Features of PIC16F877

Features of PIC16F877

The PIC16FXX series has more advanced and developed features when compared to its previous series. The important features of PIC16F877 series is given below.

General Features

o   High performance RISC CPU.

o   ONLY 35 simple word instructions.

o   All single cycle instructions except for program branches which are two cycles.

o   Operating speed: clock input (200MHz), instruction cycle (200nS).

o   Up to 368×8bit of RAM (data memory), 256×8 of EEPROM (data memory), 8k×14 of flash memory.

o   Pin out compatible to PIC 16C74B, PIC 16C76, PIC 16C77.

o   Eight level deep hardware stack.

o   Interrupt capability (up to 14 sources).

o   Different types of addressing modes (direct, Indirect, relative addressing modes).

o   Power on Reset (POR).

o   Power-Up Timer (PWRT) and oscillator start-up timer.

o   Low power- high speed CMOS flash/EEPROM.

o   Fully static design.

o   Wide operating voltage range (2.0 – 5.56)volts.

o   High sink/source current (25mA).

o   Commercial, industrial and extended temperature ranges.

o   Low power consumption (<0.6mA typical @3v-4MHz, 20µA typical @3v-32MHz and <1 A typical standby).

Peripheral Features

o   Timer 0: 8 bit timer/counter with pre-scalar.

o   Timer 1:16 bit timer/counter with pre-scalar.

o   Timer 2: 8 bit timer/counter with 8 bit period registers with pre-scalar and post-scalar.

o   Two Capture (16bit/12.5nS), Compare (16 bit/200nS), Pulse Width Modules (10bit).

o   10bit multi-channel A/D converter

o   Synchronous Serial Port (SSP) with SPI (master code) and I2C (master/slave).

o   Universal Synchronous Asynchronous Receiver Transmitter (USART) with 9 bit address detection.

o   Parallel Slave Port (PSP) 8 bit wide with external RD, WR and CS controls (40/46pin).

o   Brown Out circuitry for Brown-Out Reset (BOR).

Key Features

o   Maximum operating frequency is 20MHz.

o   Flash program memory (14 bit words), 8KB.

o   Data memory (bytes) is 368.

o   EEPROM data memory (bytes) is 256.

o   5 input/output ports.

o   3 timers.

o   2 CCP modules.

o   2 serial communication ports (MSSP, USART).

o   PSP parallel communication port

o   10bit A/D module (8 channels)

Analog Features

o   10bit, up to 8 channel A/D converter.

o   Brown Out Reset function.

o   Analog comparator module.

Special Features

o   100000 times erase/write cycle enhanced memory.

o   1000000 times erase/write cycle data EEPROM memory.

o   Self programmable under software control.

o   In-circuit serial programming and in-circuit debugging capability.

o   Single 5V,DC supply for circuit serial programming

o   WDT with its own RC oscillator for reliable operation.

o   Programmable code protection.

o   Power saving sleep modes.

o   Selectable oscillator options.

Reference:datasheet