HYB18M1G320BF QIMONDA [Qimonda AG], HYB18M1G320BF Datasheet - Page 47

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

1) This table applies when CKEn-1 was HIGH and CKEn is HIGH (see
2) This table describes alternate bank operation, except where noted, i.e., the current state is for bank n and the commands shown are those
3) Current state definitions:
Rev.1.00, 2007-03
02022006-J7N7-GYFP
Current State
Any
Idle
Row Activating,
Active, or
Precharging
Read (Auto-
Precharge
Disabled)
Write (Auto-
Precharge
Disabled)
Read (with Auto-
Precharge)
Write (with Auto-
Precharge)
power-down or self refresh).
allowed to be issued to bank m (assuming that bank m is in such a state that the given command is allowable). Exceptions are covered in
the notes below.
Idle:
The bank has been precharged, and
Row Active:
A row in the bank has been activated, and
accesses are in progress.
Read:
A READ burst has been initiated, with Auto Precharge disabled, and has not yet terminated or been
terminated.
Write:
A WRITE burst has been initiated, with Auto Precharge disabled, and has not yet terminated or been
terminated.Read with AP Enabled:
Starts with registration of a READ command with Auto Precharge enabled and ends when
in the idle state.
Write with AP Enabled:
Starts with registration of a WRITE command with Auto Precharge enabled and ends when
is in the idle state).
H
L
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CS
X
H
X
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
RAS CAS
X
H
X
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
t
RP
has been met.
X
H
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
WE
t
RCD
has been met. No data bursts / accesses and no register
Command / Action
DESELECT (NOP / continue previous operation)
NO OPERATION (NOP / continue previous operation)
Any command otherwise allowed to bank m
ACTIVE (select and activate row)
READ (select column and start Read burst)
WRITE (select column and start Write burst)
PRECHARGE (Deactivate row in bank or banks)
ACTIVE (select and activate row)
READ (truncate Read and start new Read burst)
WRITE (truncate Read and start Write burst)
PRECHARGE (Deactivate row in bank or banks)
ACTIVE (select and activate row)
READ (truncate Write and start Read burst)
WRITE (truncate Write and start new Write burst)
PRECHARGE (Deactivate row in bank or banks)
ACTIVE (select and activate row)
READ (truncate Read and start new Read burst)
WRITE (truncate Read and start Write burst)
PRECHARGE (deactivate row in bank or banks)
ACTIVE (select and activate row)
READ (truncate Write and start Read burst)
WRITE (truncate Write and start new Write burst)
PRECHARGE (Deactivate row in bank or banks)
Current State Bank n - Command to Bank m (different bank)
47
Table 17
) and after
t
XP
t
or
RP
t
RP
t
XSR
has been met. Once
has been met. Once
has been met (if the previous state was
1-Gbit DDR Mobile-RAM
HY[B/E]18M1G320BF
t
RP
t
TABLE 19
RP
is met, the bank is
Note
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)7)
1)2)3)4)5)6)7)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)7)
1)2)3)4)5)6)7)8)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)7)9)
1)2)3)4)5)6)7)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)7)
1)2)3)4)5)6)7)8)
1)2)3)4)5)6)
1)2)3)4)5)6)
1)2)3)4)5)6)7)
1)2)3)4)5)6)7)
1)2)3)4)5)6)
is met, the bank
Data Sheet