HY5S5B6ELF-HE Datasheet, PDF (17/27 Pages) Hynix Semiconductor – 256MBit MOBILE SDR SDRAMs based on 4M x 4Bank x16 I/O

1
256Mbit (16Mx16bit) Mobile SDR Memory
HY5S5B6ELF(P)-xE Series
CKE Enable(CKE) Truth TABLE (Sheet 2 of 1)
CKE
Command
Current
State
Previous Current
Cycle Cycle
CS
RAS CAS
WE
BA0,
BA1
A11-
A0
Action
H
X
X
X
X
X
X
X INVALID
L
H
H
X
X
X
X
X
Exit Self Refresh with
Device Deselect
L
Self
Refresh
L
H
LH HHX
X
Exit Self Refresh with
No Operation
H
LH HL X
X ILLEGAL
L
H
L
H
L
X
X
X ILLEGAL
L
H
LL
XXX
X ILLEGAL
L
L
X
X
X
X
X
X Maintain Self Refresh
H
X
X
X
X
X
X
X INVALID
L
Power
Down
L
H
HX
X
X
X
LH HHX
X _{Power Down mode exit,}
X ^{all banks idle}
L
XXX
X
H
LX
LXX
X ILLEGAL
X
X
L
X
X
L
L
X
X
X
X
X
X Maintain Power Down Mode
H
X
X
X
X
X
X
X INVALID
Deep
Power
L
Down
L
H
X
X
X
X
X
X
Deep Power
Down mode exit
L
X
X
X
X
X
X
Maintain Deep
Power Down Mode
Notes
1
2
2
2
2
2
1
2
2
1
5
Rev 1.0 / Jul. 2005
17