is43lr32200b-6bl Integrated Silicon Solution, Inc., is43lr32200b-6bl Datasheet - Page 16

• Manufacturer Part Number: is43lr32200b-6bl
• Description: 512k X 32bits X 4banks Mobile Ddr Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

Rev. 00A | Feb. 2011
Table6 : CKE Truth Table
Note:
1. CKEn is the logic state of CKE at clock edge
2. Current state is the state of Mobile DDR immediately prior to clock edge
3. COMMANDn is the command registered at clock edge n, and ACTION
4. All states and sequences not shown are illegal or reserved.
5. DESELECT and NOP are functionally interchangeable.
6. Power Down exit time (tXP) should elapse before a command other than NOP or DESELECT is issued.
7. SELF REFRESH exit time (tXSR) should elapse before a command other than NOP or DESELECT is issued.
8. The Deep Power-Down exit procedure must be followed as discussed in the Deep Power-Down section of the Functional Description.
9. The clock must toggle at least one time during the tXP period.
10. The clock must toggle at least once during the tXSR time.
CKEn-1
H
H
H
H
H
L
L
L
L
L
L
CKEn
H
H
H
H
L
L
L
L
L
L
L
Deep Power Down
Deep Power Down
Current State
Bank(s) Active
All Banks Idle
All Banks Idle
All Banks Idle
n
Power Down
Power Down
Self Refresh
Self Refresh
; CKE
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n
-1 was the state of CKE at the previous clock edge.
See the other Truth Tables
BURST TERMINATE
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NOP or DESELECT
NOP or DESELECT
NOP or DESELECT
NOP or DESELECT
NOP or DESELECT
AUTO REFRESH
COMMAND
n
is the result of COMMAND
n
X
X
X
.
n
Maintain Deep Power Down
Exit Deep Power Down
Maintain Power Down
Maintain Self Refresh
Active Power Down
Self Refresh Entry
Enter Deep Power
Exit Power Down
Precharge Power
Exit Self Refresh
Down entry
ACTION
n
.
Down
Entry
IS43/46LR32200B
n
Advanced Information
5,7,10
Note
5,6,9
5,8
5
5
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