P-Star 45K50 Mini SV Programmable Module

PololuSKU: RB-Pol-594
Manufacturer #: 3156

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  • Programmable Microchip PIC18F45K50 microcontroller
  • Operating voltage: 5 - 36 V
  • 32 KB flash, 2 KB SRAM
  • 30 digital input/output pins
  • Preloaded with a USB bootloader

The P-Star 45K50 Mini SV Programmable Module 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. It has a 32 KB of flash program memory, 2 KB of RAM, and built-in USB functionality. On-board features of the P-Star include a 16 MHz crystal, a USB Micro-B connector, and three user-controllable indicator LEDs.

P-Star 45K50 Mini SV Programmable Module

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.

  • 0.7″ × 2.05″ × 0.17″
  • Weight: 3.5 g2
  • Processor: PIC18F45K50
  • RAM size: 2 Kbytes
  • Program memory size: 32 Kbytes
  • Motor channels: 0
  • User I/O lines:   304
  • Minimum operating voltage: 5 V
  • Maximum operating voltage: 36 V
  • Logic voltage: 5 V
  • Reverse voltage protection
Other features
  • 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
  • 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

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