1HY5DS283222BF(P)
Power-Up Sequence
VDD
VDDQ
tVTD
VTT
VREF
/CLK
CLK
tIS tIH
LVCMOS Low Level
CKE
NOP
PRE
EMRS
MRS
NOP
PRE
AREF
MRS
ACT
RD
CMD
DM
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
ADDR
A10
CODE
CODE
CODE
CODE
CODE
BA0, BA1
DQS
DQ'S
T=200usec
tRP
tMRD
tMRD
tRP
tRFC
tMRD
tXSRD*
Power UP
VDD and CK stable
EMRS Set
MRS Set
(with A8=L)
MRS Set
Reset DLL
(with A8=H)
READ
Precharge All
Non-Read
Command
2 or more
Auto Refresh
Precharge All
* 200 cycle(tXSRD) of CK are required (for DLL locking) before Read Command
Rev. 1.0 / Feb. 2005
16