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参数资料
| 型号： | 48SD3208 |
| 厂商： | Maxwell Technologies, Inc |
| 英文描述： | 256 Mb SDRAM 8-Meg X 8-Bit X 4-Banks |
| 中文描述： | 256 MB的SDRAM的8梅格× 8位× 4，银行 |
| 文件页数： | 11/39页 |
| 文件大小： | 589K |
| 代理商： | 48SD3208 |
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48SD3208
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All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
256Mb (8-Meg X 8-Bit X 4-Banks) SDRAM
01.10.05 Rev 2
Operation of the SDRAM
The following section shows operation examples of 48SD3208.
Note: The SDRAM should be used according to the product capability ( See Pin Description and AC
Characteristics.)
Read/Write Operations:
Bank Active: Before executing a read or write operation, the corresponding bank and the row address must
be activated by the bank active (ACTV) command. An interval of t
RCD is required between the bank active
command input and the following read/write command input.
Read operation: A read operation starts when a read command is input. The output buffer becomes Low-Z
in the (CAS latency - 1) cycle after read command set. The SDRAM can perform a burst read operation.
The burst length can be set to 1, 2, 4, or 8. The start address for a burst read is specified by the column
address and the bank select address (BA0/BA1) at the read command set cycle. In a read operation, data
output starts after the number of clocks specified by the CAS latency. The CAS latency can be set to 2 or 3.
When the burst length is 1, 2, 4, or 8, the D
OUT buffer automatically becomes High-Z at the next clock after
the successive burst-length data has been output.
The CAS latency and burst length must be specified at the mode register.
相关PDF资料 |
PDF描述 |
|---|---|
| 48SD6404RPFE | CAP 1200PF 100V CERAMIC MONO 5% |
| 48SD6404RPFH | 1500PF 100V 5% MONOLITH CERM CAP |
| 48SD6404RPFI | 256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks |
| 48SD6404RPFK | 256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks |
| 48SD6404 | CAP 2.2UF 50V CERAMIC MONO 20% |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 48SD3208RPFE | 制造商:MAXWELL 制造商全称:Maxwell Technologies 功能描述:256 Mb SDRAM 8-Meg X 8-Bit X 4-Banks |
| 48SD3208RPFH | 制造商:MAXWELL 制造商全称:Maxwell Technologies 功能描述:256 Mb SDRAM 8-Meg X 8-Bit X 4-Banks |
| 48SD3208RPFI | 制造商:MAXWELL 制造商全称:Maxwell Technologies 功能描述:256 Mb SDRAM 8-Meg X 8-Bit X 4-Banks |
| 48SD3208RPFK | 制造商:MAXWELL 制造商全称:Maxwell Technologies 功能描述:256 Mb SDRAM 8-Meg X 8-Bit X 4-Banks |
| 48SD6404 | 制造商:MAXWELL 制造商全称:Maxwell Technologies 功能描述:256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks |
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