V54C3128404V View Datasheet(PDF) - Mosel Vitelic Corporation
Part Name
Description
MFG CO.
V54C3128404V Datasheet PDF : 45 Pages
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MOSEL VITELIC
V54C3128(16/80/40)4V(BGA)
Complete List of Operation Commands
SDRAM Function Truth Table
CURRENT
STATE1
CS
Idle
H
L
L
L
L
L
L
L
Row Active H
L
L
L
L
L
L
Read
H
L
L
L
L
L
L
L
Write
H
L
L
L
L
L
L
L
Read
H
with
L
Auto
L
Precharge L
L
L
L
L
RAS
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
X
H
H
H
H
L
L
L
X
H
H
H
H
L
L
L
X
H
H
H
H
L
L
L
CAS
X
H
H
L
H
H
L
L
X
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
H
L
X
H
H
L
L
H
H
L
WE
X
H
L
X
H
L
H
L
X
X
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
BS
X
X
BS
BS
BS
BS
X
Op-
X
X
BS
BS
BS
BS
X
X
X
BS
BS
BS
BS
BS
X
X
X
BS
BS
BS
BS
BS
X
X
X
BS
BS
X
BS
BS
X
Addr
X
X
X
X
RA
AP
X
Code
X
X
CA,AP
CA,AP
X
AP
X
X
X
X
CA,AP
CA,AP
X
AP
X
X
X
X
CA,AP
CA,AP
X
AP
X
X
X
X
X
X
X
AP
X
ACTION
NOP or Power Down
NOP
ILLEGAL2
ILLEGAL2
Row (&Bank) Active; Latch Row Address
NOP4
Auto-Refresh or Self-Refresh5
Mode reg. Access5
NOP
NOP
Begin Read; Latch CA; DetermineAP
Begin Write; Latch CA; DetermineAP
ILLEGAL2
Precharge
ILLEGAL
NOP (Continue Burst to End;>Row Active)
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
NOP (Continue Burst to End;>Row Active)
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
NOP (Continue Burst to End;> Precharge)
NOP (Continue Burst to End;> Precharge)
ILLEGAL2
ILLEGAL2
ILLEGAL
ILLEGAL2
ILLEGAL2
ILLEGAL
V54C3128(16/80/40)4V(BGA) Rev. 1.2 September 2001
41
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