EM610FV16 Series
merging Memory & Logic Solutions Inc.
Low Power, 64Kx16 SRAM
TIMING WAVEFORM OF WRITE CYCLE(3) (UB, LB CONTROLLED)
tWC
Address
tCW(2)
tW R(4)
CS1
CS2
tAW
tBW
UB,LB
tWP(1)
tAS(3)
WE
tDH
tDW
Data in
Data Valid
High-Z
High-Z
Data out
NOTES (WRITE CYCLE)
1. A write occurs during the overlap(tWP) of low CS1 and low WE. A write begins when CS1 goes low and WE
goes low with asserting UB or LB for single byte operation or simultaneously asserting UB and LB for double
byte operation. A write ends at the earliest transition when CS1 goes high and WE goes high. The tWP is
measured from the beginning of write to the end of write.
2. tCW is measured from the CS1 going low to end of write.
3. tAS is measured from the address valid to the beginning of write.
4. tWR is measured from the end or write to the address change. tWR applied in case a write ends as CS1
or WE going high.
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