CY7C006A-20AXCT Cypress Semiconductor Corp, CY7C006A-20AXCT Datasheet - Page 13

• Manufacturer Part Number: CY7C006A-20AXCT
• Description: CY7C006A-20AXCT
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C006A-20AXCT

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 128K (16K x 8)
• Speed: 20ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Document Number: 38-06045 Rev. *F
Semaphore Read After Write Timing, Either Side
Timing Diagram of Semaphore Contention
Notes
39. CE = HIGH for the duration of the above timing (both write and read cycle).
40. I/O
41. Semaphores are reset (available to both ports) at cycle start.
42. If t
A
A
A
0R
SPS
0L
0R
0
SEM
SEM
–A
SEM
R/W
R/W
R/W
I/O
–A
–A
OE
= I/O
is violated, the semaphore will definitely be obtained by one side or the other, but which side will get the semaphore is unpredictable.
2
2L
0
2R
R
L
R
L
0L
= LOW (request semaphore); CE
t
SA
(continued)
VALID ADRESS
t
AW
WRITE CYCLE
t
t
R
PWE
SCE
= CE
t
SD
DATA
t
MATCH
SPS
MATCH
L
= HIGH.
t
IN
HA
VALID
[40, 41, 42]
t
HD
[39]
t
SWRD
t
SOP
t
SOP
READ CYCLE
t
AA
VALID ADRESS
t
DOE
t
ACE
CY7C006A/CY7C007A
CY7C016A/CY7C017A
DATA
OUT
VALID
t
OHA
Page 13 of 22
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