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參數(shù)資料
| 型號： | μPD45128441 |
| 廠商： | NEC Corp. |
| 英文描述： | 128M-bit Synchronous DRAM(128M 同步DRAM) |
| 中文描述： | 128兆位同步DRAM（128M的同步DRAM）的 |
| 文件頁數(shù)： | 12/84頁 |
| 文件大小： | 693K |
| 代理商： | ΜPD45128441 |
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Preliminary Data Sheet
12
μ
PD45128441, 45128841, 45128163
Fig.4
Column address and write
command
/WE
/CAS
/RAS
/CS
CKE
CLK
H
Add
A10
(Bank select)
Col.
Fig.5
Column address and read
command
/WE
/CAS
/RAS
/CS
CKE
CLK
H
Add
A10
(Bank select)
Col.
Fig.6
Auto refresh command
Add
A10
A12, A13
(Bank select)
/WE
/CAS
/RAS
/CS
CKE
CLK
H
Write command
(/CS, /CAS, /WE = Low, /RAS = High)
If the mode register is in the burst write mode, this command sets the
burst start address given by the column address to begin the burst write
operation. The first write data in burst mode can input with this
command with subsequent data on following clocks.
Read command
(/CS, /CAS = Low, /RAS, /WE = High)
Read data is available after /CAS latency requirements have been met.
This command sets the burst start address given by the column
address.
CBR (auto) refresh command
(/CS, /RAS, /CAS = Low, /WE, CKE = High)
This command is a request to begin the CBR refresh operation. The
refresh address is generated internally.
Before executing CBR refresh, all banks must be precharged.
After this cycle, all banks will be in the idle (precharged) state and
ready for a row activate command.
During t
RC
period (from refresh command to refresh or activate
command), the
μ
PD45128xxx cannot accept any other command.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PD45128441G5 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| PD45128441G5-A10I-9JF | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| PD45128441G5-A10LI-9JF | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| PD45128441G5-A10LT-9JF | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
| PD45128441G5-A10T-9JF | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range) |
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