参数资料
型号: V55C3256164VGLK-7HPC
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: SYNCHRONOUS DRAM, PBGA54
封装: GREEN, MO-210, FBGA-54
文件页数: 46/55页
文件大小: 711K
代理商: V55C3256164VGLK-7HPC
50
V55C3256164VG Rev. 1.0 September 2008
ProMOS TECHNOLOGIES
V55C3256164VG
Complete List of Operation Commands
SDRAM Function Truth Table
CURRENT
STATE1
CS
RAS
CAS
WE
BS
Addr
ACTION
Idle
H
L
X
H
L
X
H
L
H
L
X
H
L
X
H
L
H
L
X
BS
X
Op-
X
RA
AP
X
Code
NOP or Power Down
NOP
ILLEGAL2
Row (&Bank) Active; Latch Row Address
NOP4
Auto-Refresh or Self-Refresh5
Mode reg. Access5
Row Active
H
L
X
H
L
X
H
L
H
L
X
H
L
H
L
X
BS
X
CA,AP
X
AP
X
NOP
Begin Read; Latch CA; DetermineAP
Begin Write; Latch CA; DetermineAP
ILLEGAL2
Precharge
ILLEGAL
Read
H
L
X
H
L
X
H
L
H
L
X
H
L
H
L
H
L
X
BS
X
CA,AP
X
AP
X
NOP (Continue Burst to End;>Row Active)
Burst Stop Command > Row Active
Term Burst, New Read, DetermineAP3
Term Burst, Start Write, DetermineAP3
ILLEGAL2
Term Burst, Precharge
ILLEGAL
Write
H
L
X
H
L
X
H
L
H
L
X
H
L
H
L
H
L
X
BS
X
CA,AP
X
AP
X
NOP (Continue Burst to End;>Row Active)
Burst Stop Command > Row Active
Term Burst, Start Read, DetermineAP3
Term Burst, New Write, DetermineAP3
ILLEGAL2
Term Burst, Precharge3
ILLEGAL
Read
with
Auto
Precharge
H
L
X
H
L
X
H
L
H
L
X
H
L
H
L
H
L
X
BS
X
BS
X
AP
X
NOP (Continue Burst to End;> Precharge)
ILLEGAL2
ILLEGAL
ILLEGAL2
ILLEGAL
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