参数资料
型号: HY5PS1G421LM
厂商: Hynix Semiconductor Inc.
英文描述: 1Gb DDR2 SDRAM(DDP)
中文描述: 1G DDR2内存(铂)
文件页数: 55/79页
文件大小: 1109K
代理商: HY5PS1G421LM
Rev. 0.2 / Oct. 2005
55
1
HY5PS12421(L)M
HY5PS12821(L)M
2.11 No Operation Command
The No Operation command should be used in cases when the DDR2 SDRAM is in an idle or a wait state.
The purpose of the No Operation command (NOP) is to prevent the DDR2 SDRAM from registering any
unwanted commands between operations. A No Operation command is registered when CS is low with
RAS, CAS, and WE held high at the rising edge of the clock. A No Operation command will not terminate a
previous operation that is still executing, such as a burst read or write cycle.
2.12 Deselect Command
The Deselect command performs the same function as a No Operation command. Deselect command
occurs when CS is brought high at the rising edge of the clock, the RAS, CAS, and WE signals become
don’t cares.
相关PDF资料
PDF描述
HY5PS1G421LM-C4 1Gb DDR2 SDRAM(DDP)
HY5PS1G421LM-E3 1Gb DDR2 SDRAM(DDP)
HY5PS1G421M 1Gb DDR2 SDRAM(DDP)
HY5PS1G421M-C4 1Gb DDR2 SDRAM(DDP)
HY5PS1G421M-E3 1Gb DDR2 SDRAM(DDP)
相关代理商/技术参数
参数描述
HY5PS1G421LM-C4 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:1Gb DDR2 SDRAM(DDP)
HY5PS1G421LM-E3 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:1Gb DDR2 SDRAM(DDP)
HY5PS1G421M 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:1Gb DDR2 SDRAM(DDP)
HY5PS1G421M-C4 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:1Gb DDR2 SDRAM(DDP)
HY5PS1G421M-E3 制造商:HYNIX 制造商全称:Hynix Semiconductor 功能描述:1Gb DDR2 SDRAM(DDP)