參數(shù)資料
型號(hào): W9751G6JB-25A
廠商: WINBOND ELECTRONICS CORP
元件分類: DRAM
英文描述: 32M X 16 DDR DRAM, 0.4 ns, PBGA84
封裝: 12.50 X 8 MM, ROHS COMPLIANT, WBGA-84
文件頁(yè)數(shù): 9/86頁(yè)
文件大?。?/td> 1030K
代理商: W9751G6JB-25A
W9751G6JB
Publication Release Date: Mar. 10, 2010
- 17 -
Revision A02
For proper operation of adjust mode, WL = RL - 1 = AL + CL - 1 clocks and tDS/tDH should be met as
shown in Figure 7. For input data pattern for adjustment, DT0 - DT3 is a fixed order and is not affected
by burst type (i.e., sequential or interleave).
OCD adjust mode
OCD calibration mode exit
WR
WL
DQS
tDS tDH
DT0
EMRS(1)
NOPNOP
NOP
CLK
DQS_in
CMD
DQ_in
DM
NOP
EMRS
NOP
EMRS
CLK
DT1
DT2
DT3
Figure 7—OCD Adjust Mode
7.2.3.3
Drive Mode
Drive mode, both Drive (1) and Drive (0), is used for controllers to measure DDR2 SDRAM Driver
impedance. In this mode, all outputs are driven out tOIT after “enter drive mode” command and all
output drivers are turned-off tOIT after “OCD calibration mode exit” command as shown in Figure 8.
Enter Drive mode
OCD calibration mode exit
EMRS
NOP
CLK
DQS
CMD
DQ
tOIT
DQs high for Drive (1)
DQs low for Drive (0)
DQS high & DQS low for Drive (1), DQS low & DQS high for Drive (0)
CLK
HI-Z
Figure 8—OCD Drive Mode
相關(guān)PDF資料
PDF描述
W9751G8JB-18 DDR DRAM, PBGA84
W9812G21H-6I 4M X 32 SYNCHRONOUS DRAM, 5 ns, PDSO86
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W9812G6JH-6 8M X 16 SYNCHRONOUS DRAM, 5 ns, PDSO54
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W9751G6JB-3 制造商:Winbond Electronics Corp 功能描述:512MB DDRII
W9751G6KB 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M ? 4 BANKS ? 16 BIT DDR2 SDRAM
W9751G6KB-18 制造商:Winbond Electronics Corp 功能描述:IC MEMORY
W9751G6KB-25 功能描述:IC DDR2 SDRAM 512MBIT 84WBGA RoHS:是 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:閃存 - NAND 存儲(chǔ)容量:4G(256M x 16) 速度:- 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:0°C ~ 70°C 封裝/外殼:48-TFSOP(0.724",18.40mm 寬) 供應(yīng)商設(shè)備封裝:48-TSOP I 包裝:Digi-Reel® 其它名稱:557-1461-6
W9751G6KB25A 制造商:WINBOND 制造商全稱:Winbond 功能描述:Double Data Rate architecture: two data transfers per clock cycle