HYB18L128160BC-7.5 QIMONDA [Qimonda AG], HYB18L128160BC-7.5 Datasheet - Page 43

• Manufacturer Part Number: HYB18L128160BC-7.5
• Description: DRAMs for Mobile Applications 128-Mbit Mobile-RAM
• Manufacturer: QIMONDA [Qimonda AG]

Table 16
1) This table applies when CKEn-1 was HIGH and CKEn is HIGH and after t
2) This table describes alternate bank operation, except where noted, i.e., the current state is for bank n and the commands
3) Current state definitions:
4) AUTO REFRESH, SELF REFRESH and MODE REGISTER SET commands may only be issued when all banks are idle.
5) A BURST TERMINATE command cannot be issued to another bank; it applies to the bank represented by the current state
6) All states and sequences not shown are illegal or reserved.
Data Sheet
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)
Refresh).
shown are those 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 t
Row Active:A row in the bank has been activated, and t
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 t
met. Once t
Write with AP
Enabled:Starts with registration of a WRITE command with Auto Precharge enabled and ends when t
met. Once t
only.
Current State Bank n - Command to Bank m (different bank)
RP
RP
is met, the bank is in the idle state.
is met, the bank 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 WE Command / Action
X
H
X
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
X
H
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
RP
DESELECT (NOP / continue previous operation)
NO OPERATION (NOP / continue previous operation)
Any command otherwise allowed to bank n
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 (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 (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 (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 (select column and start READ burst)
WRITE (select column and start WRITE burst)
PRECHARGE (deactivate row in bank or banks)
has been met.
RCD
43
has been met. No data bursts/accesses and no register
Functional DescriptionFunction Truth Tables
RC
has been met (if the previous state was Self
HY[B/E]18L128160B[C/F]-7.5
128-Mbit Mobile-RAM
05282004-NZNK-8T0D
Rev. 1.71, 2007-01
RP
RP
has been
has been
Notes
1)2)3)4)5)6)
to
to
to
to 7)
to
to
to
to
to 8)
to
to
to
to
to
to
to , 9)
to
to
to
to ,
to ,
to