IS43R16800A-6T ISSI [Integrated Silicon Solution, Inc], IS43R16800A-6T Datasheet - Page 39

• Manufacturer Part Number: IS43R16800A-6T
• Description: 8Meg x 16 128-MBIT DDR SDRAM
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

IS43R16800A-6
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00A
04/04/06
DM Control
DM can mask input data. In 16 products, UDM and LDM can mask the upper and lower byte of input data,
respectively. By setting DM to Low, data can be written. When DM is set to High, the corresponding data is not
written, and the previous data is held. The latency between DM input and enabling/disabling mask function is 0.
DQS
DM
DQ
t1
Mask
t2
Write mask latency = 0
DM Control
t3
Mask
t4
t5
t6
ISSI
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