MB81EDS256445 Datasheet, PDF (26/52 Pages) Fujitsu Component Limited. – MEMORY Consumer FCRAM CMOS 256M Bit (4 bank x 1M word x 64 bit) Consumer Applications Specific Memory for SiP

MB81EDS256445
17. DEEP POWER DOWN ENTRY (DPD)
DEEP POWER DOWN ENTRY (DPD) commands to drive the device in Deep Power Down mode which is the
lowest power consumption but all stored data and the contents of mode registers will be lost. During Deep Power
Down state, all inputs signals except for CKE are “don't care” and all DQs and DQS will be in High-Z. Deep
Power Down mode must be entered on conditions that all DQs are in High-Z and all banks are in IDLE state.
18. DEEP POWER DOWN EXIT (DPDX)
DEEP POWER DOWN EXIT (DPDX) commands to resume the device from Deep Power Down mode. Power
up initialization procedure must be performed after DPDX commands. Refer to the “Power Up Initialization” in
“■ FUNCTIONAL DESCRIPTION”.
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DS05-11456-1E