HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 805

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HD6417615

Manufacturer Part Number
HD6417615
Description
Hardware Manual
Manufacturer
Hitachi Semiconductor
Datasheet

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796
Notes: 1. Dotted line shows the case where synchronous DRAM in a different CS space is
2. DACKn waveform when active-high is specified
accessed.
Figure 21.22 Synchronous DRAM Write Bus Cycle
CKIO
Address
upper bits
Address
lower bits
BS
CSn
RD/WR
RD
WEn
DQMxx
D31–D0
DACKn
WAIT
RAS
CAS
OE
CKE
(RASD = 0, RCD = 1 Cycle, TRWL = 1 Cycle)
tRWD
tWDD1
tAD
tCSD1
tDACD1
tDON
tDQMD
tBSD
tRASD1
Tr
tAD
tRWD
tRASD1
tCASD1
Tc
tBSD
tCSD1
tRWD
tAD
tDACD1
tWDH1
tDQMD
tRASD1
tCASD1
tDOF
Tap
tRSD1
tCSD1
tDACD1
tRASD1
tCASD1

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