W9864G6JH-6 Winbond Electronics, W9864G6JH-6 Datasheet - Page 38

• Manufacturer Part Number: W9864G6JH-6
• Description: IC SDRAM 64MB 166MHZ 54TSOPII
• Manufacturer: Winbond Electronics

Specifications of W9864G6JH-6

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 64M (4M x 16)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.3 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-TSOP II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.17 Timing Chart of Read to Write Cycle
11.18 Timing Chart of Write to Read Cycle
In the case of Burst Length = 4
(1) CAS Latency=2
(2) CAS Latency=3
(1) CAS Latency=2
(2) CAS Latency=3
( a ) Command
( b ) Command
( a ) Command
( b ) Command
( a ) Command
( a ) Command
( b ) Command
( b ) Command
DQM
DQM
DQM
DQM
DQ
DQ
DQ
DQ
DQM
DQM
DQM
DQM
DQ
In the case of Burst Length=4
DQ
DQ
DQ
0
0
Read Write
Read
Read
Read
1
Write
Note: The Output data must be masked by DQM to avoid I/O conflict
Write
Write
Write
D0
D0
D0
1
D0
Write
D0
D0
2
Read
Read
D1
D1
2
Write
Write
D1
D0
D0
D1
3
Read
Read
3
D2
D1
D1
D2
4
Q0
4
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D3
D2
D2
D3
5
Q1
Q0
Q0
5
D3
D3
6
Q2
Q1
Q1
Q0
6
7
Q3
Q1
Q2
Q2
7
Publication Release Date: Aug. 31, 2010
8
Q2
Q3
Q3
8
9
Q3
9
10
10
W9864G6JH
11
11
Revision A02