km4132g271a ETC-unknow, km4132g271a Datasheet - Page 20
km4132g271a
Manufacturer Part Number
km4132g271a
Description
128k 32bit Banks Synchronous Graphic
Manufacturer
ETC-unknow
Datasheet
1.KM4132G271A.pdf
(48 pages)
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KM4132G271A
4. CAS Interrupt (II) : Read Interrupted by Write & DQM
*Note :
(1) CL=2, BL=4
(2) CL=3, BL=4
1. To prevent bus contention, there should be at least one gap between data in and data out.
2. To prevent bus contention, DQM should be issued which makes at least one gap between data in and data out.
i) CMD
ii) CMD
iii) CMD
iv) CMD
i) CMD
ii) CMD
iii) CMD
iv) CMD
v) CMD
DQM
DQM
DQM
DQM
DQM
DQM
DQM
DQM
DQM
CLK
CLK
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
RD
RD
RD
RD
RD
RD
RD
RD
RD
WR
WR
D
Hi-Z
D
0
0
WR
WR
Hi-Z
D
Q
D
D
D
1
0
0
1
0
Note 1
WR
Hi-Z
WR
Hi-Z
Q
D
D
D
D
D
D
0
0
0
1
2
2
1
Note 2
WR
WR
Hi-Z
D
D
D
D
D
D
D
D
0
2
2
3
1
3
1
0
WR
D
D
D
D
D
D
D
0
1
3
2
3
2
1
D
D
D
D
D
2
3
3
1
2
D
D
D
3
2
3
D
3
Rev.0 (August 1997)
CMOS SGRAM