PIC18F2550 (Enhanced Flash, USB Microcontrollers)

CPU

8-bit

Total Number of Pins

28

Operating Voltage

+4.0 to +5.5 V (+5.5V being absolute maximum)

Number of  programmable I/O pins

24

Communication Interface

USB Serial Interface (15,16 PINS) [Can be used for programming this controller]

Master/Slave SPI Serial Interface(7,18,21,22PINS) [Can be used for programming this controller]

Programmable Serial UART(17,18PINS) [Can be used for programming this controller]

Two-wire Serial Interface(21,22PINS)[Can be used to connect peripheral devices like sensors and LCDs]

ADC Module

10channels, 10-bit resolution ADC

Timer Module

One8-bit counter, Three16-bit counter

Analog Comparators

2

PWM channels

2

External Oscillator

Up to 48MHz

Internal Oscillator

32KHz-8MHz  Calibrated Internal Oscillator

Program memory Type

Flash

Program memory / Flash memory

32Kbytes[10000 write/erase cycles]

CPU Speed

12 MIPS

RAM memory

2KBytes

EEPROM memory

256Bytes

Watchdog Timer

Programmable Watchdog Timer with Separate On-chipOscillator

Power Save Modes

Available

Operating Temperature

-40°C to +85°C(+85 being absolute maximum, -40 being absolute minimum)