MB81F643242B-10FN-X Datasheet, PDF (20/56 Pages) Fujitsu Component Limited. – MEMORY CMOS 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM

MB81F643242B-10FN-X Advanced Info (AE0.3E)
Fig. 2 – BASIC TIMING FOR CONVENTIONAL DRAM VS SYNCHRONOUS DRAM
<SDRAM>
Active
CLK
H
CKE
tSI
CS
H
tHI
Read/Write
Precharge
H
RAS
CAS
WE
Address
DQ
BA (A11, A12)
RA
H : Read
L : Write
BA (A11, A12)
CA
CAS Latency = 2
<Conventional DRAM>
RAS
Row Address Select
Burst Length = 4
Column Address Select
CAS
DQ
BA (A11, A12)
AP (A10)
Precharge
20