PIC16F18855-E/SO

Microcontrollers Overview

The PIC16F18855-E/SO is an 8-bit microcontroller from the PIC16(L)F1885x family, housed in a 28-pin SOIC package. It features up to 14 KB of Flash program memory, 1 KB of data SRAM, and 256 bytes of EEPROM. The device operates at a maximum clock frequency of 32 MHz with an operating voltage range of 2.3 V to 5.5 V. It includes a 10-bit ADC with computation (ADC2), two comparators, a 5-bit DAC, and multiple communication interfaces including EUSART, RS-232, RS-485, LIN, two SPI, and two I2C modules.

Microcontrollers Feature Summary

• Integrates Core Independent Peripherals such as Configurable Logic Cells (CLC), Complementary Waveform Generators (CWG), and a Numerically Controlled Oscillator (NCO) for hardware-based signal processing.
• Features Analog-to-Digital Converter with Computation (ADC2) that automates mathematical functions like averaging, filtering, and threshold comparison on input signals.
• Includes safety-oriented peripherals such as Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and Cyclical Redundancy Check (CRC/SCAN) for memory integrity verification.

Microcontrollers Applications

• General-purpose embedded control systems requiring low-power operation
• Industrial applications utilizing LIN or RS-485 communication protocols
• Motor control designs leveraging CWG and CCP modules
• Signal conditioning circuits using ADC2 automated post-processing

Microcontrollers Procurement Notes

Verify the specific suffix 'SO' corresponds to the 28-pin Small Outline Integrated Circuit (SOIC) package when sourcing components. Confirm the '-E' temperature grade indicates extended industrial specifications ranging from -40°C to +125°C. Ensure compatibility with standard surface-mount assembly processes for SOIC packages. Cross-reference the manufacturer part number directly with official Microchip documentation to avoid counterfeit or obsolete stock.

Microcontrollers Selection Notes

Select this component when designing 8-bit embedded systems requiring high peripheral density within a compact 28-pin footprint. It is suitable for applications needing robust analog capabilities combined with digital signal processing features like CLC and NCO. Consider this MCU for designs demanding flexible pin mapping via PPS and extensive communication options including dual MSSP modules and EUSART support.

Microcontrollers Part Context

This device belongs to the PIC16(L)F1885x series, which emphasizes extreme low-power (XLP) technology alongside full-featured peripheral sets. The family supports both industrial and extended temperature ranges across various package types including SPDIP, SOIC, SSOP, and QFN variants. It utilizes a C compiler-optimized RISC architecture with only 49 instructions for efficient code execution.

Microcontrollers FAQ

Does the PIC16F18855 support RS-485 and LIN communication protocols?

Yes, the EUSART module within the PIC16F18855 is explicitly compatible with RS-232, RS-485, and LIN protocols.

What is the function of the ADC2 module?

The ADC2 module provides 10-bit resolution and automates post-processing tasks such as averaging, filter calculations, oversampling, and threshold comparison to reduce application complexity.