399-818, Microchip, DSPIC33FJ256GP506-I/PT Microchip, 16bit Digital Signal Processor 40MHz 256 kB Flash 64-Pin TQFP, Brand Microchip, Maximum Frequency 40MHz, Data Bus Width 16bit DSPIC33FJ256GP506-I/PT Microchip, 16bit Digital Signal Processor 40MHz 256 kB Flash 64-Pin TQFP