HYB18M1G320BF QIMONDA [Qimonda AG], HYB18M1G320BF Datasheet - Page 42

• Manufacturer Part Number: HYB18M1G320BF
• Description: DRAMs for Mobile Applications 1-Gbit x32 DDR Mobile-RAM
• Manufacturer: QIMONDA [Qimonda AG]

2.4.10
Power-down is entered when CKE is registered LOW (no
accesses can be in progress). If power-down occurs when all
banks are idle, this mode is referred to as precharge power-
down; if power-down occurs when there is a row active in any
bank, this mode is referred to as active power-down. Entering
power-down deactivates the input and output buffers,
excluding CK, CK and CKE. In power-down mode, CKE LOW
must be maintained, and all other input signals are “Don’t
Care”. The minimum power-down duration is specified by
t
requirements of the device.
The power-down state is synchronously exited when CKE is
registered HIGH (along with a NOP or DESELECT
command). A valid command may be applied
from power-down.
Rev.1.00, 2007-03
02022006-J7N7-GYFP
CKE
. However, power-down duration is limited by the refresh
POWER-DOWN
t
XP
after exit
42
BA0,BA1
A0-A12
CKE
RAS
CAS
WE
CK
CK
CS
Power-Down Entry Command
Power-Down Entry and Exit
= Don't Care
1-Gbit DDR Mobile-RAM
HY[B/E]18M1G320BF
FIGURE 36
FIGURE 37
Data Sheet