CY7C025E-25AXC Cypress Semiconductor Corp, CY7C025E-25AXC Datasheet - Page 5

• Manufacturer Part Number: CY7C025E-25AXC
• Description: CY7C025E-25AXC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025E-25AXC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (8K x 16)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-3072

Pin Definitions
Document Number: 001-62932 Rev. *A
CE
R/W
OE
A
I/O
SEM
UB
LB
INT
BUSY
M/S
V
GND
Notes
6. A
7. A
8. BUSY is an output in master mode and an input in slave mode.
0L
CC
L
0L
L
L
L
–A
L
L
L
–I/O
12L
12R
11/12L
L
[8]
on the CY7C025E/CY7C0251E.
Left Port
on the CY7C025E/CY7C0251E.
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
CE
R/W
OE
A
I/O
SEM
UB
LB
INT
BUSY
NC
NC
17R
17L
11L
12L
13L
14L
15L
16L
NC
NC
CC
CC
0R
1R
2R
3R
4R
5R
6R
8R
8L
0R
R
0R
R
R
R
R
–A
R
R
–I/O
R
11/12R
[8]
Right Port
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
15/17R
100 99
26
27 28
98
97
29
Figure 2. 100-Pin TQFP (Top View)
96
30
95 94
31 32
93 92
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
33
34
91
35
90
100-Pin TQFP
36 37 38
CY7C0241/CY7C0251E
89 88
Top View
87
39
86
40
85
41
84
42
83 82 81 80 79 78 77 76
43 44 45 46 47 48 49 50
Description
CY7C024E, CY7C0241E
CY7C025E, CY7C0251E
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
L
R
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