is42g32256 ETC-unknow, is42g32256 Datasheet - Page 18

• Manufacturer Part Number: is42g32256
• Description: 256k 16-mbit Synchronous Graphics
• Manufacturer: ETC-unknow

IS42G32256
18
LATENCY = 2)
LATENCY = 3)
LATENCY = 2)
LATENCY = 3)
Note:
1. The row active command of the precharge bank can be issued after t
DQ (CLOCK
DQ (CLOCK
COMMAND
COMMAND
DQ (CLOCK
DQ (CLOCK
COMMAND
COMMAND
The new read/write command of other activated bank can be issued from this point.
At burst read/write with auto precharge,
DQM
CLK
CLK
DQ
CLK
CLK
DQ
1. WRITE INTERRUPTED BY PRECHARGE
3. READ INTERRUPTED BY PRECHARGE
(BURST LENGTH = 4)
(BURST LENGTH = 4)
1. NORMAL WRITE (BURST LENGTH = 4)
3. READ (BURST LENGTH = 4)
WR
RD
D0
WR
D0
RD
D1
D1
Figure 11. Burst Stop and Precharge Interrupted
PRE
Q0
D2
t
RDL
Q0
D2
(NOTE 1)
CAS
PRE
Q0
D3
Q1
AUTO PRECHARGE STARTS
AUTO PRECHARGE STARTS
Figure 10. Auto Precharge
NOTE 3
interrupt of the same bank is illegal.
D3
Q1
1
Q0
Q1
2
Q2
Q1
(NOTE 1)
(NOTE 1)
LATENCY = 2)
LATENCY = 3)
Q3
DQ (CLOCK
DQ (CLOCK
Q2
COMMAND
COMMAND
RP
CLK
CLK
DQ
Q3
2. BLOCK WRITE
from this point.
4. READ BURST STOP (FULL PAGE ONLY)
2. WRITE BURST STOP (FULL PAGE ONLY)
PIXEL
BW
WR
RD
D0
Integrated Silicon Solution, Inc.
t
BPL
D1
ADVANCE INFORMATION SR037-0C
STOP
Q0
D2
AUTO PRECHARGE STARTS
t
BDL
STOP
(NOTE 1)
Q0
Q1
NOTE 3
t
t
BAL
RP
1
Q1
ISSI
09/10/98
2
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