CY7C025-25JI Cypress Semiconductor Corp, CY7C025-25JI Datasheet - Page 4

• Manufacturer Part Number: CY7C025-25JI
• Description: SRAM Chip Async Dual 5V 128K-Bit 8K x 16 25ns 84-Pin PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025-25JI

• Package: 84PLCC
• Timing Type: Asynchronous
• Density: 128 Kb
• Typical Operating Supply Voltage: 5 V
• Address Bus Width: 12 Bit
• Number Of I/o Lines: 16 Bit
• Number Of Ports: 2
• Number Of Words: 8K

Pin Configurations
Pin Definitions
CE
R/W
OE
A
I/O
SEM
UB
LB
INT
BUSY
M/S
V
GND
0L
CC
L
0L
L
L
L
–A
L
L
–I/O
L
L
11/12L
Left Port
15/17L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
GND
GND
V
V
NC
NC
17R
17L
11L
12L
13L
14L
15L
16L
NC
NC
CC
CC
0R
1R
2R
3R
4R
5R
6R
8R
8L
(continued)
CE
R/W
OE
A
I/O
SEM
UB
LB
INT
BUSY
0R
R
R
0R
R
R
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
R
–A
R
R
–I/O
100 99
R
Right Port
11/12R
26
27 28
15/17R
98
97
29
96
30
95 94
31 32
93 92
33
34
91
Chip Enable
Read/Write Enable
Output Enable
Address
Data Bus Input/Output
Semaphore Enable
Upper Byte Select
Lower Byte Select
Interrupt Flag
Busy Flag
Master or Slave Select
Power
Ground
35
90
100-Pin TQFP
36 37 38
CY7C0241/0251
89 88
Top View
87
39
4
86
40
85
41
84
42
83 82 81 80 79 78 77 76
43 44 45 46 47 48 49 50
Description
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
NC
NC
NC
NC
A
A
A
A
A
A
INT
BUSY
GND
M/S
BUSY
INT
A
A
A
A
A
NC
NC
NC
NC
5L
4L
3L
2L
1L
0L
0R
1R
2R
3R
4R
L
R
7C024–3
L
R
CY7C024/0241
CY7C025/0251