SM5902AF Nippon Precision Circuits Inc, SM5902AF Datasheet - Page 34

• Manufacturer Part Number: SM5902AF
• Description: compression and non compression type shock-proof memory controller
• Manufacturer: Nippon Precision Circuits Inc

DRAM write timing (NRAS, NCAS, NCAS2, NWE, A0 to A10, D0 to D3)
Write timing (with single DRAM)
Write timing (with 2 DRAMs)
(DRAM1 SELECT)
(DRAM2 SELECT)
NCAS1
NCAS2
A0 to A10
D0 to D3
(WRITE)
D0 to D3
(WRITE)
A0 to A9
NWE
NRAS
NCAS
NRAS
NWE
t
t
RADS
RADS
t
t
t
t
RADH
RADH
CWDS
CWDS
t
t
t
RDC
RDC
RDC
t
t
CADS
CADS
t
t
WEL
WEL
SM5902AF
t
t
RASL
RASL
t
t
t
t
t
CWDH
CWDH
CASL
CASL
CASL
t
t
CADH
CADH
NIPPON PRECISION CIRCUITS-34
t
t
RASH
RASH
t
t
t
CASH
CASH
CASH