参数资料
型号: V59C1G01808QALF19E
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 128M X 8 DDR DRAM, BGA68
封装: ROHS COMPLIANT, FBGA-68
文件页数: 6/79页
文件大小: 1028K
代理商: V59C1G01808QALF19E
14
V59C1G01(408/808/168)QA Rev. 1.3 June 2008
ProMOS TECHNOLOGIES
V59C1G01(408/808/168)QA
Off-Chip Driver (OCD) Impedance Adjustment
DDR2 SDRAM supports driver calibration feature and the flow chart below is an example of the sequence.
Every calibration mode command should be followed by “OCD calibration mode exit” before any other com-
mand being issued. MRS should be set before entering OCD impedance adjustment and ODT (On Die Termi-
nation) should be carefully controlled depending on system environment.
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
EMRS: OCD calibration mode exit
ALL OK
EMRS: OCD calibration mode exit
End
相关PDF资料
PDF描述
V59C1G01808QALF37E 128M X 8 DDR DRAM, BGA68
V59C1G01808QAUF37H 128M X 8 DDR DRAM, PBGA68
V59C1512804QALP19A 64M X 8 DDR DRAM, PBGA68
V59C1512804QAUF19AI 64M X 8 DDR DRAM, PBGA68
V59C1512804QAUP19AH 64M X 8 DDR DRAM, PBGA68
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