Microchip PIC16F15355T-I/SS 8-Bit Microcontroller Overview and Application Guide
The Microchip PIC16LF15355T-I/SS is a versatile 8-bit microcontroller from Microchip’s enhanced mid-range PIC16F family. Built on a high-performance RISC architecture, this device is engineered for a broad range of embedded control applications, offering an optimal blend of processing capability, power efficiency, and peripheral integration.
Core Architecture and Performance
At its heart, the microcontroller features an enhanced PIC16 core with a 16-level deep hardware stack and 49 instructions. Operating at a maximum frequency of 32 MHz, it delivers a solid 8 MIPS of performance. A key attribute of the "LF" variant is its ultra-low-power (XLP) technology, enabling it to function with exceptional efficiency in battery-powered and energy-harvesting applications. It supports a wide operating voltage range from 1.8V to 3.6V, making it suitable for both 3.3V and lower-voltage systems.
Memory and Integration
The PIC16LF15355T-I/SS is equipped with 14 KB of Flash program memory and 1 KB of RAM, providing ample space for application code and data handling. A standout feature is its 256 Bytes of High-Endurance Flash (HEF) memory, capable of supporting up to 100,000 erase/write cycles—ideal for storing data that is updated frequently, such as sensor calibration values or event counters.
Advanced Peripherals for Enhanced Connectivity
This MCU is distinguished by its rich set of intelligent peripherals that reduce CPU overhead and enable more complex system designs:
Complementary Waveform Generator (CWG): This peripheral is critical for advanced motor control and power conversion applications, generating complementary PWM signals with dead-band control.
Hardware Limit Timer (HLT): Enhances safety in motor control by providing hardware-based fault protection, allowing for immediate shutdown without software intervention.
Multiple Communication Interfaces: It includes EUSART (UART), I2C, and SPI modules, facilitating seamless communication with a vast ecosystem of sensors, displays, and other ICs.

Analog Capabilities: A 10-bit ADC with up to 35 channels, along with comparators and a 5-bit DAC, provides robust analog signal acquisition and control capabilities.
Application Areas
The combination of low power, robust peripherals, and compact form factor (TSSOP package) makes the PIC16F15355T-I/SS an excellent choice for a diverse set of applications. Key areas include:
Internet of Things (IoT) Sensor Nodes
Battery-Powered Consumer Electronics
Motor Control Systems (e.g., fans, pumps, drones)
Automotive and Industrial Control Systems
Personal Medical Devices
Development Support
Designers can accelerate development using Microchip’s comprehensive MPLAB X IDE and the MPLAB Code Configurator (MCC), a graphical tool that simplifies peripheral initialization and code generation. Low-cost hardware tools like the PICkit™ 4 programmer/debugger are also available.
ICGOODFIND: The Microchip PIC16LF15355T-I/SS stands out as a highly integrated, power-efficient solution for modern embedded designs. Its unique blend of Core Independent Peripherals (CIPs) like the CWG and HLT, coupled with its ultra-low-power XLP technology, empowers engineers to create smarter, more reliable, and energy-conscious products with reduced software complexity.
Keywords: 8-bit Microcontroller, Ultra-Low-Power (XLP), Core Independent Peripherals (CIPs), Complementary Waveform Generator (CWG), Embedded Control.
