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CY7C026A-20AC(2000) 查看數據表(PDF) - Cypress Semiconductor

零件编号
产品描述 (功能)
比赛名单
CY7C026A-20AC
(Rev.:2000)
Cypress
Cypress Semiconductor Cypress
CY7C026A-20AC Datasheet PDF : 17 Pages
First Prev 11 12 13 14 15 16 17
CY7C026A
CY7C036A
Switching Waveforms (continued)
Semaphore Read After Write Timing, Either Side[33]
A 0A 2
SEM
VALID ADRESS
tAW
tHA
tSCE
tSAA
VALID ADRESS
tSOP
tACE
tOHA
I/O 0
R/W
OE
tSD
DATA IN VALID
tSA
tPWE
tHD
DATA OUT VALID
WRITE CYCLE
tSWRD
tSOP
tDOE
READ CYCLE
Timing Diagram of Semaphore Contention[34, 35, 36]
A0L A2L
MATCH
R/WL
SEM L
A 0RA2R
R/WR
SEM R
tSPS
MATCH
Notes:
33. CE = HIGH for the duration of the above timing (both write and read cycle).
34. I/O0R = I/O0L = LOW (request semaphore); CER = CEL = HIGH.
35. Semaphores are reset (available to both ports) at cycle start.
36. If tSPS is violated, the semaphore will definitely be obtained by one side or the other, but which side will get the semaphore is unpredictable.
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