CY7C138-15JXC Cypress Semiconductor Corp, CY7C138-15JXC Datasheet - Page 2

• Manufacturer Part Number: CY7C138-15JXC
• Description: IC SRAM 32KBIT 15NS 68PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C138-15JXC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 32K (4K x 8)
• Speed: 15ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 38-06037 Rev. *B
Pin Configurations
\
Pin Definitions
Selection Guide
I/O
A
CE
OE
R/W
SEM
INT
BUSY
M/S
V
GND
Maximum Access Time (ns)
Maximum Operating Current
Maximum Standby Current for I
Notes:
3. I/O
4. I/O
0L–11L
CC
0L–7L(8L)
L
L
L
L
L
8R
8L
L
on the CY7C139.
on the CY7C139.
Left Port
I/O
A
CE
OE
R/W
SEM
INT
BUSY
0R–11R
0R–7R(8R)
R
R
R
R
R
SB1
R
Right Port
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
I/O
GND
V
V
CC
CC
2R
5R
2L
3L
4L
6L
0R
1R
3R
4R
6R
5L
7L
Commercial
Commercial
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
2728 29 30
9 8 7 6
Data Bus Input/Output
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 will
determine which semaphore to write or read. The I/O
writing to a semaphore. Semaphores are requested by writing a 0 into the
respective location.
Interrupt Flag. INT
when left port reads location FFE. INT
FFF and is cleared when right port reads location FFF.
Busy Flag
Master or Slave Select
Power
Ground
3132 33 34 35 36 37 38 39 40 41 42 43
5 4 3 2 1 68
7C138-15
7C139-15
68-Pin PLCC
CY7C138/9
Top View
220
15
60
67
66 65 64 63 62 61
L
is set when right port writes location FFE and is cleared
7C138-25
7C139-25
180
25
40
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
Description
A
A
A
A
A
A
INT
BUSY
GND
M/S
BUSY
INT
A
A
A
A
A
5L
4L
3L
2L
1L
0L
0R
1R
2R
3R
4R
L
R
7C138-35
7C139-35
L
R
R
160
is set when left port writes location
35
30
7C138-55
7C139-55
0
pin is used when
160
55
30
CY7C138
CY7C139
Page 2 of 16
Unit
mA
mA
ns
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