W9825G6DH-6I Winbond Electronics, W9825G6DH-6I Datasheet - Page 39

• Manufacturer Part Number: W9825G6DH-6I
• Manufacturer: Winbond Electronics
• Type: SDRAMr

Specifications of W9825G6DH-6I

• Organization: 16Mx16
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 6/5ns
• Maximum Clock Rate: 166MHz
• 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: 150mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Compliant

11.19
11.20 Timing Chart of Burst Stop Cycle (Precharge Command)
Timing Chart of Burst Stop Cycle (Burst Stop Command)
(1) Read cycle
(2) Write cycle
(2) Write cycle
(1) Read cycle
(a) CAS latency =2
(b) CAS latency =3
(a) CAS latency =2
(b) CAS latency =3
( a ) CAS latency =2
( b )CAS latency = 3
Command
Command
Command
Command
Command
Command
Command
DQ
DQ
DQ
DQ
DQ
DQ
DQM
DQM
DQ
Read
Read
Write
Q0
0
Write
Read
Read
Write
Q0
Q0
0
Q1
1
Note:
Q1
Q1
1
Q2
Q0
2
Q0
BST
Q2
Q2
2
Q0
Q3
Q1
3
Q1
Q0
3
Q3
Q3
represents the Burst stop command
Q1
Q4
Q2
4
- 39 -
Q2
Q1
4
Q4
Q4
BST
BST
BST
Q2
Q3
5
PRCG
PRCG
Q3
Q2
tWR
tWR
5
Q3
Q4
6
PRCG
PRCG
Q4
Q3
6
Q4
7
Publication Release Date:Apr. 24, 2008
7
Q4
8
8
9
9
10
W9825G6DH
10
11
11
Revision A12