8-bit flash microcontroller, PIC10F2xx family, 2V to 5.5V supply voltage, 0.75KB flash memory, 24Bytes SRAM data memory, 4 I/O pins, 1 timers, 4MHz clock speed, SOT-23 case, these are low-cost, high-performance, 8-bit, fully static flash-based CMOS microcontrollers, they employ a RISC architecture with only 33 single-word/single-cycle instructions, all instructions are single cycle except for program branches, which take two cycles, 12-bit wide instructions, 2-Level deep hardware stack, direct, indirect and relative addressing modes for data and instructions, 8-bit wide data path, 8 special function hardware registers, applications ranging from personal care appliances and security systems to low-power remote transmitters / receivers, supplied in tube.