PIC16F676-I/SL 8-Bit 20MHz CMOS Microcontroller SOIC-14

PIC16F676-I/SL 8-Bit 20MHz CMOS Microcontroller SOIC-14 is a compact yet powerful general-purpose microcontroller that offers robust control capabilities for a wide array of embedded applications. This device features Microchip’s high-performance Mid-Range core architecture, delivering up to 5 Million Instructions Per Second (MIPS) at its maximum clock speed. It integrates essential peripherals, including a 10-bit Analog-to-Digital Converter (ADC), Timers, and an on-chip precision oscillator, making it an ideal single-chip solution. Consequently, designers can minimize external component count and significantly reduce overall Bill of Materials (BOM) cost. Therefore, rely on the PIC16F676-I/SL to provide cost-effective and highly reliable intelligence for consumer electronics, appliance control, and small industrial sensors.

Key Features:

• High-Performance CPU: Utilizes a RISC core with a 35-instruction set, maximizing code efficiency and execution speed up to 20 MHz.
• Integrated ADC: Features an on-chip 10-bit Analog-to-Digital Converter with 8 input channels, allowing direct interfacing with analog sensors and signals.
• Internal Oscillator: Includes a precision internal oscillator factory calibrated to ±1% accuracy, reducing the need for an external crystal.
• Wide Voltage Operation: Supports an operating voltage range from 2.0 V to 5.5 V, ensuring compatibility across various power environments.
• SOIC Package: The Surface Mount Device (SMD) SOIC-14 package enables use in space-constrained and modern, high-density PCB designs.

Technical Specifications:

• CPU Architecture: Mid-Range 8-bit RISC
• Maximum Clock Frequency: 20 MHz (5 MIPS)
• Program Memory Type: Flash
• Program Memory Size: 1.75 K-Words (3.5 KB)
• SRAM Data Memory: 64 Bytes
• EEPROM Data Memory: 128 Bytes
• I/O Pins: 12 Pins
• Operating Voltage Range: 2.0 V to 5.5 V
• Operating Temperature Range: −40°C to +85°C (Industrial Grade)

Mechanical Specifications:

• Package Type: SOIC (Small Outline Integrated Circuit)
• Pin Count: 14 Pins
• Mounting: Surface Mount Device (SMD/SMT)
• IC Fabrication Technology: CMOS Flash
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited floor life at ≤30°C/85% RH)

Dimensions:

• Body Length (Nominal): ≈ 8.65 mm
• Body Width (Nominal): ≈ 3.90 mm
• Pitch (Lead Spacing): 1.27 mm (0.050 inch)
• Total Height: ≈ 1.75 mm
• Weight: < 0.5 g (Extremely small form factor)

Pinout and Wiring:

• VDD (Pin 14): Connect to the positive power supply (2.0 V to 5.5 V).
• VSS (Pin 5): Connect to the ground reference (0 V).
• RA0-RA5 (Port A): These are general-purpose I/O pins, including analog inputs (AN0-AN4) and the internal oscillator output.
• RC0-RC5 (Port C): These are general-purpose I/O pins, which also handle ICSP programming connections (MCLR, PGD, PGC).
• MCLR/Vpp (Pin 4): Master Clear/Programming Voltage. Therefore, ensure proper pull-up or control for reliable operation and programming.
• Wiring Note: Always decouple VDD and VSS with a ceramic capacitor (≈ 0.1 μF) placed as close as possible to the pins to stabilize the power supply.

Datasheet Reference:

• Download Microchip PIC16F676 Datasheet

Commonly Used in:

• Small Appliance Control: The primary controller in simple coffee makers, toasters, and basic thermostat units.
• LED Lighting Drivers: Used to manage sequences, brightness, and basic communication in LED strips and fixtures.
• Cost-Sensitive Sensor Systems: Provides local processing and data conversion for temperature, humidity, and simple proximity sensors.

Applications:

• Timing and Sequencing: Running precise internal timers for scheduled events and pulse generation.
• Keypad Scanning: Efficiently handling matrix keypads and debouncing for user input interfaces.
• Analog Signal Monitoring: Converting analog sensor data into digital values using the integrated 10-bit ADC for decision-making.
• Battery-Powered Devices: Its low power consumption makes it perfect for portable, battery-operated instruments and tools.

Equivalent Models:

• PIC16F630-I/SL: A smaller memory version within the same family, often used when less code space is required.
• ATtiny85 (Microchip/Atmel): A popular 8-pin alternative, however, the PIC16F676 offers a higher pin count and more robust ADC channels.
• PIC12F675: The 8-pin version of the same core family, functionally similar but lacking the full I/O capability of the 14-pin model.

Package Includes:

• 1 x PIC16F676-I/SL 8-Bit 20MHz CMOS Microcontroller SOIC-14