MICROCHIP PIC16F819-I/P 8-bit Flash Microcontroller, 3.5KB, 18-pin DIP

The MICROCHIP PIC16F819-I/P is a versatile 8-bit Enhanced Flash Microcontroller featuring power-saving nanoWatt technology, making it an ideal choice for a wide range of embedded applications. Part of the reliable mid-range PIC® family, this device offers a balanced set of features including 3.5KB of flash program memory, 256 bytes of RAM, and 256 bytes of EEPROM data memory for non-volatile storage.

A key advantage is its integrated 8MHz internal oscillator, which helps reduce external component count and simplifies board design. For analogue sensing, it provides five channels of a 10-bit Analogue-to-Digital (A/D) converter, enabling precise measurement of sensor inputs. Communication is flexible with a synchronous serial port configurable as either a 3-wire SPI™ or a 2-wire I²C™ bus interface.

Core Features & Specifications

• Program Memory: 3.5KB Enhanced Flash (typical 100,000 erase/write cycles)
• Data Memory: 256 bytes RAM, 256 bytes EEPROM (data retention >40 years)
• I/O Capability: 16 individually controllable I/O pins with high 25mA sink/source current
• On-chip Peripherals: Capture/Compare/PWM module, 5x 10-bit ADC channels
• Communication: Supports SPI and I²C protocols
• Development Support: In-Circuit Serial Programming™ (ICSP™) and In-Circuit Debugging via two pins
• Package: 18-pin Dual In-line Package (DIP), suitable for through-hole mounting
• Operating Range: Industrial temperature range from -40°C to +85°C, with a supply voltage of 4V to 5.5V

Engineers will appreciate the development flexibility offered by low-voltage programming and processor read/write access to program memory. Its robust design and industrial temperature rating make it suitable for demanding environments, from automotive subsystems to industrial controls and consumer electronics. Please note: this is an ESD-sensitive device; proper handling and