EDD10161BBH-5BTS-F ELPIDA [Elpida Memory], EDD10161BBH-5BTS-F Datasheet - Page 25

• Manufacturer Part Number: EDD10161BBH-5BTS-F
• Manufacturer: ELPIDA [Elpida Memory]

Power-Down Mode and CKE Control
DDR Mobile RAM will be into power-down mode at the second CK rising edge after CKE to be low level with NOP or
DESL command at first CK rising edge after CKE signal to be low.
However, if the CKE has one clock cycle high and on clock cycle low just as below, even DDR Mobile RAM will not
enter power-down mode, this command flow does not hurt any data and can be done.
Preliminary Data Sheet E1444E30 (Ver. 30)
Command
Address
Notes: 1. Valid*
CKE
CK
/CK
Command
2. Valid*
Note: Assume PRE and ACT command is closing and activating same bank.
CKE
CK
/CK
power-down mode will be active power-down mode, while it will be precharge power down mode,
if Valid*
Valid*
Valid*
2
1
can be any command as long as all of specified AC parameters are satisfied.
1
can be either Activate command or Precharge command, When Valid*
will be Precharge command.
1
1
PRE
NOP
Power-Down Entry and Exit
CKE Control
NOP
25
Power-down mode
NOP
NOP
ACT
EDD10161BBH-TS
Valid*
Valid*
1
is Activate command,
2
2
NOP