Specifications

B-6 Issue 5, August 1994 Appendix B
DMA Extended Bus Interface
Electrical characteristics
Table 6: Electrical characteristics
Parameter Symbol Min Typ Max Units
All signals
Low-level input
voltage
VIL 0.8 V
Vcc=4.75v
High-level input
voltage
VIH 2.0 V
Low-level output
voltage
VOL 0.15 0.26 V
I0L = -4.0mA
High-level output
voltage
VOH 3.5 V
IOH=Max Vcc=4.75
High-level output
current
IOH -400 uA
V0 = 3.0v Vcc=4.75v
Power available per slot
Output voltage Vcc 4.75 5.0 5.25 V
Output current Icc 1.0 A
Output voltage V(+12) 11.4 12.0 12.6
V
Output current Icc 250 mA
Output voltage V(-5) -4.75 -5.0 -5.25 V
Output current Icc -10 mA
Figure 4: Recommended buffer layout
1
32
A B C
BD
0:7
BD
8:15
BD
24:31
LA
0:7
LA
8:15
LA
16:23
Clock
BD
16:23
ctrl
&