Microchip PIC16F19195T-I/PT: A Comprehensive Technical Overview
The Microchip PIC16F19195T-I/PT represents a significant offering within the mid-range 8-bit PIC® microcontroller family, engineered to deliver a powerful blend of core independent peripherals (CIPs), advanced analog integration, and low-power operational capabilities. This technical overview delves into the architecture, key features, and target applications of this versatile MCU.
Housed in a 44-pin TQFP package, the device is built upon an enhanced mid-range core with a 16-level deep hardware stack and 49 instructions. Operating at a maximum frequency of 32 MHz, it achieves a performance of 8 MIPS. A standout feature is its extensive memory configuration, offering 56 KB of Flash program memory and 4 KB of RAM, providing ample space for complex application code and data handling.
The PIC16F19195 excels in its rich set of integrated peripherals designed to minimize CPU intervention and boost system efficiency. Key Core Independent Peripherals include:
Complementary Waveform Generator (CWG): Outputs complementary PWM signals with dead-band control, ideal for driving half-bridge and full-bridge circuits in power conversion and motor control.
Windowed Watchdog Timer (WWDT): Enhances system reliability by allowing the configuration of a time window for refresh, detecting both stalled and runaway code.
Hardware Limit Timer (HLT): Provides a hardware-based safety shut-off for PWM outputs, crucial for protecting power stages in fault conditions.
Its analog capabilities are particularly robust. The MCU incorporates a 12-bit Analog-to-Digital Converter (ADC) with Computation (ADC²). This innovative feature can perform accumulation, averaging, and low-pass filtering in hardware while the CPU sleeps, dramatically reducing power consumption in sensor data acquisition applications. It is complemented by two 8-bit DACs and two comparators, offering a complete analog signal chain on a single chip.
For connectivity, it features multiple serial communication modules, including EUSART (UART), SPI, and I²C, supporting connections to a vast array of sensors, memories, and other peripheral devices.
Power management is a critical strength. The device operates from 1.8V to 5.5V, making it suitable for both battery-powered and line-powered systems. It features multiple low-power modes (Sleep, Idle, Doze) and a Peripheral Module Disable (PMD) feature, which allows the clock to unused peripherals to be turned off, minimizing dynamic current consumption. Its nanoWatt XLP technology enables deep low-power sleep with Watchdog Timer and Real-Time Clock/Calendar (RTCC) functionality, making it perfect for long-life battery applications.
Target applications for the PIC16F19195T-I/PT are diverse, spanning:
Industrial Control (sensors, timers, PLCs)
Automotive (sensor interfaces, lighting control)
Consumer Electronics (appliance control, power tools)
Internet of Things (IoT) End Nodes
Motor Control and Power Conversion Systems
The Microchip PIC16F19195T-I/PT is a highly integrated and power-efficient 8-bit microcontroller. Its combination of a large memory footprint, advanced Core Independent Peripherals like the CWG and HLT, and the unique hardware-accelerated ADC² makes it an exceptionally capable solution for designers seeking to create intelligent, responsive, and energy-efficient embedded systems without stepping into a 32-bit architecture.
Keywords: Core Independent Peripherals (CIPs), nanoWatt XLP Technology, 12-bit ADC with Computation, Complementary Waveform Generator (CWG), Low-Power Operation.
