參數資料
型號: MSC23S2720E-8BS9
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 2,097,152 Word x72 Bit Synchronous Dynamic RAM Module (2BANK)(2M字×72位同步動態(tài)RAM模塊)
中文描述: 2097152字x72位同步動態(tài)隨機存儲器模塊(2BANK)(200萬字× 72位同步動態(tài)內存模塊)
文件頁數: 11/11頁
文件大?。?/td> 73K
代理商: MSC23S2720E-8BS9
MSC23S2720E-8BS9 (98.08.31)
Page 11/11
FUNCTION TRUTH TABLE (CKE) (Table2)
Current State (n)
CKEn-1
CKEn
/CS
Self Refresh
H
X
L
H
L
H
L
H
L
H
L
H
L
L
H
X
Power Down
L
H
L
H
L
H
L
H
L
H
L
L
All Banks idle
6
H
H
(ABI)
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
L
Any State
H
H
Other than
H
L
Listed Above
L
H
L
L
/RAS
X
X
H
H
H
L
X
X
X
H
H
H
L
X
X
X
H
H
H
L
L
L
X
X
X
X
X
/CAS
X
X
H
H
/WE
X
X
H
L
X
X
X
X
X
H
L
X
X
X
X
X
H
L
X
L
H
L
X
X
X
X
X
ADDR
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Action
X
H
L
L
L
L
X
X
H
L
L
L
L
X
X
H
L
L
L
L
L
L
X
X
X
X
X
INVALID
Exit Self Refresh
ABI
Exit Self Refresh
ABI
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Maintain Self Refresh)
INVALID
Exit Power Down
ABI
Exit Power Down
ABI
ILLEGAL
ILLEGAL
ILLEGAL
6
NOP (Continue power down mode)
Refer to Table 1
Enter Power Down
Enter Power Down
ILLEGAL
ILLEGAL
ILLEGAL
Enter Self Refresh
ILLEGAL
NOP
Refer to Operations in Table 1
Begin Clock Suspend Next Cycle
Enable Clock of Next Cycle
Continue Clock Suspension
L
X
X
X
X
H
H
L
X
X
X
X
H
H
L
H
L
L
X
X
X
X
X
Notes:
6.
Power-down and self refresh can be entered only when all the banks are in an idle state.
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