參數(shù)資料
型號: HY5PS12423LF
英文描述: 128Mx4|1.8V|8K|D43/D44/D54/D55|DDR II SDRAM - 512M
中文描述: 128Mx4 | 1.8 | 8K的| D43/D44/D54/D55 |的DDR II內(nèi)存- 512M
文件頁數(shù): 30/66頁
文件大?。?/td> 862K
代理商: HY5PS12423LF
Rev. 0.52/Nov. 02 30
HY5PS12423(L)F
HY5PS12823(L)F
HY5PS121623(L)F
OFF CHIP DRIVER(OCD) IMPEDANCE ADJUSTMENT
DDR-II SDRAM supports driver calibration feature and the flow chart below is an example of sequence. Every calibra-
tion mode command should be followed by “OCD calibration mode exit” before any other command being issued. MRS
should be set before entering OCD impedance adjustment.
Start
EMRS: Drive(1)
DQ & DQS High:DQS Low
Test
EMRS: OCD calibration mode exit
EMRS :
Enter Adjust Mode
BL=4 code input to all
DQs
Inc, Dec, or NOP
EMRS: OCD calibration mode exit
EMRS: Drive(0)
DQ & DQS Low:DQS High
Test
EMRS: OCD calibration mode exit
EMRS :
Enter Adjust Mode
BL=4 code input to all
DQs
Inc, Dec, or NOP
EMRS: OCD calibration mode exit
Need Calibration
Need Calibration
EMRS: OCD calibration mode exit
ALL OK
ALL OK
EMRS: OCD calibration mode exit
End
相關(guān)PDF資料
PDF描述
HY5PS12823F 64Mx8|1.8V|8K|D43/D44/D54/D55|DDR II SDRAM - 512M
HY5PS12823LF 64Mx8|1.8V|8K|D43/D44/D54/D55|DDR II SDRAM - 512M
HY5P Current Transducers HY 5 to 25-P/SP1
HY5R256HC -|2.5V|8K|40|Direct RDRAM - 256M
HY5R288HC -|2.5V|8K|40|Direct RDRAM - 288M
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