PIC 18F45K50 Micro Mini Board

The P-Star 45K50 Mini SV is a small programmable module featuring Microchip’s PIC18F45K50 microcontroller. It packs a Micro-USB interface and 30 digital input/output pins onto a board measuring 2″ × 0.7″ and ships preloaded with a USB bootloader, so no external programmer is required.
The Pololu P-Star 45K50 Mini SV is a general-purpose programmable module based on Microchip’s PIC18F45K50 microcontroller, which has 32 KB of flash program memory, 2 KB of RAM, and built-in USB functionality. On-board features of the P-Star (abbreviated P*) include a 16 MHz crystal, a USB Micro-B connector, and three user-controllable indicator LEDs. A switching step-down voltage regulator and power selection circuit allow the board to be powered from either USB or an external 5 V to 36 V source, while a current limit on the USB VBUS supply and reverse protection on VIN help protect it from accidental damage. The board ships with a USB bootloader that makes it easy to program the PIC microcontroller without using an external programmer.

Quick Spec

• Dimensions: 2″ × 0.7″ (2.05″ × 0.7″ including USB Micro-B connector)
• Programmable Microchip PIC18F45K50 microcontroller
• 32 KB flash (8 KB used by bootloader, leaving 24 KB available for user program by default)
• 2 KB SRAM
• 256 bytes of EEPROM
• Native full-speed USB (12 Mbps)
• Internally clocked at 48 MHz, resulting in execution speeds up to 12 million instructions per second (MIPS)
• Precision 16 MHz crystal
• 30 I/O lines in a small package
• 28 user I/O pins on the two long sides of the board
• 2 additional I/O pins available in other locations
• 25 pins can be configured as analog inputs
• 2 PWM output signals (one of which can be sent to four different pins)
• 5-bit digital-to-analog converter (DAC) output
• Three user-controllable LEDs
• Reset button
• USB Micro-B connector
• Can be powered from USB or external source regulated to 5 V by onboard regulator
• Operating voltage: 5 V to 36 V
• 5 V logic voltage
• Auxiliary 3.3 V linear regulator
• Reverse-voltage protection on external power input
• Ships with a proprietary USB bootloader developed by Pololu for the P-Star
• Bootloader is usable from Windows, Linux, and Mac OS X with open source software
• No external programmer required
• Compatible with standard Microchip compilers, development tools, and programmers

Pinout

Resources

• Product Page
• User Guide
• Schematic
• Mechanical Diagram
• PIC18F45K50 Documentation
• USB Bootloader Utility (p-load) source code

Shipping List

• 1 X PIC 18F45K50 Micro Mini Board
• 2 X 1×18-pin breakaway 0.1″ Male headers
• 1 X 1×7-pin breakaway 0.1″ Male header