The Original Microchip PIC16F15223 8-Bit Flash Microcontroller is an essential, high-performance, cost-effective 14-pin MCU manufactured by Microchip Technology. Encapsulated in a prototyping-friendly standard PDIP-14 through-hole package, it is powered by an enhanced mid-range 8-bit core operating at speeds up to 32 MHz with a precision internal oscillator. The PIC16F15223 features a robust suite of Core Independent Peripherals (CIPs)—including a 10-bit Analog-to-Digital Converter with Computation (ADCC), Complementary Waveform Generator (CWG), Capture/Compare/PWM (CCP) modules, a 10-bit PWM, and an industry-standard serial EUSART/MSSP (I2C/SPI) communication interface. With Peripheral Pin Select (PPS) functionality, pin mappings can be flexibly configured to streamline PCB routing. It is widely utilized in home appliances, sensor signal conditioning, industrial automation, power management, consumer electronics, and DIY embedded development.

Specifications

• Part Number / Model: PIC16F15223-I/P / PIC16F15223 (Industrial Temperature Grade)
• Manufacturer: Microchip Technology
• Core Architecture: Enhanced Mid-Range 8-Bit PIC Core (49 Instructions)
• Package Type: PDIP-14
• Operating Supply Voltage Range (VDD): 1.8V to 5.5V DC (Wide operating supply range)
• Maximum CPU Operating Frequency: Up to 32 MHz (via internal HFINTOSC or external clock)
• Internal Oscillator: High-Frequency Internal Oscillator (HFINTOSC) up to 32 MHz (±1?ctory calibrated) and Low-Frequency LFINTOSC (31 kHz)
• Program Memory (Flash): 3.5 KB (2,048 Words Flash Program Memory, Self-Read/Write capability)
• Data SRAM: 256 Bytes
• Data EEPROM / HEF: 128 Bytes High-Endurance Flash (HEF) memory (100k endurance cycles)
• General Purpose I/O (GPIO): 12 User I/O Pins (11 Bi-directional I/O + 1 Input-Only Pin RA3/MCLR)
• Peripheral Pin Select (PPS): Digital peripheral I/O crossbar routing matrix on RA and RC ports
• Analog-to-Digital Converter (ADC): 10-Bit ADC with Computation (ADCC) and up to 11 Analog Input Channels
• Internal Fixed Voltage Reference (FVR): 1.024V, 2.048V, and 4.096V programmable references
• PWM / Timers / CCP:
  • 2x 10-bit PWM Modules
  • 2x Capture/Compare/PWM (CCP) Modules
  • 1x Complementary Waveform Generator (CWG) with dead-band control
  • Timer0 (8/16-bit), Timer1 (16-bit with gate), Timer2 (8-bit hardware limit timer)
• Serial Communication Peripherals:
  • 1x EUSART (Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter with LIN/DMX support)
  • 1x MSSP (Master Synchronous Serial Port supporting I2C Master/Slave and SPI Master/Slave)
• Power Management (eXtreme Low-Power - XLP): Ultra-low power modes with Sleep current down to < 20>
• Operating Ambient Temperature (TA): -40°C to +85°C (Industrial Grade) / up to +125°C (Extended Grade)
• Storage Temperature Range (Tstg): -65°C to +150°C
• Pinout Configuration (PDIP-14):
  • Pin 1: VDD (Positive Power Supply Input, +1.8V to +5.5V)
  • Pin 2: RA5 (GPIO / CLKIN / OSC1 / PWM / T1CKI)
  • Pin 3: RA4 (GPIO / CLKOUT / OSC2 / T1G)
  • Pin 4: RA3 / MCLR / VPP (Active-Low Master Clear Reset / Programming Voltage / Input Only)
  • Pin 5: RC5 (GPIO / CCP1 / PWM / CWG / Serial I/O via PPS)
  • Pin 6: RC4 (GPIO / C2IN+ / CCP2 / PWM / Serial I/O via PPS)
  • Pin 7: RC3 (GPIO / AN7 / C1IN3- / PPS Configurable)
  • Pin 8: RC2 (GPIO / AN6 / C1IN2- / PPS Configurable)
  • Pin 9: RC1 (GPIO / AN5 / C1IN1- / SCL / SCK via PPS)
  • Pin 10: RC0 (GPIO / AN4 / C2IN+ / SDA / SDI via PPS)
  • Pin 11: RA2 (GPIO / AN2 / INT / DAC1OUT / FVR)
  • Pin 12: RA1 / ICSPCLK (GPIO / AN1 / In-Circuit Serial Programming Clock)
  • Pin 13: RA0 / ICSPDAT (GPIO / AN0 / In-Circuit Serial Programming Data)
  • Pin 14: VSS (Ground / 0V Reference)

Features

• Core Independent Peripherals (CIPs): Hardware-based modules (CWG, CCP, 10-bit PWM, ADCC) operate autonomously from the CPU core, executing tasks with zero CPU overhead and reducing power consumption.
• Peripheral Pin Select (PPS): Complete pin mapping flexibility allows digital peripheral pins (UART TX/RX, SPI SCK/SDO/SDI, I2C SDA/SCL, PWM outputs) to be assigned to any GPIO pin to simplify PCB trace layouts.
• 10-Bit ADC with Computation (ADCC): Hardware-accelerated ADC automates functions such as averaging, oversampling, threshold comparison, and low-pass filtering without CPU intervention.
• Complementary Waveform Generator (CWG): Generates complementary, non-overlapping switching signals with programmable rising and falling dead-band delays to safely control half-bridge power drivers.
• Unified Serial Connectivity: Features both an independent hardware EUSART and an MSSP engine for simultaneous multi-device communication over I2C, SPI, and UART buses.
• Breadboard-Friendly PDIP-14 Package: Standard 0.1-inch (2.54mm) pitch through-hole package integrates effortlessly into breadboards, test sockets, and dual-layer prototype boards.

Common Applications

• Smart Home Appliances & White Goods: Front-panel controls, temperature regulation, user interfaces, and motor supervisory circuits for microwaves, blenders, and washing machines.
• Intelligent Sensor Interfaces: Sampling analog pressure, temperature, and current transducers via ADCC and relaying data over I2C/SPI/UART.
• Power Conversion & Motor Control: Direct PWM and CWG generation for half-bridge DC-DC converters, LED dimmers, and brushed DC motor speed controllers.
• Automotive & Industrial Auxiliaries: Small node LIN/UART protocol bridges, safety interlock monitors, and system watchdog supervisor modules.
• DIY Robotics & Prototyping: Compact microcontroller brain for sensor parsing, servo control, and serial communications on breadboard platforms.

Usage Tips

• In-Circuit Serial Programming (ICSP): For flashing and in-circuit debugging via Microchip PICkit (PICkit 3, 4, 5) or SNAP debuggers, connect:
  • VPP/MCLR to Pin 4 (RA3)
  • VDD (+3.3V or +5.0V) to Pin 1
  • VSS (GND) to Pin 14
  • ICSPDAT to Pin 13 (RA0)
  • ICSPCLK to Pin 12 (RA1)
• Decoupling Capacitor Placement: Place a **0.1µF (100nF) ceramic capacitor** directly across Pin 1 (VDD) and Pin 14 (VSS) with short traces to minimize power rail noise and ensure stable ADC operation.
• Peripheral Pin Select (PPS) Configuration: When routing UART, SPI, or PWM signals, configure the PPS registers in code (e.g., using MCC / Microchip Code Configurator) to map digital peripherals to your preferred GPIO pins.
• MCLR Pin Pull-Up: When Pin 4 (RA3/MCLR) is configured as the active-low reset pin, connect a **10kΩ pull-up resistor** from Pin 4 to VDD (with an optional 100nF capacitor to GND for noisy industrial environments). If configured as a general-purpose input (MCLRE = OFF), it operates as an input-only pin.
• ADC Voltage References: Utilize the internal Fixed Voltage Reference (FVR) set to 1.024V, 2.048V, or 4.096V for accurate ratiometric analog conversions regardless of fluctuations on the main VDD supply line.

Datasheet