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STV0684 Datasheet(PDF) 29 Page - STMicroelectronics

Part # STV0684
Description  Digital Camera Processor
PDF  49 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV0684 Datasheet(HTML) 29 Page - STMicroelectronics

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STV0684
Electrical Characteristics
4.5.4
SDRAM timing description
4.5.4.1 Read/Write timing diagrams for external synchronous DRAM
Figure 5: SDRAM read timing
Figure 6: SDRAM write timing
DCLK
Command
DQM
A0-9, BA,
A10
ACTIVE
READ
NOP
PRECHARGE
NOP
ROW
COLUMN
ROW
DOUT M
DOUT M + 1
DOUT M + 2
DOUT M + 3
DQ
CAS Latency
tCK
tRCD
tRC
CKE
tRAS
DQ sample
DQ sample
DQ sample
DQ sample
tRP
tCMS tCMH
tAS
tAH
tCL
tCH
tCMS
tCMH
tAC
tOH
(RAS, CAS,
WE)
A11-12
DCLK
Command
DQM
A0-9,
A10
SDRAM Write Timing
ACTIVE
WRITE
NOP
PRECHARGE
NOP
ROW
COLUMN
ROW
DIN M
DIN M + 1
DIN M + 2
DIN M + 3
DQ
tCK
tRCD
tRC
CKE
tRAS
tRP
tCMS tCMH
tAS
tAH
tCL
tCH
tCMS
tCMH
tDS
tDH
(RAS, CAS,
WE)
A11-12



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