RFPIC12F675K-I/SS

Overview

The rfPIC12F675K-I/SS is a 20-pin SSOP microcontroller integrating an 8-bit RISC CPU with a UHF ASK/FSK transmitter. It features 1024 x 14 words of Flash program memory, 128 bytes of EEPROM, and 64 bytes of SRAM. The device operates on a 2.0V to 5.5V supply with frequencies up to 20 MHz. Key peripherals include a 10-bit 4-channel ADC, analog comparator, three timers, and interrupt capabilities. The integrated RF section supports data rates up to 40 Kbps and output power from +10 dBm to -12 dBm.

Feature Summary

• Integrated UHF ASK/FSK Transmitter for 290-350 MHz applications
• High Performance RISC CPU with 35 single-cycle instructions
• 1024 x 14 Flash Program Memory and 128 x 8 EEPROM Data Memory
• 10-bit Analog-to-Digital Converter (4 channels) and Analog Comparator

Applications

• Automotive Remote Keyless Entry (RKE) systems
• Community gate and garage door openers
• Low power telemetry and meter reading
• Wireless sensors and tire pressure sensors

Procurement Notes

Verify the specific 'K' suffix designation confirms the 290-350 MHz frequency range required for the target application. Confirm the '-I' industrial temperature rating aligns with environmental operating conditions. Ensure the SSOP package dimensions match the PCB footprint design specifications.

Selection Notes

Select this component when a combined MCU and transmitter solution is needed for short-range wireless control. The internal 4 MHz oscillator provides factory calibration accuracy of ±1%. Consider the 20-pin pinout requirements for antenna connections and RF ground references compared to standard 8-pin PIC devices.

Part Context

This part belongs to the rfPIC12F675 family, which includes variants for different frequency bands: the 'F' suffix for 380-450 MHz and the 'H' suffix for 850-930 MHz. All variants share identical architecture and peripheral sets but are tuned for distinct regulatory bands such as FCC Part 15.231 and EN 300 220.

Replacement Considerations

Direct functional replacements within the same family include the rfPIC12F675F-I/SS (380-450 MHz) and rfPIC12F675H-I/SS (850-930 MHz). Standard non-RF PIC12F675 devices lack the integrated transmitter and require external RF components.