CY7C421 CYPRESS [Cypress Semiconductor], CY7C421 Datasheet - Page 4

• Manufacturer Part Number: CY7C421
• Manufacturer: CYPRESS [Cypress Semiconductor]

Pin Configurations
Document Number: 38-06001 Rev. *H
Figure 1. 32-pin PLCC/LCC (Top View)
NC
Q
Q
Q
D
D
D
FF
XI
2
0
0
1
2
1
5
6
7
8
9
10
11
12
13
14 15 1617 181920
4 3 2 1 323130
7C421
29
28
27
26
25
24
23
22
21
FL/RT
XO/HF
D
D
NC
MR
EF
Q
Q
6
7
7
6
Figure 2. 28-pin DIP (Top View)
GND
Q
Q
Q
Q
Q
D
D
D
D
D
FF
W
XI
8
3
2
1
0
0
1
2
3
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
7C421
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V cc
D
D
D
FL/RT
MR
EF
XO/HF
Q
Q
Q
Q
R
D
4
5
6
7
7
6
5
4
NC
NC
Q
D
D
FF
Q
XI
1
0
0
1
Figure 3. 32-pIn TQFP (Top View)
1
2
3
4
5
6
7
8
32 3130 29 28 27
9 10 11 12 13 14 15
7C421
26
25
16
CY7C421
24
23
22
21
20
19
18
17
Page 4 of 21
D
FL/RT
NC
NC
MR
EF
XO/HF
Q
7
7