EDS1616CGTA Datasheet, PDF (45/49 Pages) Elpida Memory – 16M bits SDRAM

EDS1616CGTA
Power Down Mode
CLK
CKE
CKE Low
/CS
/RAS
/CAS
/WE
BS
Address
E UDQM
LDQM
DQ (input)
OL^{DQ (output)}
A10=1
tRP
Precharge command Power down entry
If needed
R: a
High-Z
Power down cycle
Power down
mode exit
/RAS-/CAS delay = 3
Active Bank 0 /CAS latency = 3
Burst length = 4
= VIH or VIL
Initialization Sequence
CLK
0 1 2 3 4 5 6 7 8 9 10
CKE
VIH
/CS
P ^/RAS
/CAS
/WE
Address
valid
r _UDQM
VIH
LDQM
o DQ
tRP
tRC
All banks
duct ^Precharge
Auto Refresh
Auto Refresh
48 49 50 51 52 53 54 55
code
Valid
High-Z
tRC
lMRD
Mode register
Set
Bank active
If needed
Preliminary Data Sheet E0788E20 (Ver. 2.0)
45