Microchip PIC16F15354-I/SO 8-Bit Microcontroller Technical Overview and Application Guide

The Microchip PIC16F15354-I/SO is a versatile 8-bit microcontroller (MCU) from Microchip’s enhanced mid-range PIC16F family. Housed in a 28-pin SOIC (Small Outline Integrated Circuit) package, this device is engineered to deliver a balance of performance, power efficiency, and peripheral integration, making it a compelling choice for a wide array of embedded control applications.

Core Architecture and Performance

At its heart lies an enhanced 8-bit PIC® core with a 49-instruction set, operating at a maximum frequency of 32 MHz. This core provides a substantial performance uplift over baseline PIC MCUs, enabling more efficient execution of control algorithms. With 14 KB of Flash program memory and 1 KB of RAM, the device offers ample space for moderately complex firmware, while 256 Bytes of Data EEPROM provide critical non-volatile storage for parameters that must be retained after a power cycle.

Advanced and Core-Independent Peripherals

A key strength of the PIC16F15354 is its rich set of peripherals, many of which are Core-Independent Peripherals (CIPs). These CIPs can operate autonomously from the CPU, offloading timing-critical and complex tasks to reduce software overhead and power consumption.

Complementary Waveform Generator (CWG): This CIP is indispensable for controlling brushless DC (BLDC) motors and switched-mode power supplies (SMPS). It can generate complementary PWM signals with dead-band control, preventing shoot-through in half-bridge and full-bridge driver circuits.

Numerically Controlled Oscillator (NCO): This peripheral provides highly precise frequency generation with fine resolution, useful for creating custom clock sources or DAC-driven waveforms without CPU intervention.

Peripheral Pin Select (PPS): This digital crossbar allows for remappable I/O pin functions, offering unparalleled flexibility in board layout. Designers can assign UART, SPI, I2C, and other digital functions to virtually any pin, simplifying PCB routing and mitigating design constraints.

Additional integrated peripherals include:

Multiple Communication Interfaces: EUSART (for LIN), SPI, and I2C modules facilitate robust communication with sensors, displays, and other ICs.

Timers and CCP: Multiple 8-bit and 16-bit timers, along with Capture/Compare/PWM (CCP) modules, provide essential timing and control capabilities.

Analog Capabilities: A 10-bit Analog-to-Digital Converter (ADC) with up to 21 channels and a 5-bit Digital-to-Analog Converter (DAC) are integrated for sensor interfacing and analog signal generation.

Low-Power Features and Robust Operation

The MCU is designed for power-sensitive applications. It features multiple low-power modes, including Idle and Sleep, allowing the system to minimize current draw when inactive. It operates over a wide voltage range (1.8V to 5.5V) and across an industrial temperature range (-40°C to +85°C), ensuring reliability in harsh environments.

Application Guide

The combination of its peripherals makes the PIC16F15354-I/SO ideal for a diverse set of applications:

Motor Control: The CWG makes it perfect for consumer appliances (fans, pumps) and automotive subsystems (BLDC motor control).

IoT and Consumer Electronics: Low-power modes and communication interfaces enable smart sensors, remote controls, and battery-powered devices.

Industrial Control: As a system supervisor, it can manage power sequencing, fan speed control, and human-machine interfaces (HMIs) in larger systems.

Automotive and Lighting: Its robust design supports automotive body electronics and advanced LED lighting control.

ICGOOODFIND

The Microchip PIC16F15354-I/SO stands out as a highly integrated and flexible 8-bit microcontroller solution. Its powerful suite of Core-Independent Peripherals, particularly the Complementary Waveform Generator (CWG) and Peripheral Pin Select (PPS), significantly reduces design complexity and CPU load. This MCU is an excellent choice for developers seeking to build efficient, reliable, and feature-rich embedded systems in the automotive, industrial, and consumer markets.

Keywords:

1. Core-Independent Peripherals (CIPs)

2. Complementary Waveform Generator (CWG)

3. Peripheral Pin Select (PPS)

4. 8-Bit Microcontroller

5. Low-Power Operation