VDD8616A8A Datasheet, PDF (8/9 Pages) List of Unclassifed Manufacturers – Double Data Rate SDRAM

V-Data
VDD8616A8A
Command Truth-Table
SYM.
Command
MRS Mode Register Set
NOP No Operation
ACT Bank Active
READ Read
READA _{Read with Auto Precharge}
WRIT Write
WRITA _{Write with Auto Precharge}
PREA _{Precharge All Bank}
CKEn-1 CKEn /CS /RAS /CAS /WE DM ADDR A10/AP BS
H
X L L L L X CA CA L
H
X L HHH X
X
H
XL LHHX
V
V
L
H
XLHL HX V
V
H
L
H
XLHL L XV
V
H
H
XL LHL X X
H
X
BST Burst Stop
AREF Auto Refresh
SELF
SELEX Self Refresh
PD
Precharge
Power down
PDEX
Entry H
Exit L
Entry H
Exit L
H
XLHHL X
H
HLL LHX
L
LLL H
X
HXX X
H
X
LHH H
HXX X
L
X
LHH H
HXX X
H
X
LHH X
X
X
X
X
WDE
Enable H
X
XXX X
L
Data write
X
WDD
Disable H
X
XXX X
H
Rev 2 April, 2002
8