W9812G6GH-6 WINBOND [Winbond], W9812G6GH-6 Datasheet - Page 35

• Manufacturer Part Number: W9812G6GH-6
• Description: 2M X 4 BANKS X 16 BITS SDRAM
• Manufacturer: WINBOND [Winbond]

11.15
(2) CAS Latency=3
(1) CAS Latency=2
( b ) burst length = 2
( d ) burst length = 8
( b ) burst length = 2
( d ) burst length = 8
( a ) burst length = 1
( c ) burst length = 4
( a ) burst length = 1
( c ) burst length = 4
Auto-precharge Timing (Read Cycle)
Command
Command
Command
Command
Command
Command
Command
Command
DQ
DQ
DQ
DQ
DQ
Note )
DQ
DQ
DQ
Read
Read
Read
Read
Read
Read
Read
Read
0
When the Auto precharge command is asserted, the period from Bank Activate command to
the start of internal precgarging must be at least t
Read
Act
AP
AP
AP
1
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
RP
3
- 35
t
RP
Act
Act
AP
Q2
Q2
Q1
AP
Q1
Q1
4
Act
Q3
Q3
Q2
Q2
t
5
RP
t
RP
Act
Q4
Q3
Q3
RAS
6
(min).
Act
Q5
Q4
Publication Release Date:Aug. 13, 2007
7
AP
Q6
AP
Q5
8
Q7
Q6
W9812G6GH
t
9
RP
t
RP
Act
Q7
10
-Revision A06
Act
11