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MB81EDS256445 Datasheet, PDF (36/52 Pages) Fujitsu Component Limited. – MEMORY Consumer FCRAM CMOS 256M Bit (4 bank x 1M word x 64 bit) Consumer Applications Specific Memory for SiP
MB81EDS256445
(4) Read with Auto-Precharge *1 (Assuming CL = 4, BL = 8)
CK
CK
CKE H
CS
RAS
CAS
WE
BA
BA
BA
BA
AP
RA
RA
Address RA
CA
RA
DM
DQS
DQ
ACT
tRCD
tRAS
BL/2
tRC
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
tRP
READA
Precharge
start*2
ACT*3
Don’t care
*1: RA = Row Address, BA = Bank Address, CA = Column Address, AP = Auto Precharge
*2: Internal precharge operation starts after BL/2 from READA command. tRAS must be satisfied.
*3: Next ACT command can be issued after BL/2 + tRP from READA command. tRC must be satisfied.
36
DS05-11456-1E