參數(shù)資料
型號(hào): MSC23S4641E-8BS16
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 4194304 Word x 64 Bit Synchronous Dynamic RAM Module (2BANK)(4M字×64位同步動(dòng)態(tài)RAM模塊)
中文描述: 4194304字× 64位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器模塊(2BANK)(4分字× 64位同步動(dòng)態(tài)內(nèi)存模塊)
文件頁(yè)數(shù): 10/11頁(yè)
文件大?。?/td> 74K
代理商: MSC23S4641E-8BS16
MSC23S4641E-8BS16 (98.06.22)
FUNCTION TRUTH TABLE (Table1)(2/2)
Current State
/CS
/RAS
/CAS
/WE
BA
Precharge
H
X
X
X
X
L
H
H
H
X
L
H
H
L
BA
L
H
L
X
BA
L
L
H
H
BA
L
L
H
L
BA
L
L
L
X
X
Write
H
X
X
X
X
Recovery
L
H
H
H
X
L
H
H
L
BA
L
H
L
X
BA
L
L
H
H
BA
L
L
H
L
BA
L
L
L
X
X
Row Active
H
X
X
X
X
L
H
H
H
X
L
H
H
L
BA
L
H
L
X
BA
L
L
H
H
BA
L
L
H
L
BA
L
L
L
X
X
Refresh
H
X
X
X
X
L
H
H
X
X
L
H
L
X
X
L
L
H
X
X
L
L
L
X
X
Mode Resister
H
X
X
X
X
Access
L
H
H
H
X
L
H
H
L
X
L
H
L
X
X
L
L
X
X
X
ADDR
X
X
X
CA
RA
A10
X
X
X
X
CA
RA
A10
X
X
X
X
CA
RA
A10
X
X
X
X
X
X
X
X
X
X
X
Action
NOP
Idle after tRP
NOP
Idle after tRP
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
NOP
4
ILLEGAL
NOP
NOP
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
ILLEGAL
NOP Row Active after tRCD
NOP Row Active after tRCD
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
ILLEGAL
2
ILLEGAL
NOP
Idle after tRC
NOP
Idle after tRC
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
ABBREVIATIONS
RA=Row Address
CA=Column Address AP=Auto Precharge
BA=Bank Address
NOP=No Operation command
Notes:
1.
All inputs will be enabled when CKE is set high for at least 1 cycle prior to the inputs.
2.
Illegal to bank in specified state,but may be legal in some cases depending on the state of bank
selection.
3.
Satisfy the timing of tCCD and tWR to prevent bus contention.
4.
NOP to bank precharging or in idle state. Precharges activated bank by BA or A10.
5.
Illegal if any bank is not idle.
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