參數(shù)資料
型號: μPD4564323
廠商: NEC Corp.
英文描述: 64M-bit Synchronous DRAM(64M 同步動態(tài)RAM)
中文描述: 6400位同步DRAM(6400同步動態(tài)RAM)的
文件頁數(shù): 22/82頁
文件大?。?/td> 659K
代理商: ΜPD4564323
22
μ
PD4564323
Preliminary Data Sheet
8. Address Bits of Bank-Select and Precharge
A10
A9
A8
A7
A6
A4
A5
A3
A2
A1
A0
Row
(Activate command)
A10
A9
A8
A7
A6
A4
A5
A3
A2
A1
A0
(Precharge command)
disables Auto-Precharge
(End of Burst)
enables Auto-Precharge
(End of Burst)
0
1
A10
A9
A8
A7
A6
A4
A5
A3
A2
A1
A0
Col.
(/CAS strobes)
x : Don’t care
BA0 BA1
BA0
BA1
BA0
BA1
Select Bank A
“Activate” command
Select Bank B
“Activate” command
Select Bank C
“Activate” command
Select Bank D
“Activate” command
0
0
1
1
0
1
0
1
BA1
BA0
Result
enables Read/Write
commands for Bank A
enables Read/Write
commands for Bank B
enables Read/Write
commands for Bank C
enables Read/Write
commands for Bank D
0
0
1
1
0
1
0
1
BA1
BA0
Result
Result
Precharge Bank A
Precharge Bank B
Precharge Bank C
Precharge Bank D
Precharge All Banks
A10
0
0
0
0
1
BA1
0
0
1
1
x
BA0
0
1
0
1
x
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