S8S3122X16 Datasheet, PDF (29/44 Pages) Samsung semiconductor – 256K x 16 SDRAM

S8S3122X16
Power Up Sequence
CMOS SDRAM
CLOCK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
CKE
High level is necessary
CS
tRP
tRC
tRC
RAS
CAS
ADDR
Key
RAa
BA
A8/AP
RAa
High-Z
DQ
WE
DQM
High level is necessary
Precharge
(All Banks)
Auto Refresh
Auto Refresh
Mode Register Set
Row Active
(A-Bank)
: Don't care
Ver 0.0 Sep. '01