msm548263 Oki Semiconductor, msm548263 Datasheet - Page 20

• Manufacturer Part Number: msm548263
• Description: Msm548263256k X 8 Multiport Dram
• Manufacturer: Oki Semiconductor

¡ Semiconductor
CAS before RAS Refresh Cycle
Note:
Address
DQ1 - 8
Code
CBRR
CBRS
CBRN
RAS
CAS
TRG
DSF
WE
  












  
The type of CBR operations are determined by the logic states of "A", "B" and "C".
t
OFF
STOP Address
t
RPC
RAS Falling Edge
t
RP
A
X
X
t
t
t
t
WSR
ASR
CSR
FSR
A
B
C
t
CHR
t
t
t
RWH
RAH
RFH
CBR Cycle Function Table
 
 
B
0
1
1
C
1
0
1
Inhibit Falling Transition
t
RAS
CBR Refresh (Reset All Options)
CBR Refresh (Set STOP Address)
CBR Refresh (No Reset Options)
t
RC
Open

t
RPC
Function
t
RP
MSM548263
"H" or "L"
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