A43E26161
Deep Power Down Mode Exit
CLK
CKE
CS
RAS
CAS
WE
200 us
t
RP
tRC
New
Mode
Register Mode
Set Register Set
Extended
Deep Power
Down Exit
All Banks
Precharge Refresh
Auto
Auto
Refresh
Command
Accepted
Here
The deep power down mode is exited by asserting CKE high. After the exit, the following sequence is needed to enter a new
command:
1. Maintain NOP input conditions for a minimum of 200µs
2. Issue precharge commands for all banks of the device
3. Issue eight or more auto-refresh commands
4. Issue a mode register set command to initialize the mode register
5. Issue an extended mode register set command to initialize the extended mode register
(December, 2004, Version 1.0)
37
AMIC Technology, Corp.
AMICC [ AMIC TECHNOLOGY ]
