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Description
- 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.
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
- 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