PIC16F886 8-bit 20 MHz CMOS Microcontroller DIP-28

PIC16F886 8-bit 20 MHz CMOS Microcontroller DIP-28 is a powerful yet versatile flash-based microcontroller that balances rich peripheral integration with high performance for embedded control applications. This 28-pin device features 8 KB of Flash program memory and 256 bytes of EEPROM, making it ideal for systems that require non-volatile data storage. Furthermore, its low-power NanoWatt technology ensures high efficiency in battery-operated designs. Consequently, engineers often select this chip for industrial control, medical monitoring, and consumer electronic projects. Therefore, the PIC16F886 provides a robust platform for developers needing a reliable, feature-packed 8-bit controller in a manageable through-hole package.

Key Features:

• NanoWatt Technology: Provides extreme low-power management with various sleep and wake-up modes to extend battery life.
• Enhanced Flash Memory: Offers 8,192 words of self-reprogrammable flash memory, allowing for field firmware updates.
• Integrated Peripherals: Includes a 10-bit Analog-to-Digital Converter (ADC) with up to 11 channels, two Capture/Compare/PWM (CCP) modules, and a Master Synchronous Serial Port (MSSP).
• Internal Oscillator: Features a precision internal oscillator block with software-selectable frequencies from 31 kHz to 8 MHz.
• Wide Operating Voltage: Supports a broad supply range from 2.0 V to 5.5 V, accommodating various power rail standards.

Technical Specifications:

• CPU Speed: Up to 5 MIPS (DC to 20 MHz clock input)
• Program Memory (Flash): 14 KB (8K x 14 words)
• SRAM Data Memory: 368 Bytes
• EEPROM Data Memory: 256 Bytes
• I/O Pins: 24 available pins
• ADC Resolution: 10-bit (11 Channels)
• Communication Interfaces: UART, SPI, I²C
• Timers: 2 x 8-bit, 1 x 16-bit

Mechanical Specifications:

• Package Type: DIP-28 (Dual In-line Package)
• Mounting Style: Through-hole (THT)
• Lead Count: 28 Pins
• Material: High-temperature plastic encapsulation with matte tin-plated leads.

Dimensions:

• Package Length: ≈ 34.67 mm (1.365 inches)
• Package Width: ≈ 7.24 mm (0.285 inches)
• Pin Pitch: 2.54 mm (0.100 inches)
• Row-to-Row Spacing: 7.62 mm (0.300 inches)

Pinout and Wiring:

• Pin 1 (MCLR/VPP): Connect to 5 V through a pull-up resistor (typically 10 kΩ) to enable the MCU; pull to ground for reset.
• Pin 20 (VDD): Connect to the positive power supply (+2.0 V to +5.5 V).
• Pin 8 & 19 (VSS): Connect these pins to the circuit ground (0 V).
• Pin 28 & 27 (ICSPDAT/ICSPCLK): Use these pins for In-Circuit Serial Programming via a programmer like PICkit.
• Wiring Note: However, always place a 0.1 μF decoupling capacitor as close as possible to the VDD and VSS pins to minimize electrical noise.

Datasheet Reference:

• Download Microchip PIC16F886 Datasheet

Commonly Used in:

• Industrial Logic Controllers: Managing sensor inputs and actuator outputs in automated production lines.
• Automotive Electronics: Controlling lighting modules, window lift systems, and dashboard indicators.
• Educational Development: Serving as a standard chip for learning assembly and C programming for microcontrollers.

Applications:

• Temperature Monitoring: Utilizing the internal ADC to process thermistor signals and display data via UART.
• Motor Control: Generating PWM signals to drive H-bridges for DC motor speed regulation.
• Smart Home Nodes: Acting as the central processor for localized security or climate control modules.

Equivalent Models:

• PIC16F883: A smaller memory variant (4 KB) with the same pinout for cost-sensitive designs.
• PIC18F2520: A higher-end 8-bit alternative offering an enhanced instruction set and more RAM.
• ATmega328P: A popular non-Microchip alternative, however, it requires a different toolchain and PCB layout.

Package Includes:

• 1 x PIC16F886 8-bit 20 MHz CMOS Microcontroller DIP-28