HY5DU56422DTP Datasheet, PDF (9/37 Pages) Hynix Semiconductor – 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)

HY5DU56422D(L)TP
HY5DU56822D(L)TP
HY5DU561622D(L)TP
WRITE MASK TRUTH TABLE
Function
Data Write
Data-In Mask
CKEn-1 CKEn /CS, /RAS, /CAS, /WE
DM
ADD A10/
R
AP
BA
Note
H
X
X
H
X
X
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. 0.1 /May 2004
9