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| 型號： | MSC23S4721E-8BS18 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 4194304 Word x 72 Bit Synchronous Dynamic RAM Module (2BANK)(4M字×72位同步動態(tài)RAM模塊) |
| 中文描述： | 4194304字× 72位同步動態(tài)隨機(jī)存儲器模塊（2BANK）（4分字× 72位同步動態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 77K |
| 代理商： | MSC23S4721E-8BS18 |
MSC23S4721E-8BS18 (98.07.17)
Page 9/11
FUNCTION TRUTH TABLE (Table1)(1/2)
Current State
/CS
/RAS
/CAS
Idle
H
X
L
H
L
H
L
H
L
L
L
L
L
L
L
L
Row Active
H
X
L
H
L
H
L
H
L
L
L
L
L
L
Read
H
X
L
H
L
H
L
H
L
H
L
L
L
L
L
L
Write
H
X
L
H
L
H
L
H
L
H
L
L
L
L
L
L
Read with
H
X
Auto Precharge
L
H
L
H
L
H
L
H
L
L
L
L
Write with
H
X
Auto Precharge
L
H
L
H
L
H
L
H
L
L
L
L
/WE
X
H
L
X
H
L
H
L
X
X
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
H
L
X
X
X
H
L
H
L
X
X
BA
X
X
BA
BA
BA
BA
X
L
X
X
BA
BA
BA
BA
X
X
X
BA
BA
BA
BA
BA
X
X
X
BA
BA
BA
BA
BA
X
X
X
BA
BA
X
BA
X
X
X
BA
BA
X
BA
X
ADDR
X
X
X
CA
RA
A10
X
OP Code
X
X
CA, A10
CA, A10
RA
A10
X
X
X
X
CA, A10
CA, A10
RA
A10
X
X
X
X
CA, A10
CA, A10
RA
A10
X
X
X
X
CA, A10
X
RA, A10
X
X
X
X
CA, A10
X
RA, A10
X
Action
X
H
H
L
H
H
L
L
X
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
L
X
H
H
L
L
H
L
NOP
NOP
ILLEGAL
2
ILLEGAL
2
Row Active
NOP
4
Auto-Refresh or Self-Refresh
5
Mode Register write
NOP
NOP
Read
Write
ILLEGAL
2
Precharge
ILLEGAL
NOP (Continue Row Active after Burst ends)
NOP (Continue Row Active after Burst ends)
Reserved
Term Burst, start new Burst Read
Term Burst, start new Burst Write
ILLEGAL
2
Term Burst, execute Row Precharge
ILLEGAL
NOP (Continue Row Active after Burst ends)
NOP (Continue Row Active after Burst ends)
ILLEGAL
2
Term Burst, start new Burst Read
Term Burst, start new Burst Write
ILLEGAL
2
Term Burst, execute Row Precharge
ILLEGAL
NOP (Continue Burst to End and enter Row Precharge)
NOP (Continue Burst to End and enter Row Precharge)
ILLEGAL
2
ILLEGAL
2
ILLEGAL
ILLEGAL
2
ILLEGAL
NOP (Continue Burst to End and enter Row Precharge)
NOP (Continue Burst to End and enter Row Precharge)
ILLEGAL
2
ILLEGAL
2
ILLEGAL
ILLEGAL
2
ILLEGAL
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