HY5DU12422AT Datasheet, PDF (10/33 Pages) Hynix Semiconductor – 512Mb DDR SDRAM

HY5DU12422A(L)T
HY5DU12822A(L)T
HY5DU121622A(L)T
WRITE MASK TRUTH TABLE
Function
Data Write
Data-In Mask
CKEn-1 CKEn
H
X
H
X
/CS, /RAS,
/CAS, /WE
X
X
DM
ADDR
A10/
AP
BA Note
L
X
1
H
X
1
Note :
1. Write Mask command masks burst write data with reference to LDQS/UDQS(Data Strobes) and it is not related
with read data. In case of x16 data I/O, LDM and UDM control lower byte(DQ0~7) and Upper byte(DQ8~15)
respectively.
Rev. 0.0/Feb. 2003
10