Preliminary Information
MT90810
C2o
t
CDRQ
DREQ/1
DACK0/1
WR/RD
async. to C2
t
t
WDRQ
RDRQ
t
t
RW
WW
Figure 27 - DMA Timing Detail A
1.008 ± 0.016
(25.6 ± 0.4)
0.787 ± 0.004
(20 ± 0.1)
80
51
81
50
Index
31
100
1
30
0.026 ± 0.004 0.012 ± 0.004
(0.30 ± 0.1)
(0.65 ± 0.1)
0.106 ± 0.004
(2.7 ± 0.1)
0.110
(2.8)
0.006 ± 0.002
(0.15 ± 0.05)
0 - 12°
Coplanarity: 0.006 (0.15) max.
0.059± 0.012
(1.5 ± 0.3)
Notes:
1) Not to scale
2) Dimensions in inches
3) (Dimensions in millimeters)
Figure 28 - Mechanical Data
2-177