W9825G6DH-6I Winbond Electronics, W9825G6DH-6I Datasheet - Page 36

• 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

11.15
(1) CAS Latency=2
(2) CAS Latency=3
( a ) burst length = 1
( b ) burst length = 2
( c ) burst length = 4
( d ) burst length = 8
( a ) burst length = 1
( b ) burst length = 2
( c ) burst length = 4
( d ) burst length = 8
Auto-precharge Timing (Read Cycle)
Command
Command
Command
Command
Command
Command
Command
Command
DQ
Note:
DQ
DQ
DQ
DQ
DQ
DQ
DQ
Read
Read
Read
Read
Read
Read
Read
Read
When the Auto precharge command is asserted, the period from Bank Activate command to
0
Read
Act
AP
AP
AP
1
the start of internal precgarging must be at least t
Q0
AP
Q0
Q0
Q0
AP
t
represents the Bank Activate command.
2
RP
represents the start of internal precharging.
represents the Read with Auto precharge command.
t
RP
Act
Q1
Q1
Q1
Q0
Q0
Q0
Q0
t
3
RP
t
RP
Act
Act
AP
Q2
Q2
Q1
AP
Q1
Q1
4
- 36 -
Act
Q3
Q3
Q2
Q2
t
5
RP
t
RP
Act
Q4
Q3
Q3
6
Publication Release Date: Apr. 24, 2008
RAS
Act
Q5
Q4
7
(min).
AP
Q6
AP
Q5
8
W9825G6DH
Q7
Q6
t
9
RP
t
RP
Act
Q7
10
Revision A12
Act
11