IS43R16320B
IC43R16320B
Bank active command interval
Destination row of the consecutive ACT
command
Bank
Row address
address
1. Same
2. Different
State
Operation
Two successive ACT commands can be issued at tRC interval. In between two
successive ACT operations, precharge command should be executed.
Any
Any
ACTIVE
Precharge the bank. tRP after the precharge command, the consecutive ACT
command can be issued.
ACTIVE
IDLE
tRRD after an ACT command, the next ACT command can be issued.
CK
/CK
Command
AACCTTV
ACT
NOP
PRE
NOP
ACT
NOP
Address
BA
ROW: 0
ROW: 1
ROW: 0
Bank0
Active
Bank3
Active
Bank0
Precharge
Bank0
Active
tRRD
tRC
Bank Active to Bank Active
Mode register set to Bank-active command interval
The interval between setting the mode register and executing a bank-active command must be no less than tMRD.
CK
/CK
Command
MRS
NOP
ACT
NOP
Address
CODE
BS and ROW
Mode Register Set
Bank3
Active
tMRD
Integrated Silicon Solution, Inc. — www.issi.com
39
Rev. 00B
06/11/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
