h55s1g32mfp-60 Hynix Semiconductor, h55s1g32mfp-60 Datasheet - Page 24

• Manufacturer Part Number: h55s1g32mfp-60
• Description: 32mx32bit Mobile Sdram
• Manufacturer: Hynix Semiconductor

CKE Enable(CKE) Truth TABLE
Notes :
1. For the given current state CKE must be low in the previous cycle.
2. When CKE has a low to high transition, the clock and other inputs are re-enabled asynchronously.
3. The address inputs depend on the command that is issued.
4. The Precharge Power Down mode, the Self Refresh mode, and the Mode Register Set can only be entered
5. When CKE has a low to high transition, the clock and other inputs are re-enabled asynchronously.
Rev 1.2 / Jun. 2008
listed above
other than
Any State
Current
When exiting deep power down mode, a NOP (or Device Deselect) command is required on the first positive edge of
When exiting power down mode, a NOP (or Device Deselect) command is required on the first positive edge of
clock after CKE goes high.
from the all banks idle state.
clock after CKE goes high and is maintained for a minimum 200usec.
State
Banks
Idle
All
Previous
Cycle
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
CKE
Current
Cycle
H
H
H
H
H
X
H
H
L
L
L
L
L
L
L
CS
H
H
X
X
X
X
X
L
L
L
L
L
L
L
L
(Sheet 2 of 2)
RAS
H
H
X
L
L
L
X
L
L
L
X
X
X
X
X
CAS
Command
H
H
X
X
X
X
X
X
X
X
X
L
L
L
L
WE
H
H
X
X
X
L
X
X
X
L
X
X
X
X
X
BA0,
BA1
X
X
X
X
X
X
X
OP CODE
OP CODE
1Gbit (32Mx32bit) Mobile SDR Memory
A
max
A0
X
X
X
X
X
X
X
-
Refer to the idle State section
of the Current State
Truth Table
Auto Refresh
Mode Register Set
Refer to the idle State section
of the Current State
Truth Table
Entry Self Refresh
Mode Register Set
Power Down
Refer to operations of
the Current State
Truth Table
Begin Clock Suspend
next cycle
Exit Clock Suspend
next cycle
Maintain Clock Suspend
H55S1G(2/3)2MFP Series
Action
Notes
11
3
3
3
3
3
3
4
4
4
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