is42g32256 ETC-unknow, is42g32256 Datasheet - Page 51

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

IS42G32256
Integrated Silicon Solution, Inc.
ADVANCE INFORMATION SR037-0C
09/10/98
Notes:
1.
2. Minimum one clock cycle should be met before
3. Please refer to Mode Register Set table.
A0-A8
DQM
Both bank precharge should be completed
Mode Register Set cycle and auto refresh cycle.
CS
low at the same clock with address key will set
internal mode register.
new
RAS
CAS
CKE
Figure 36. Mode Register Set Cycle
CLK
DSF
WE
DQ
CS
,
raS
RAS
HIGH
0
,
CAS
activation.
1
, and
MRS
KEY
NOTE 2
NOTE 1
NOTE 3
2
WE
COMMAND
NEW
RA
activation and DSF of
3
HI-Z
4
: DON’T CARE
5
6
A0-A8
DQM
CKE
RAS
CAS
DSF
CLK
WE
DQ
CS
HIGH
0
REFRESH
AUTO
1
Figure 37. Auto Refresh Cycle
2
3
HI-Z
4
5
t
RC
6
7
8
: DON’T CARE
9
COMMAND
NEW
ISSI
10
51
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