EDD2508AKTA-5B ELPIDA [Elpida Memory], EDD2508AKTA-5B Datasheet - Page 34

• Manufacturer Part Number: EDD2508AKTA-5B
• Description: 256M bits DDR SDRAM (32M words x 8 bits, DDR400)
• Manufacturer: ELPIDA [Elpida Memory]

Preliminary Data Sheet E0349E60 (Ver. 6.0)
Command
Command
Note: tWTR is referenced from the first positive CK edge after the last desired data in pair tWTR.
DQS
DQS
/CK
DM
/CK
DQ
DM
CK
DQ
CK
WRIT
WRIT
t0
t0
2 cycle
NOP
in0
in0
t1
t1
Data masked
NOP
in1
in1
3 cycle
[WRITE to READ delay = 2 clock cycle]
[WRITE to READ delay = 3 clock cycle]
Data masked
READ
in2
in2
t2
t2
tWTR*
in3
in3
READ
t3
t3
CL=3
34
t4
t4
CL=3
t5
t5
out0 out1 out2 out3
NOP
t6
t6
NOP
out0 out1 out2 out3
EDD2508AKTA-5
t7
t7
High-Z
High-Z
t8
t8
BL = 4
CL = 3
BL = 4
CL = 3