MB81F643242B-10FN-X Datasheet, PDF (29/56 Pages) Fujitsu Component Limited. – MEMORY CMOS 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM

MB81F643242B-10FN-X Advanced Info (AE0.3E)
BASE VALUES FOR CLOCK COUNT/LATENCY
Parameter
Notes
RAS Cycle Time
*9
RAS Precharge Time
RAS Active Time
RAS to CAS Delay Time
Write Recovery Time
RAS to RAS Bank Active Delay Time
Data-in to Precharge Lead Time
Data-in to Active/Refresh Command
Period
Mode Resister Set Cycle Time
CL=3
Symbol
tRC
tRP
tRAS
tRCD
tWR
tRRD
tDPL
tDAL3
tRSC
MB81F643242B-10FN-X
Min.
Max.
100
—
30
—
60
110000
30
—
15
—
30
—
15
—
2 cyc + tRP
—
30
—
CLOCK COUNT FORMULA Note *10
Clock ≥
Base Value
Clock Period
(Round off a whole number)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
29