參數(shù)資料
型號： UPD4564441
廠商： Elpida Memory, Inc.
英文描述： 64M-bit Synchronous DRAM 4-bank, LVTTL
中文描述： 6400位同步DRAM 4銀行，LVTTL
文件頁數(shù)： 24/85頁
文件大?。?/td> 919K
代理商： UPD4564441
Data Sheet E0149N10
24
μ
PD4564441, 4564841, 4564163
8. Address Bits of Bank-Select and Precharge
Row
A11
A10
A9
A8
A7
A6
A4
A5
A3
A2
A1
A0
(Activate command)
A11
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
x
A10
A9
A8
A7
A6
A4
A5
A3
A2
A1
A0
Col.
(/CAS strobes)
x : Don
’
t care
A12
A13
A12
A13
A12
A13
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
A12
A13
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
A12
A13
Result
Result
Precharge Bank A
Precharge Bank B
Precharge Bank C
Precharge Bank D
Precharge All Banks
A10
0
0
0
0
1
A12
0
0
1
1
x
A13
0
1
0
1
x
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