K4S160822D Datasheet, PDF (31/46 Pages) Samsung semiconductor – 2Mx8 SDRAM 1M x 8bit x 2 Banks Synchronous DRAM LVTTL

KM48S2120D
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
A10/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
- 31
Rev.1.0 (Mar. 1999)