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Functional Overview
2.3.3 External SDRAM
Rev.1.00 June 1,2005 2-8
REJ11J0002-0100Z
2
SDRAM SINGLE READ SDRAM SINGLE WRITE
Data
tWDH2
tWDD2
tOHZ
tOH
tAC
tLZ
tAD1tAD1tAD1tAD1tAD1tAD1
tAD1tAD1tAD1tAD1tAD1tAD1
tAD1tAD1tAD1tAD1tAD1tAD1
tDQMD1tDQMD1tDQMD1tDQMD1
tRWD1
tRWD1
tCASD1
tCASD1
tCASD1
tCASD1
tRASD1
tRASD1
tRASD1
tRASD1
tCSD1tCSD1tCSD1tCSD1
tHI
tSItRDH2
tRDS2
tHI
tSI
tHI
tSI
tHI
tSI
tHI
tSI
tDAL
tRP
tRC
tRPtRAS
tDPL
tDAL
tDPLtRCD
tRC
tRP tRAS
tRC
tRCD
tRAS tRP
tRC
tRAS
ACT READA ACT WRITEA ACT
Tr Trw1 Tc1 Tcw Td1 Tde Tr Trw1 Tc1 Trw11 Trw12 TrTap TapTrw2 Trw2
CKIO
CKE
CS3#
RASL#
CASL#
RD/WR#
DQMUU-LL
A11-A2(A9-A0)
A12(A10/AP)
A
15,A14(BA1,0)
D0-31
Figure2.3.4 Typical SDRAM Single Read/Write Timing