CY7C261
CY7C263/CY7C264
DIP/Flatpack
Top View
LCC/PLCC (Opaque only)
Top View
V
A
CC
7
1
2
3
4
5
6
24
23
22
VFY
A
6
PGM
A
5
3 2 1 28 27
7C261
4
26
25
LATCH
CS
LATCH
A /A
A /A
4 12
4
12
5
6
7
8
9
21
20
19
18
17
A /A
24
23
22
21
20
19
CS
3
11
A
/ A
11
3
V
A /A
PP
2
10
V
PP
A /A
2
10
NA
A /A
1
9
NA
A /A
1
9
7
A /A
0
8
NC
D
7
D
6
A /A
D
7
0
8
NC
D
8
7C263
7C261
10
11
D
6
D
0
0
9
16
15
14
13
7C263
7C264
13 14 15 16 1718
12
D
5
D
1
10
11
12
D
4
D
2
GND
D
3
Figure 1. Programming Pinouts
Programming Information
Programming support is available from Cypress as well as
from a number of third-party software vendors. For detailed
programming information, including a listing of software
packages, please see the PROM Programming Information
located at the end of this section. Programming algorithms can
be obtained from any Cypress representative.
Document #: 38-04010 Rev. *B
Page 6 of 14
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