD0
nQ0
D
CP Q
nD1
nQ1 nQ4
D
CP Q
nD5
nQ5
D
CP Q
nD6
nQ6
D
CP Q
nD7
nQ7
D
CP Q
nD8
nQ8
D
CP Q
nD9
nQ9
9397 750 15123 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 13 June 2005 4 of 18
Philips Semiconductors
74ALVT16821
20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state
6. Pinning information
6.1 Pinning
6.2 Pin description
Fig 4. Pin configuration
16821
1OE 1CP
1Q0 1D0
1Q1 1D1
GND GND
1Q2 1D2
1Q3 1D3
V
CC
V
CC
1Q4 1D4
1Q5 1D5
1Q6 1D6
GND GND
1Q7 1D7
1Q8 1D8
1Q9 1D9
2Q0 2D0
2Q1 2D1
2Q2 2D2
GND GND
2Q3 2D3
2Q4 2D4
2Q5 2D5
V
CC
V
CC
2Q6 2D6
2Q7 2D7
GND GND
2Q8 2D8
2Q9 2D9
2OE 2CP
001aad154
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
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
Table 3: Pin description
Symbol Pin Description
1
OE 1 1 output enable input (active LOW)
1Q0 2 1 data output 0
1Q1 3 1 data output 1
GND 4 ground (0 V)
1Q2 5 1 data output 2
1Q3 6 1 data output 3
V
CC
7 supply voltage
1Q4 8 1 data output 4
9397 750 15123 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 13 June 2005 5 of 18
Philips Semiconductors
74ALVT16821
20-bit bus interface D-type flip-flop; positive-edge trigger; 3-state
1Q5 9 1 data output 5
1Q6 10 1 data output 6
GND 11 ground (0 V)
1Q7 12 1 data output 7
1Q8 13 1 data output 8
1Q9 14 1 data output 9
2Q0 15 2 data output 0
2Q1 16 2 data output 1
2Q2 17 2 data output 2
GND 18 ground (0 V)
2Q3 19 2 data output 3
2Q4 20 2 data output 4
2Q5 21 2 data output 5
V
CC
22 supply voltage
2Q6 23 2 data output 6
2Q7 24 2 data output 7
GND 25 ground (0 V)
2Q8 26 2 data output 8
2Q9 27 2 data output 9
2
OE 28 2 output enable input (active LOW)
2CP 29 2 clock pulse input (active rising edge)
2D9 30 2 data input 9
2D8 31 2 data input 8
GND 32 ground (0 V)
2D7 33 2 data input 7
2D6 34 2 data input 6
V
CC
35 supply voltage
2D5 36 2 data input 5
2D4 37 2 data input 4
2D3 38 2 data input 3
GND 39 ground (0 V)
2D2 40 2 data input 2
2D1 41 2 data input 1
2D0 42 2 data input 0
1D9 43 1 data input 9
1D8 44 1 data input 8
1D7 45 1 data input 7
GND 46 ground (0 V)
1D6 47 1 data input 6
1D5 48 1 data input 5
1D4 49 1 data input 4
Table 3: Pin description
…continued
Symbol Pin Description
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

74ALVT16821DGGY

Mfr. #:
Buy 74ALVT16821DGGY
Manufacturer:
Nexperia
Description:
Flip Flops 20-Bit Bus-Interface D-Type Flip-Flop
Lifecycle:
New from this manufacturer.
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