Please consider this device

The PIC12F529T48A is not recommended for new designs.  As an alternative, we recommend the .

PIC micro® with fully integrated RF Transmitter capable of operation in 418, 433 and 868 MHz Bands

Special Microcontroller Features:

  8 MHz Precision Internal Oscillator

  In-Circuit Serial Programming™ (ICSP™)

  Power-on Reset (POR)

  Device Reset Timer (DRT)

  Watchdog Timer (WDT) with Dedicated On-Chip RC Oscillator for Reliable Operation

  Programmable Code Protection

  Multiplexed MCLR Input Pin

  Internal Weak Pull-ups on I/O Pins

  Power-Saving Sleep mode

  Wake-up from Sleep on Pin Change

  Selectable Oscillator Options:

  INTRC: 4 MHz or 8 MHz precision internal RC oscillator

  EXTRC: External low-cost RC oscillator

  XT: Standard crystal/resonator

  LP: Power-saving, low-frequency crystal

RF Transmitter:

  Fully Integrated Transmitter

  FSK Operation up to 100 kbps

  OOK Operation up to 10 kbps

  Operation in 418, 434 and 868 MHz Bands:

  8 Selectable center frequencies

  Configurable Output Power: +10 dBm, 0 dBm

Low-Power Features/CMOS Technology:

  Standby Current:

  250 nA @ 2.0V, RF sleep, typical

  Operating Current:

  170 µA @ 4 MHz, 2.0V, RF sleep, typical

  9.17 mA @ 4 MHz, 2.0V, RF on at +0 dBm, typical

  16.67 mA @ 4 MHz, 2.0V, RF on at +10 dBm, typical