# SCCS id xyz
# Parts list for Dual Unipolar Stepper Motor Driver with Limit Sensing
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C1: FilterCapacitor - 10pF Capacitor
C2: FilterCapacitor - 10pF Capacitor
N1: BusInput - Stepper Bus Input
N2: BusOutput - Stepper Bus Output 
N3: BusOutput - Stepper Bus Output 
U1: 74LS139 - Dual 2-to-4 line Demultiplexer
U2: 74LS139 - Dual 2-to-4 line Demultiplexer
U3: 74LS157 - Dual 2-to-1 Multiplexer