BUY LM628N-6 https://www.utsource.net/itm/p/74760.html
Precision Motion Controller
Description: LM628N-6 is a motion control IC from National Semiconductor. It is a dual-axis motion control IC with a built-in microprocessor. Features: Dual-axis motion control Built-in microprocessor On-chip RAM On-chip ROM On-chip analog-to-digital converter On-chip digital-to-analog converter On-chip pulse-width modulation On-chip pulse-width modulation On-chip timer On-chip oscillator On-chip comparator On-chip voltage regulator Applications: Robotics Automation Industrial control Machine vision Medical equipment Automotive systems Security systems (For reference only)