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CYDC256B16, CYDC128B16,
CYDC064B16, CYDC128B08,
CYDC064B08
Document #: 001-01638 Rev. *E Page 17 of 26
t
HZWE
[30, 31]
R/W LOW to High Z 15 25 ns
t
LZWE
[30, 31]
R/W HIGH to Low Z 0 0 ns
t
WDD
[32]
Write Pulse to Data Delay 55 80 ns
t
DDD
[32]
Write Data Valid to Read Data Valid 55 80 ns
Busy Timing
[33]
t
BLA
BUSY LOW from Address Match 30 45 ns
t
BHA
BUSY HIGH from Address Mismatch 30 45 ns
t
BLC
BUSY LOW from CE LOW 30 45 ns
t
BHC
BUSY HIGH from CE HIGH 30 45 ns
t
PS
[34]
Port Set-up for Priority 5 5 ns
t
WB
R/W HIGH after BUSY (Slave) 0 0 ns
t
WH
R/W HIGH after BUSY HIGH (Slave) 20 35 ns
t
BDD
[35]
BUSY HIGH to Data Valid 30 40 ns
Interrupt Timing
[33]
t
INS
INT Set Time 35 45 ns
t
INR
INT Reset Time 35 45 ns
Semaphore Timing
t
SOP
SEM Flag Update Pulse (OE or SEM)10 15 ns
t
SWRD
SEM Flag Write to Read Time 10 10 ns
t
SPS
SEM Flag Contention Window 10 10 ns
t
SAA
SEM Address Access Time 40 55 ns
Switching Characteristics for V
CC
= 3.0V Over the Operating Range (continued)
Parameter Description
CYDC256B16,
CYDC128B16,
CYDC064B16,
CYDC128B08,
CYDC064B08
CYDC256B16,
CYDC128B16,
CYDC064B16,
CYDC128B08,
CYDC064B08 Unit
-40 -55
Min. Max. Min. Max.
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