EDD2516AKTA-E
A Write command to the consecutive Read command interval: To complete the burst operation
Destination row of the consecutive read
command
Bank
Row address State
address
Operation
To complete the burst operation, the consecutive read command should be
performed tWRD (= BL/ 2 + 2) after the write command.
Precharge the bank tWPD after the preceding write command. tRP after the
precharge command, issue the ACT command. tRCD after the ACT command, the
consecutive read command can be issued. See ‘A read command to the
consecutive precharge interval’ section.
To complete a burst operation, the consecutive read command should be
performed tWRD (= BL/ 2 + 2) after the write command.
Precharge the bank independently of the preceding write operation. tRP after the
precharge command, issue the ACT command. tRCD after the ACT command, the
consecutive read command can be issued.
1. Same
2. Same
3. Different
Same
Different
Any
ACTIVE
—
ACTIVE
IDLE
t0
t1
t2
t3
t4
t5
t6
CK
/CK
Command
WRIT
NOP
READ
NOP
tWRD (min)
tWTR*
BL/2 + 2 cycle
DM
out2
DQ
out0 out1
in0
in1
in2
in3
DQS
INPUT
OUTPUT
BL = 4
CL = 2
Note: tWTR is referenced from the first positive CK edge after the last desired data in pair tWTR.
WRITE to READ Command Interval
Data Sheet E0502E30 (Ver. 3.0)
32
ELPIDA [ ELPIDA MEMORY ]
