CY7C144-55JXCT Cypress Semiconductor Corp, CY7C144-55JXCT Datasheet - Page 10

• Manufacturer Part Number: CY7C144-55JXCT
• Description: CY7C144-55JXCT
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C144-55JXCT

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 64K (8K x 8)
• Speed: 55ns
• 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

Switching Characteristics
Over the Operating Range
Document #: 38-06034 Rev. *H
Note
Busy Timing
t
t
t
t
t
t
t
t
Interrupt Timing
t
t
Semaphore Timing
t
t
t
12. Test conditions used are Load 2.
BLA
BHA
BLC
BHC
PS
WB
WH
BDD
INS
INR
SOP
SWRD
SPS
Parameter
[12]
[12]
BUSY LOW from address match
BUSY HIGH from address mismatch
BUSY LOW from CE LOW
BUSY HIGH from CE HIGH
Port set-up 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
[7]
Description
(continued)
Min
13
10




5
0



5
5
7C144-15
7C145-15
Max
15
15
15
15
15
15
15






Min
20
10




5
0



5
5
7C144-25
Max
20
20
20
20
25
25
25






CY7C144 CY7C145
Min
30
20




5
0



5
5
7C144-55
Max
30
30
30
30
55
35
35






Page 10 of 23
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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