- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄202173 > V59C1G01808QBLF-19A (PROMOS TECHNOLOGIES INC) DDR DRAM, PBGA68 PDF資料下載
參數(shù)資料
| 型號： | V59C1G01808QBLF-19A |
| 廠商： | PROMOS TECHNOLOGIES INC |
| 元件分類： | DRAM |
| 英文描述： | DDR DRAM, PBGA68 |
| 封裝： | ROHS COMPLIANT, FBGA-68 |
| 文件頁數(shù)： | 27/80頁 |
| 文件大?。?/td> | 971K |
| 代理商： | V59C1G01808QBLF-19A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當前第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁
33
ProMOS TECHNOLOGIES
V59C1G01(408/808)QB
V59C1G01(408/808)QB Rev. 1.1 December 2008
Write Data Mask
One write data mask input (DM) for x4 and x8 components is supported on DDR2 SDRAMS, consistent
with the implementation on DDR SDRAMs. It has identical timings on write operations as the data bits,
and though used in a uni-directional manner,is internally loaded identically to data bits to insure matched
system timing. Data mask is not used during read cycles. If DM is high during a write burst coincident
with the write data, the write data bit is not written to the memory. For x8 components the DM function
is disabled, when RDQS / RDQS are enabled by EMRS.
Write Data Mask Timing
DQS,
DQS
t DQSH
tDQSL
t WPRE
WPST
t
DQ
Din
tDS
DH
DM
don’t care
Din
t
.
Burst Write Operation with Data Mask : RL = 3 (AL = 0, CL = 3), WL = 2, tWR = 3 , BL = 4
NOP
WRITE A
T0
T2
T1
T3
T4
T5
T6
T7
Tn
WL = RL-1 = 2
DM
CMD
DQ
NOP
tWR
<= tDQSS
Precharge
Bank A
Activate
tRP
DQS,
DQS
DM
DIN A0
DIN A3
CK, CK
DIN A1 DIN A2
相關PDF資料 |
PDF描述 |
|---|---|
| V5F110BB3 | SNAP ACTING/LIMIT SWITCH, SPDT, MOMENTARY, 0.5A, 125VDC, 2.4mm, PANEL MOUNT |
| V62/07602-02XE | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO6 |
| V62/07602-03XE | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 3 V, PDSO6 |
| V62C2162048LL-100T | 128K X 16 STANDARD SRAM, 100 ns, PDSO44 |
| V62C2162048L-45T | 128K X 16 STANDARD SRAM, 45 ns, PDSO44 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| V5A010CB | 制造商:Honeywell Sensing and Control 功能描述:MICROSWITCH V5 PIN PLUNGER |
| V5A010CB | 制造商:Honeywell Sensing and Control 功能描述:MICROSWITCH V5 PIN PLUNGER |
| V5A010CB4D | 制造商:Honeywell Sensing and Control 功能描述:MICROSWITCH V5 ROLLER LEVER |
| V5A010CB4D | 制造商:Honeywell Sensing and Control 功能描述:MICROSWITCH V5 ROLLER LEVER |
| V5A010CB4E | 制造商:Honeywell Sensing and Control 功能描述:MICROSWITCH V5 ROLLER LEVER |
發(fā)布緊急采購，3分鐘左右您將得到回復。