NT5DS16M16CS NANOAMP [NanoAmp Solutions, Inc.], NT5DS16M16CS Datasheet - Page 39
NT5DS16M16CS
Manufacturer Part Number
NT5DS16M16CS
Description
256Mb DDR Synchronous DRAM
Manufacturer
NANOAMP [NanoAmp Solutions, Inc.]
Datasheet
1.NT5DS16M16CS.pdf
(76 pages)
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NanoAmp Solutions, Inc.
DOC # 14-02-044 Rev A ECN # 01-1116
The specifications of this device are subject to change without notice. For latest documentation, see http://www.nanoamp.com
Write to Read: Minimum DQSS, Odd Number of Data (3 bit Write), Interrupting (CAS
Latency = 2; Burst Length = 8)
Command
Address
DI a-b = data in for bank a, column b.
An interrupted burst is shown, 3 data elements are written.
2 subsequent elements of data in are applied in the programmed order following DI a-b.
t
The Read command masks the last 2 data elements in the burst.
A10 is Low with the Write command (Auto Precharge is disabled).
The Read and Write commands are not necessarily to the same bank.
1 = This bit is correctly written into the memory array if DM is low.
2 = These bits are incorrectly written into the memory array if DM is low.
DQS
WTR
DM
DQ
CK
CK
is referenced from the first positive CK edge after the last desired data in pair (not the last desired data in element)
BAa, COL b
Write
T1
DI a-b
t
DQSS
NOP
T2
(min)
NOP
T3
1
NT5DS64M4CT, NT5DS32M8CT, NT5DS16M16CT
NT5DS64M4CS, NT5DS32M8CS, NT5DS16M16CS
2
NOP
T4
2
t
WTR
BAa, COL n
Read
T5
CL = 2
NOP
Don’t Care
T6
39