W9412G6JH
11.4 Write Timing (Burst Length = 4)
tCH
tCL
tCK
CLK
CLK
tIS
tIH
WRIT
CMD
tIS
tIH
tDSH
tDSS
tDSH
tDSS
ADD
Col
x4, x8 device
DQS
tWPRES
tDQSH
tDQSL
tDQSH
tWPST
tWPRE
Postamble
tDH
Preamble
tDS
tDS
tDS
tDH
tDH
Input
(Data)
DA0
DA0
DA1
DA2
DA3
tDQSS
tDSH
tDSS
tDSH
tDSS
x16 device
LDQS
tWPRES
tDQSH
tDQSL
tDQSH
tWPST
tWPRE
Postamble
tDH
Preamble
tDS
tDS
tDS
tDH
tDH
DQ0~7
DA0
DA0
DA1
DA2
DA3
tDQSS
tDSH
tDSS
tDSH
tDSS
tWPRES
tDQSL
tDQSH
tWPST
tDQSH
tWPRE
UDQS
Preamble
tDS
Postamble
tDH
tDS
tDS
tDH
tDH
DA0
DA1
DA2
DA3
DQ8~15
tDQSS
Note: x16 has two DQSs (UDQS for upper byte and LDQS for lower byte). Even if one of the 2 bytes is not used, both UDQS
and LDQS must be toggled.
Publication Release Date: Nov. 29, 2011
- 37 -
Revision A03
WINBOND [ WINBOND ]
