参数资料
型号: V58C2256404SHUR5
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 64M X 4 DDR DRAM, PBGA60
封装: ROHS COMPLIANT, MO-233, FBGA-60
文件页数: 6/60页
文件大小: 1125K
代理商: V58C2256404SHUR5
14
V58C2256(804/404/164)SH Rev. 1.1 July 2010
ProMOS TECHNOLOGIES
V58C2256(804/404/164)SH
Data Strobe Preamble and Postamble Timings for DDR Read Cycles
Consecutive Burst Read Operation and Effects on the Data Strobe Preamble and Postamble
(CAS Latency = 2; Burst Length = 2)
T0
T1
T2
T3
T4
READ
NOP
D0
D1
CK, CK
Command
DQS
DQ
tRPRE(max)
tRPST(min)
tRPRE(min)
tRPST(max)
tDQSQ(max)
tDQSQ(min)
NOP
ReadB
NOP
ReadA
D0A D1A
NOP
D2A D3A
Command
DQS
DQ
Burst Read Operation (CAS Latency = 2; Burst Length = 4)
CK, CK
NOP
D0B D1B D2B D3B
NOP
ReadB
NOP
ReadA
D0A D1A
NOP
D2A D3A
Command
DQS
DQ
Burst Read Operation (CAS Latency = 2; Burst Length = 4)
CK, CK
NOP
D0B D1B D2B D3B
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