PIC12F509-E/MS

Microcontrollers Overview

The PIC12F509-E/MS is an 8-bit Flash microcontroller from the PIC12 family, manufactured by Microchip Technology. It features a high-performance RISC CPU with 33 single-cycle instructions and operates at a maximum clock frequency of 4 MHz. The device includes 1024 words (1.5 kB) of Flash program memory and 41 bytes of data RAM. It provides six I/O pins within an MSOP-8 surface-mount package. Operating voltage ranges from 2.0 V to 5.5 V, with an industrial temperature range of -40 °C to +85 °C.

Microcontrollers Feature Summary

• Features a precision 4 MHz internal oscillator factory calibrated to ±1% for reliable timing without external components.
• Supports In-Circuit Serial Programming (ICSP) and In-Circuit Debugging (ICD) for efficient development and production.
• Includes power-saving Sleep mode with wake-up capability via pin change interrupts.

Microcontrollers Applications

• Personal care appliances
• Security systems
• Low-power remote transmitters and receivers

Microcontrollers Procurement Notes

Verify the specific suffix 'E' indicates Extended temperature range (-40°C to +125°C) if required, though datasheet lists Industrial (-40°C to +85°C) as standard for this series; confirm package type MSOP-8 matches design constraints. Ensure code protection settings align with project security requirements. Check for availability of QTP or SQTP services if serialized production is needed.

Microcontrollers Selection Notes

Select this model for applications requiring low pin count and cost-effective Flash programmability. Compare against PIC12F508 if only 512 words of program memory are sufficient. Consider PIC16F505 if higher speed (20 MHz) or more I/O pins are necessary. Verify that the 4 MHz internal oscillator meets timing accuracy needs.

Microcontrollers Part Context

This component belongs to the PIC12F508/509/16F505 family of 8-bit Flash microcontrollers. It shares architectural similarities with the PIC12F508 but offers double the program memory capacity. The device utilizes Microchip's Low Pin Count patent technology, integrating essential peripherals into an 8-pin package.

Microcontrollers Replacement Considerations

PIC12F508-I/MS offers identical functionality with reduced program memory (512 words). PIC12F509-I/P provides the same specifications in a PDIP-8 through-hole package. Cross-referencing with PIC16F505 variants may be necessary if higher performance or additional I/O is required.