Dual Stepper Motor Driver Controller Card
Joe Coffland and Mike Durller
October 2000

Parts List

Qty	Part		Description			Price	Total
2	DM74LS169	4 Bit Up/Down Counter		00.68	01.36
1	DM74LS156N	Dual 4 Bit DEMUX		00.64	00.64
1	74F541PC	Octal Tri-State Buffer		01.05	01.05
4	MCT62		Dual Opto Isolator		00.68	02.72
8	IRL540		Hi Current MOSFET		01.99	15.92
8	390R		390 Ohm Resistor		
8	33kR		33k Ohm Resistor
8	7.5R 20W	7.5 Ohm 20 Watt Resistor
4	A1928-ND	6 Pin headers			00.17	01.36