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8 ELECTRICAL CHARACTERISTICS
S1C33L03 PRODUCT PART EPSON A-93
A-1
A-8
SDRAM access cycle
(Bank, Row) (Column)
t
WED2
t
CASD2
BCLK
SDCKE
A[23:0]
SDA10
#SDCEx
#SDRAS
#SDCAS
#SDWE (read)
D[15:0]
HDQM/
LDQM
#SDWE (write)
D[15:0]
Bank active
t
AD
Read/write nop
H
valid
valid valid
t
A10D
t
CED1
t
CED2
t
WED1
t
WED1
t
WED2
t
DQMD1
t
WDH
t
WDD
t
DQMD2
valid valid valid
validvalid
valid
nop Precharge
t
RASD1
t
RASD2
t
CASD1
t
RDH
t
RDS
∗ Read: CAS latency = 2, burst length = 2 Write: single write
SDRAM mode-register-set cycle
t
CASD2
BCLK
SDCKE
A[23:0]
SDA10
#SDCEx
#SDRAS
#SDCAS
#SDWE
D[15:0]
HDQM/
LDQM
Mode register set
t
AD
nop nop
H
valid
t
AD
t
CED1
t
CED2
t
WED1
t
WED2
valid
nop nop
t
RASD1
t
RASD2
t
CASD1