HY5DU281622ETP-25 HYNIX [Hynix Semiconductor], HY5DU281622ETP-25 Datasheet - Page 13

• Manufacturer Part Number: HY5DU281622ETP-25
• Description: 128M(8Mx16) gDDR SDRAM
• Manufacturer: HYNIX [Hynix Semiconductor]

Rev. 1.0 / Oct. 2005
CKE FUNCTION TRUTH TABLE
Note :
1. CKE and /CS must be kept high for a minimum of 200 stable input clocks before issuing any command.
2. All commands can be stored after 2 clocks from low to high transition of CKE.
3. Illegal, if CK is suspended or stopped during the power down mode.
4. Self refresh can be asserted only from the all banks idle state.
5. Disabling CK may cause malfunction of any banks which are in active state.
When CKE=L, all DQ and UDQS/LDQS should be in Hi-Z state.
ANY STATE
ALL BANKS
REFRESH
Current
DOWN
POWER
OTHER
ABOVE
State
IDLE
THAN
SELF
4
2
1
CKEn-
1
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CKEn
H
H
H
H
H
H
H
H
H
H
H
H
H
X
L
X
L
L
L
L
L
L
L
L
L
L
L
/CS
H
H
H
X
L
L
L
L
X
X
L
L
L
L
X
X
L
L
L
L
L
L
X
X
X
X
X
/RAS
H
H
X
X
H
H
H
X
X
X
H
H
X
X
X
H
H
X
X
X
X
X
L
L
L
L
L
/CAS
H
H
H
H
H
H
H
X
X
L
X
X
X
X
L
X
X
X
L
X
L
L
X
X
X
X
X
/WE
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
/ADD
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Exit self refresh, enter idle after tSREX
Exit self refresh, enter idle after tSREX
See operation command truth table
See operation command truth table
NOP, continue power down mode
Exit power down, enter idle
Exit power down, enter idle
1HY5DU281622ETP
NOP, continue self refresh
Enter self refresh
Exit power down
Exit power down
ILLEGAL
INVALID
INVALID
INVALID
INVALID
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Action
NOP
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