CY7C135-25JC Cypress Semiconductor Corp, CY7C135-25JC Datasheet - Page 2

• Manufacturer Part Number: CY7C135-25JC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C135-25JC

• Density: 32Kb
• Access Time (max): 25ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 12b
• Package Type: PLCC
• Operating Temp Range: 0C to 70C
• Number Of Ports: 2
• Supply Current: 180mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 52
• Word Size: 8b
• Number Of Words: 4K
• Lead Free Status / Rohs Status: Not Compliant

Selection Guide
Pin Configurations
Figure 1. Pin Diagram - CY7C135/135A (Top View)
Pin Definitions
Document #: 38-06038 Rev. *D
Maximum Access Time
Maximum Operating Current
Maximum Standby Current for
I
A
CE
OE
R/W
SEM
(CY7C1342
only)
SB1
0L–11L
L
L
Left Port
L
L
I/O
I/O
I/O
I/O
A
A
A
A
A
A
A
A
A
1L
2L
3L
4L
5L
6L
7L
8L
9L
0L
1L
2L
3L
8
9
10
11
12
13
14
15
16
17
18
19
20
Parameter
21 22 23 24 25 26 27 28 29 30 31 32 33
A
CE
OE
R/W
SEM
(CY7C1342
only)
7 6 5 4 3 2
0R–11R
Right Port
R
R
R
R
7C135/135A
1
Commercial
Commercial
52 51 50 49 48 47
Address Lines
Chip Enable
Output Enable
Read/Write Enable
Semaphore Enable. When asserted LOW, allows access to eight semaphores. The three least
significant bits of the address lines determines which semaphore to write or read. The I/O
is used when writing to a semaphore. Semaphores are requested by writing a 0 into the
respective location.
46
45
44
43
42
41
40
39
38
37
36
35
34
7C1342-15
7C135-15
OE
A
A
A
A
A
A
A
A
A
A
NC
I/O
0R
1R
2R
3R
4R
5R
6R
7R
8R
9R
220
7R
R
15
60
7C1342-20
7C135-20
190
20
50
Figure 2. Pin Diagram - CY7C1342 (Top View)
7C135/135A-25
Description
7C1342-25
I/O
I/O
I/O
I/O
A
A
A
A
A
A
A
A
A
1L
2L
3L
4L
5L
6L
7L
8L
9L
0L
1L
2L
3L
180
25
40
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33
7 6 5 4 3 2
7C1342-35
7C135-35
CY7C135, CY7C135A
7C1342
160
1
35
30
52 51 50 49 48 47
7C1342-55
7C135-55
CY7C1342
46
45
44
43
42
41
40
39
38
37
36
35
34
160
55
30
OE
A
A
A
A
A
A
A
A
A
A
NC
I/O
Page 2 of 12
0R
1R
2R
3R
4R
5R
6R
7R
8R
9R
7R
R
0
Unit
mA
mA
ns
pin
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