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| 型号： | W9864G6JH-7 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | DRAM |
| 英文描述： | 4M X 16 SYNCHRONOUS DRAM, 5.5 ns, PDSO54 |
| 封装： | 0.400 INCH, ROHS COMPLIANT, TSSOP2-54 |
| 文件页数： | 43/43页 |
| 文件大小： | 662K |
| 代理商： | W9864G6JH-7 |
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W9864G6JH
Publication Release Date: Aug. 31, 2010
- 9 -
Revision A02
7.11 Burst Stop Command
A Burst Stop Command may be used to terminate the existing burst operation but leave the bank
open for future Read or Write Commands to the same page of the active bank, if the burst length is full
page. Use of the Burst Stop Command during other burst length operations is illegal. The Burst Stop
Command is defined by having RAS and CAS high with CS and WE low at the rising edge of
the clock. The data DQs go to a high impedance state after a delay, which is equal to the CAS
Latency in a burst read cycle, interrupted by Burst Stop.
7.12 Addressing Sequence of Sequential Mode
A column access is performed by increasing the address from the column address which is input to
the device. The disturb address is varied by the Burst Length as shown in Table 2.
Table 2 Address Sequence of Sequential Mode
DATA
ACCESS ADDRESS
BURST LENGTH
Data 0
n
BL = 2 (disturb address is A0)
Data 1
n + 1
No address carry from A0 to A1
Data 2
n + 2
BL = 4 (disturb addresses are A0 and A1)
Data 3
n + 3
No address carry from A1 to A2
Data 4
n + 4
Data 5
n + 5
BL = 8 (disturb addresses are A0, A1 and A2)
Data 6
n + 6
No address carry from A2 to A3
Data 7
n + 7
7.13 Addressing Sequence of Interleave Mode
A column access is started in the input column address and is performed by inverting the address bit
in the sequence shown in Table 3.
Table 3 Address Sequence of Interleave Mode
DATA
ACCESS ADDRESS
BURST LENGTH
Data 0
A8 A7 A6 A5 A4 A3 A2 A1 A0
BL = 2
Data 1
A8 A7 A6 A5 A4 A3 A2 A1 A0
Data 2
A8 A7 A6 A5 A4 A3 A2 A1 A0
BL = 4
Data 3
A8 A7 A6 A5 A4 A3 A2 A1 A0
Data 4
A8 A7 A6 A5 A4 A3 A2 A1 A0
BL = 8
Data 5
A8 A7 A6 A5 A4 A3 A2 A1 A0
Data 6
A8 A7 A6 A5 A4 A3 A2 A1 A0
Data 7
A8 A7 A6 A5 A4 A3 A2 A1 A0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W9864G6JH-7S | 制造商:WINBOND 制造商全称:Winbond 功能描述:Self Refresh Current: Standard and Low Power, Sequential and Interleave Burst |
| W9864G6JT | 制造商:WINBOND 制造商全称:Winbond 功能描述:1M ? 4 BANKS ? 16 BITS SDRAM |
| W9864G6JT-6 | 制造商:Winbond Electronics Corp 功能描述:IC SDRAM 64MBIT 166MHZ 制造商:Winbond Electronics Corp 功能描述:IC SDRAM 64MBIT 166MHZ 54TFBGA |
| W987D2HB | 制造商:WINBOND 制造商全称:Winbond 功能描述:128Mb Mobile LPSDR |
| W987D2HBGX6E | 制造商:WINBOND 制造商全称:Winbond 功能描述:128Mb Mobile LPSDR |
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