Microchip Technology PIC16F882-I/SO

Product Summary Microchip PIC16F882-I/SO Microcontroller

The Microchip Technology PIC16F882-I/SO is an 8-bit CMOS flash-based microcontroller designed for embedded systems requiring a balance of performance, power efficiency, and peripheral integration. Operating at speeds up to 20 MHz and featuring a robust instruction set, the device offers a versatile solution for control-oriented applications across industrial, automotive, and consumer domains. Housed in a 28-SOIC package, the PIC16F882-I/SO delivers up to 24 programmable I/O lines, making it suitable for interface-rich designs.

Core Architectural Characteristics of the PIC16F882-I/SO

At the core of the PIC16F882-I/SO is a high-performance RISC CPU with only 35 instructions to learn, streamlining software development and reducing time-to-market for engineers. Most instructions execute in a single cycle, apart from branches, and the device supports a maximum clock input of 20 MHz, resulting in a minimum instruction cycle time of 200 ns.

The microcontroller incorporates several microcontroller-specific features for enhanced control and monitoring:

An 8-level deep hardware stack, facilitating efficient interrupt handling.

Multiple addressing modes: direct, indirect, and relative, offering flexibility in memory management.

Factory calibrated internal oscillator with ±1% accuracy and software-selectable frequency ranges from 8 MHz down to 31 kHz. This oscillator also supports software tuning and two-speed start-up modes, as well as crystal fail detection, aiding reliability in mission-critical applications.

A fixed voltage reference module at 0.6V, and a programmable on-chip voltage reference for analog peripherals.

Peripheral Interfaces and Connectivity in the PIC16F882-I/SO

For connected and responsive designs, the PIC16F882-I/SO integrates a range of peripherals:

Analog comparator module featuring two comparators, supporting programmable on-chip voltage references.

10-bit analog-to-digital converter with up to 11 channels, allowing precise sensor interfacing.

Three principal timers: Timer0 (8-bit), Enhanced Timer1 (16-bit), and Timer2 (8-bit with period register), each with advanced prescaler/postscaler features useful for timing and event-driven designs.

Capture, Compare, and PWM (CCP) modules capable of 12.5 ns capture resolution and 10-bit PWM output at up to 20 kHz. Enhanced CCP options support programmable dead time and output steering.

Communication interfaces include USART (supporting RS-232, RS-485, and LIN 2.0, with auto-baud detect and auto-wake-up), I2C, and SPI, covering both master and slave operation modes. The integrated MSSP module delivers I2C address masking and operates in all SPI modes.

Interrupt-on-change functionality and ultra-low-power wake-up features for reactive and battery-powered applications.

Support for in-circuit debugger and ICSP™ serial programming for streamlined development and prototyping.

Memory Management and Data Processing Features of the PIC16F882-I/SO

The PIC16F882-I/SO provides robust memory resources:

5KB (2K x 14 words) flash program memory with a 100,000-cycle endurance, supporting in-system code updates and program memory read/write during runtime.

128 bytes SRAM and 128 bytes EEPROM, with EEPROM endurance rated at 1 million cycles and retention exceeding 40 years for both flash and EEPROM data.

Programmable code protection features help secure application firmware against unauthorized access.

This combination of persistent and volatile memory ensures reliable operation, frequent data logging, and code integrity in applications from control systems to sensor nodes.

Power Efficiency and Environmental Certification of the PIC16F882-I/SO

Power efficiency is a hallmark of the PIC16F882-I/SO. Typical standby current is as low as 50 nA at 2.0V, with operating current as low as 11 μA at 32 kHz and 220 μA at 4 MHz, minimizing energy draw in active and sleep states. The watchdog timer consumes only 1 μA at 2.0V, protecting memory and core logic from lock-up without draining power.

The device operates from a supply voltage range of 2.0V to 5.5V, supporting both battery and mains-powered designs. Integrated brown-out reset (BOR), power-on reset (POR), power-up timer (PWRT), and oscillator start-up timer (OST) ensure reliable startup and operation across unpredictable power conditions.

The PIC16F882-I/SO complies with RoHS3, offers unlimited moisture sensitivity level (MSL 1), and is REACH unaffected. Its environmental and export classifications include ECCN EAR99 and HTSUS code 8542.31.0001, indicating suitability for global deployment.

Package Details, Pin Configuration, and Installation Guidelines for the PIC16F882-I/SO

Available in a 28-pin SOIC package (7.50mm width), the PIC16F882-I/SO enables surface-mount integration for compact and automated production environments. The pin configuration offers flexibility for digital I/O, analog input, comparator input/output, timer, and communication peripherals. Engineers should reference detailed pin allocation tables to ensure correct peripheral mapping and signal routing, especially given the diversity of multiplexed functions per pin.

The operating temperature range is -40°C to +85°C, making the device suitable for industrial and extended temperature environments.

Comparison of PIC16F882-I/SO Series with Similar Devices

The PIC16F882-I/SO belongs to a family of microcontrollers sharing a similar architectural backbone but differing in memory capacity, I/O count, and peripheral availability. Comparison highlights include:

PIC16F882: 2048 words Flash, 128 bytes SRAM/EEPROM, 24 I/O, 11 ADC channels.

PIC16F883: 4096 words Flash, 256 bytes SRAM/EEPROM, 24 I/O, 11 ADC channels.

PIC16F884: 4096 words Flash, 256 bytes SRAM/EEPROM, 35 I/O, 14 ADC channels.

PIC16F886: 8192 words Flash, 368 bytes SRAM, 24 I/O, 11 ADC channels.

PIC16F887: 8192 words Flash, 368 bytes SRAM, 35 I/O, 14 ADC channels.

When selecting among these models, engineers should balance code size requirements, pin count (for expanded interface needs), and peripheral channel demands against the system’s complexity and resource constraints.

Alternative or Substitute Models for PIC16F882-I/SO

When considering alternatives to the PIC16F882-I/SO, engineers may evaluate other models within the same Microchip Technology family (such as PIC16F883, PIC16F884, PIC16F886, or PIC16F887) based on expanded memory or I/O needs. Equivalent devices from Microchip’s broader PIC16F series—with similar instruction set, core architecture, and peripheral mix—may be fit for replacement, provided designers verify compatibility in clocking, pinout, and peripheral coverage. For cross-brand comparison, selection engineers should focus on criteria such as 8-bit core architecture, flash program memory size, peripheral types (A/D, PWM, serial communication), package format (SOIC or SSOP), and analog channel count to ensure seamless migration.

Conclusion

The Microchip Technology PIC16F882-I/SO stands out as a robust, power-efficient 8-bit microcontroller solution for embedded control applications. Its balanced combination of memory, versatile peripherals, flexible packaging, and wide environmental compliance makes it an attractive option for engineers seeking reliable and cost-effective MCU platforms. Careful consideration of variant specifications, pin mapping, and peripheral requirements is essential to match the PIC16F882-I/SO or comparable devices precisely to application demands. As part of a mature microcontroller family, the PIC16F882-I/SO offers longevity, scalability, and integrability in modern electronic architectures.