Description

The PIC16F914-1 is a high-performance RISC CPU IC chip. It is designed to have a low-power consumption and long endurance. The microcontroller features are precision internal oscillator, power-saving sleep mode, and multiplexed master clear with a programmable code protection. The low-power features are standby current, operating current, and watchdog timer current. Peripheral features are a liquid crystal display module, analog comparator module, A/D Converter, timer, and synchronous serial port.

Specifications and features

• 35 instructions to learn
• DC – 20 MHz oscillator/clock input
• DC – 200 ns instruction cycle
• Program Memory Read (PMR) capability
• Interrupt capability
• 8-level deep hardware stack
• Direct, Indirect and Relative Addressing modes
• Precision Internal Oscillator calibrated to ±1%
• Software selectable frequency range of 8 MHz to 125 kHz
• Two-Speed Start-up mode
• External Oscillator fail detect for critical applications
• Software selectable 31 kHz internal oscillator
• Power-Saving Sleep mode
• Wide operating voltage range: 2.0V-5.5V
• Industrial and Extended temperature range
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Brown-out Reset (BOR) with software control option
• Enhanced Low-Current Watchdog Timer (WDT) with on-chip oscillator
• Multiplexed Master Clear with pull-up/input pin
• Programmable code protection
• High-Endurance Flash/EEPROM cell with 100,000 write Flash endurance and 1,000,000 write EEPROM endurance
• Flash/Data EEPROM retention: >40 years
• Standby Current: <100 nA @ 2.0V, typical
• Operating Current: 11 μA @ 32 kHz, 2.0V, typical; 220 μA @ 4 MHz, 2.0V, typical
• Watchdog Timer Current: 1 μA @ 2.0V, typical
• LCD up to 60/96/168 pixel drive capability on 28/40/64-pin devices, respectively
• Up to 24/35/53 I/O pins and 1 input-only pin
• In-Circuit Serial Programming™ (ICSP™) via two pins
• Analog comparator module with two analog comparators and programmable on-chip voltage reference (CVREF)
• A/D Converter: 10-bit resolution and up to 8 channels
• Timer0: 8-bit timer/counter with 8-bit programmable prescaler
• Enhanced Timer1: 16-bit timer/counter with prescaler and external Timer1 Gate (count enable)
• Timer2: 8-bit timer/counter with 8-bit period register, prescaler, and postscaler
• Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)
• Up to 2 Capture, Compare, PWM modules: 16-bit Capture, max. resolution 12.5 ns; 16-bit Compare, max. resolution 200 ns; 10-bit PWM, max. frequency 20 kHz
• Synchronous Serial Port (SSP) with I2C™ communication capability

Application Scenarios

The PIC16F914-1 is suitable for various types of electronic equipment, including metering, data-logging, and consumer appliances. It is also widely used in automotive and industrial control systems, as a microcontroller for motor control, lighting control, and sensor applications.

Comparison

• Low-power consumption
• High-endurance Flash/EEPROM cell
• Wide operating voltage range and industrial temperature
• Power-saving Sleep mode
• Enhanced Low-Current Watchdog Timer (WDT) with on-chip oscillator

• Not suitable for real-time operating system (RTOS) applications due to limited resources