A compact PICAXE-28X2 module which contains the popular PICAXE-28X2 (PIC18F25K22) chip, voltage regulator, download socket, and reset switch in a convenient 28-pin, 0.6" wide, format. Supplied as an assembled and ready to use module it is ideal for breadboarding work but will also find a suitable place in other projects. This 28X2 module supports up to 22 inputs/outputs with 16 analogue/touch sensor channels with an operating speed up to 16MHz using an internal oscillator and 64MHz using an on-board resonator. This chip supports 4 internal and up to 32 external program slots and is capable of acting as an i2c slave device. The 28X2 supports enhanced features such as configurable i/o pins, ring tone music and touch sensor inputs, i2c, spi and high-speed serial with background receive. Scratchpad memory plus separate Data EEPROM and Data Table are supported. See the specification tab for more X2 series information. Feature 08M2 14M2 18M2 20M2 20X2 28X2 40X2 Memory Capacity (bytes) 2048 2048 2048 2048 4096 4096 4096 RAM (bytes) 128 512 256 512 256 1280 1280 Byte Variables (bytes) 28 28 28 28 56 56 56 Input/Outputs Pins 6 12 16 18 18 22 33 ADC/Touch Pins 3 7 10 11 11 16 27 Max. Freq. (MHz) 32 32 32 32 64 64 64 Serial In/Out Yes Yes Yes Yes Yes Yes Yes Infrared In/Out Yes Yes Yes Yes Yes Yes Yes I2C Yes Yes Yes Yes Yes Yes Yes Tune (ring tones) Yes Yes Yes Yes Yes Yes Yes Parallel Tasks 4 8 4 8 1 1 1 Program Slots 1 1 1 1 1 4 4
