The plot of the blog

The main focus of this blog is on the applications of PIC micro controllers. So here is a brief description of the features of PIC16F877:-

RISC architecture
• Only 35 instructions to learn
• All single-cycle instructions except branches

Operating frequency 0-20 MHz

Precision internal oscillator

• Factory calibrated

• Software selectable frequency range of 8MHz to 31KHz

Power supply voltage 2.0-5.5V

• Consumption: 220uA (2.0V, 4MHz), 11uA (2.0 V, 32 KHz) 50nA (stand-by mode)

Power-Saving Sleep Mode

Brown-out Reset (BOR) with software control option

35 input/output pins

• High current source/sink for direct LED drive

• software and individually programmable pull-up resistor

• Interrupt-on-Change pin

8K ROM memory in FLASH technology

• Chip can be reprogrammed up to 100.000 times

In-Circuit Serial Programming Option

• Chip can be programmed even embedded in the target device

256 bytes EEPROM memory

• Data can be written more than 1.000.000 times

368 bytes RAM memory

A/D converter:

• 14-channels

• 10-bit resolution

3 independent timers/counters

Watch-dog timer

Analogue comparator module with

• Two analogue comparators

• Fixed voltage reference (0.6V)

• Programmable on-chip voltage reference

PWM output steering control

Enhanced USART module

• Supports RS-485, RS-232 and LIN2.0

• Auto-Baud Detect

Master Synchronous Serial Port (MSSP)

• supports SPI and I2C mode