is42g32256 ETC-unknow, is42g32256 Datasheet - Page 38

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

IS42G32256
38
A0-A8
DQM
CKE
RAS
CAS
DSF
CLK
NOTE 4
A10
WE
DQ
CS
A9
Notes:
1. Column Mask (DQi = L: Mask, DQi = H: Non-mask).
2. t
3. At Block Write, second cycle should be in NOP.
4. At Block Write, CA0-2 are ignored.
ROW ACTIVE WITH
Other Bank can be active or precharge.
WRITE-PER-BIT
BWC
0
HIGH
(A-BANK)
ENABLE
: Block Write Cycle time.
RAa
Ra
1
2
3
t
CLD
MASKED
(A-BANK)
BLOCK
WRITE
Mask
Pixel
CAa
NOTE 1
4
Figure 22. Block Write Cycle (with Auto Precharge)
PRECHARGE
5
NOTE 2
NOTE 3
WITH AUTO
(A-BANK)
MASKED
BLOCK
WRITE
Mask
Pixel
CAb
6
7
ROW ACTIVE
8
(B-BANK)
RBa
RBa
9
10
11
(B-BANK)
BLOCK
WRITE
Mask
CBa
Pixel
12
13
PRECHARGE
WITH AUTO
(B-BANK)
BLOCK
WRITE
Mask
Pixel
CBb
14
Integrated Silicon Solution, Inc.
15
ADVANCE INFORMATION SR037-0C
16
17
18
: DON’T CARE
19
ISSI
09/10/98
®