参数资料
型号: V59C1512164QALP37I
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 32M X 16 DDR DRAM, PBGA92
封装: GREEN, FBGA-92
文件页数: 36/79页
文件大小: 1028K
代理商: V59C1512164QALP37I
41
ProMOS TECHNOLOGIES
V59C1G01(408/808/168)QA
V59C1G01(408/808/168)QA Rev. 1.3 June 2008
Burst Write followed by Precharge
Minimum Write to Precharge command spacing to the same bank = WL + BL/2 + tWR. For write cycles, a
delay must be satisfied from the completion of the last burst write cycle until the Precharge command can be
issued. This delay is known as a write recovery time (t WR ) referenced from the completion of the burst write
to the Precharge command. No Precharge command should be issued prior to the tWR delay, as DDR2
SDRAM does not support any burst interrupt by a Precharge command. tWR is an analog timing parameter
(see the AC table in this datasheet) and is not the programmed value for tWR in the MRS.
Burst Write followed by Precharge : WL = (RL - 1) = 3, BL = 4, tWR = 3
Burst Write followed by Precharge : WL = (RL - 1) = 4, BL = 4, tWR = 3
NOP
WRITE A
Post CAS
T0
T2
T1
T3
T4
T5
T6
T7
T8
WL = 3
BW-P3
CMD
DQ
NOP
DIN A0 DIN A1 DIN A2 DIN A3
tWR
Completion of
the Burst Write
Precharge
A
NOP
DQS,
DQS
CK, CK
NOP
WRITE A
Post CAS
T0
T2
T1
T3
T4
T5
T6
T7
T9
WL = 4
BW-P4
CMD
DQ
NOP
DIN A0 DIN A1 DIN A2 DIN A3
tWR
Completion of
the Burst Write
Precharge
A
NOP
DQS,
DQS
CK, CK
相关PDF资料
PDF描述
V59C1512164QAUJ5I 32M X 16 DDR DRAM, PBGA92
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