The MiniPro is designed around a Microchip PIC18F87J50 micro-controller.
- It uses eight 74HC373 latches and one 74HC164 shift register
- Pin drivers are realized with discrete components. Thus we have 16VPP voltage switches, 24VDD voltage switches and 25GND switches
- DC to DC converters which generate the VPP programming voltage and VDD supply voltage is realized with two MC34063 circuits.
More information (that needs to be transferred here) available in TL866_design.pdf by Radioman.
See also Design/Schematic