CY7C138-25JXC Cypress Semiconductor Corp, CY7C138-25JXC Datasheet - Page 6

• Manufacturer Part Number: CY7C138-25JXC
• Description: IC SRAM 32KBIT 25NS 68PLCC
• Manufacturer: Cypress Semiconductor Corp
• Type: Asynchronousr

Specifications of CY7C138-25JXC

• Memory Size: 32K (4K x 8)
• Package / Case: 68-PLCC
• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Access Time: 25 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 180 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Ports: 2
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2148; CY7C138-25JXC

Switching Characteristics
Document #: 38-06037 Rev. *G
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes
AW
HA
SA
PWE
SD
HD
HZWE
LZWE
WDD
DDD
BLA
BHA
BLC
BHC
PS
WB
WH
BDD
INS
INR
SOP
SWRD
SPS
11. Test conditions used are Load 3.
12. This parameter is guaranteed but not tested.
13. For information on part-to-part delay through RAM cells from writing port to reading port, refer to Read Timing with Port-to-Port Delay waveform.
14. Test conditions used are Load 2.
15. t
BUSY TIMING
INTERRUPT TIMING
SEMAPHORE TIMING
BDD
[15]
[13]
[13]
[11,12]
[11,12]
Parameter
is a calculated parameter and is the greater of t
[14]
[14]
Address setup to write end
Address hold from write end
Address setup to write start
Write pulse width
Data setup to write end
Data hold from write end
R/W LOW to High Z
R/W HIGH to Low Z
Write pulse to data delay
Write data valid to read data valid
BUSY LOW from address match
BUSY HIGH from address mismatch
BUSY LOW from CE LOW
BUSY HIGH from CE HIGH
Port setup for priority
R/W LOW after BUSY LOW
R/W HIGH after BUSY HIGH
BUSY HIGH to data valid
INT set time
INT reset time
SEM flag update pulse (OE or SEM)
SEM flag write to read time
SEM flag contention window
Over the Operating Range
WDD
– t
PWE
Description
(actual) or t
DDD
[7]
– t
(continued)
SD
(actual).
Min
20
20
15
20
10
2
0
0
–
3
–
–
–
–
–
–
5
0
–
–
–
5
5
7C138-25
Note 15
Max
15
50
30
20
20
20
20
25
25
–
–
–
–
–
–
–
–
–
–
–
–
–
CY7C138
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Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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