MC-45D32DA721 Datasheet, PDF (9/16 Pages) Elpida Memory – 32 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE

Asynchronous Characteristics
Parameter
Symbol
-C75 (PC266B)
-C80 (PC200)
Unit
MIN.
MAX.
MIN.
MAX.
ACT to REF/ACT command period (operation)
REF to REF/ACT command period (refresh)
ACT to PRE command period
PRE to ACT command period
ACT to READ/WRITE delay
ACT(one) to ACT(another) command period
Write recovery time
Auto precharge write recovery time + precharge time
Mode register set command cycle time
Exit self refresh to command
Refresh time (4,096 refresh cycles)
tRC
tRFC
tRAS
tRP
tRCD
tRRD
tWR
tDAL
tMRD
tXSNR
tREF
65
70
ns
75
80
ns
45
120,000
50
120,000
ns
20
20
ns
20
20
ns
15
15
ns
15
15
ns
35
35
ns
15
15
ns
75
80
ns
64
64
ms
Preliminary Data Sheet E0037N10
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