The PIC16F1939T-I/PT from MICROCHIP TECH. is PIC XLP 16F family 44-Pin TQFP, flash-based, 8-Bit CMOS microcontroller with LCD driver. The PIC16F1939T-I/PT microcontroller has 28KB (16K x 14) FLASH program memory, 256 x 8 EEPROM data memory, 1K x 8 RAM size, 36 I/O general-purpose I/O pins and 14-channel 10-bit analog-to-digital (A/D) converter. This microcontroller operates at a maximum frequency of 32MHz with wide operating voltage of 1.8 to 5.5V. Operating temperature range is from -40°C to 85°C.