edd25163hbh-ls Elpida Memory, Inc., edd25163hbh-ls Datasheet - Page 47

• Manufacturer Part Number: edd25163hbh-ls
• Description: 256m Bits Ddr Mobile Ram
• Manufacturer: Elpida Memory, Inc.

Initialize Sequence
Preliminary Data Sheet E1434E21 (Ver. 2.1)
DQ, DQS
Address
VDDQ
/RAS
/CAS
VDD
CKE
/WE
BA0
BA1
A10
/CK
/CS
DM
CK
VDD/VDDQ
powered up
clock stable
VIH
200µs
High-Z
Clock cycle is necessary
is necessary
tCK
Precharge
Command
All Banks
tRP
Auto-Refresh
is necessary
Command
2 refresh cycles are necessary
tRFC
47
Auto-Refresh
is necessary
Command
tRFC
Register Set
is necessary
Address key
Command
Mode
EDD25163HBH-LS
tMRD
Register Set
is necessary
Address key
Command
Extended
Mode
tMRD
Command
Activate
= Don't care