W9825G6DH75I Winbond, W9825G6DH75I Datasheet - Page 38
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W9825G6DH75I
Manufacturer Part Number
W9825G6DH75I
Description
Manufacturer
Winbond
Type
SDRAMr
Datasheet
1.W9825G6DH75I.pdf
(44 pages)
Specifications of W9825G6DH75I
Organization
16Mx16
Density
256Mb
Address Bus
14b
Access Time (max)
6/5.4ns
Maximum Clock Rate
133MHz
Operating Supply Voltage (typ)
3.3V
Package Type
TSOP-II
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
130mA
Pin Count
54
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Supplier Unconfirmed
11.17
11.18 Timing Chart of Write to Read Cycle
Timing Chart of Read to Write Cycle
(1) CAS Latency=2
(2) CAS Latency=3
( a ) Command
( b ) Command
( a ) Command
( b ) Command
DQM
DQM
DQM
DQM
DQ
DQ
DQ
DQ
In the case of Burst Length=4
In the case of Burst Length = 4
(2) CAS Latency=3
(1) CAS Latency=2
0
( a ) Command
( b ) Command
( a ) Command
( b ) Command
Note: The Output data must be masked by DQM to avoid I/O conflict.
Write
DQM
DQM
DQM
DQM
Write
Write
Write
DQ
DQ
DQ
DQ
D0
D0
D0
D0
1
0
Read
Read
D1
D1
2
Read
Read
Read
Read
1
Read
Read
3
Write
Write
D0
2
D0
Write
Write
Q0
4
D1
D0
D0
3
D1
- 38 -
D2
D1
4
D1
D2
Q1
Q0
Q0
5
D3
D2
D2
5
D3
Q2
Q1
Q1
Q0
6
D3
D3
6
Q3
Q1
Q2
Q2
Publication Release Date: Apr. 24, 2008
7
7
Q2
Q3
Q3
8
8
Q3
9
9
W9825G6DH
10
10
11
11
Revision A12