Microchip PIC16F1937-I/PT 8-Bit Microcontroller Technical Overview and Application Guide

The Microchip PIC16F1937-I/PT stands as a robust and versatile 8-bit microcontroller within the enhanced mid-range PIC16F family. Housed in a 44-pin TQFP package, this device is engineered for applications demanding high integration, low power consumption, and dependable performance across industrial, automotive, and consumer domains.

Core Architecture and Performance

At its heart lies an enhanced 8-bit RISC CPU core capable of operating at up to 32 MHz, achieving a performance of 8 MIPS. A significant feature is the 32-level deep hardware stack, which enhances the reliability of interrupt handling and subroutine calls. The core is augmented with a suite of peripherals designed to minimize CPU intervention, thereby optimizing power efficiency and processing throughput for complex tasks.

Key Memory and Peripheral Features

The device boasts a substantial memory configuration, including 28 KB of self-read/write Flash program memory and 1,536 bytes of RAM. This ample space supports sophisticated firmware and data processing needs. Key integrated peripherals include:

Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART): Facilitates robust serial communication (UART, LIN).

Master Synchronous Serial Port (MSSP): Supports both I²C and SPI communication protocols, essential for interfacing with sensors, memories, and other ICs.

Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) modules: Provide precise timing and control for driving motors, LEDs, and generating waveforms.

10-Bit Analog-to-Digital Converter (ADC): With up to 14 channels, it enables precise acquisition of analog sensor data.

Comparator and Voltage Reference Module: Offers analog signal comparison capabilities without external components.

nanoWatt XLP Technology for Ultra-Low Power

A cornerstone of its design is nanoWatt XLP technology, which enables exceptionally low power consumption. This is critical for battery-powered and energy-harvesting applications. The microcontroller features multiple power-saving modes (Sleep, Idle) with rapid wake-up times, allowing designers to create products that can operate for years on a single battery.

Application Guide

The PIC16F1937-I/PT's rich feature set makes it suitable for a wide array of applications:

Industrial Control: Motor control systems, sensor interfaces, and power management systems leveraging its robust communication peripherals and PWM modules.

Automotive: Body control modules, interior lighting systems, and other subsystems requiring reliable performance in harsh environments.

Consumer Electronics: Advanced remote controls, touch sensing interfaces (using its mTouch capability), and appliance control.

Internet of Things (IoT) Endpoints: As a smart sensor hub or a low-power controller in connected devices, collecting data via its ADC and communicating via serial interfaces.

ICGOODFIND Summary

ICGOODFIND: The Microchip PIC16F1937-I/PT is a highly integrated, feature-rich 8-bit microcontroller that excels in low-power applications thanks to its nanoWatt XLP technology. Its blend of ample memory, advanced communication interfaces (including I²C and SPI), and analog capabilities makes it an exceptionally versatile choice for designers seeking a balance of performance, power efficiency, and cost.

Keywords: PIC16F1937, 8-bit Microcontroller, nanoWatt XLP, I²C/SPI, Low-Power Applications