PIC18F4550 Flash 40-pin 32kB 48MHz Microcontroller (Microchip)

Specifications

• 40-pin Low Power Microcontroller
• Flash Program Memory: 32 kbytes
• EEPROM Data Memory: 256 bytes
• SRAM Data Memory: 2048 bytes
• I/O Pins: 35
• Timers: One 8-bit / Three 16-Bit
• A/D Converter: 10-bit Thirteen Channels
• PWM: 10-bit Two Modules
• Enhanced USART: Addressable with RS-485, RS-232 and LIN Support
• MSSP: SPI and I²C Master and Slave Support
• External Oscillator: up to 48MHz
• Internal Oscillator: 8MHz

Feature

• Power Management Features
  • Run: CPU on, Peripherals on
  • Idle: CPU off, Peripherals on
  • Sleep: CPU off, Peripherals off
  • Idle mode Currents Down to 5.8 μA Typical
  • Sleep mode Current Down to 0.1 μA Typical
  • Timer1 Oscillator: 1.1 μA, 32 kHz, 2V
  • Watchdog Timer: 2.1 μA,32 kHz, 2V Typical
  • Two-Speed Oscillator Start-up
• Flexible Oscillator Structure:
  • Four Crystal modes, up to 48 MHz
  • Internal Oscillator Block:
    • 8 user-selectable frequencies, from 31 kHz to 8 MHz
    • User-tunable to compensate for frequency drift
  • Secondary Oscillator using Timer1 @ 32 kHz
  • Fail-Safe Clock Monitor:
    • Allows for safe shutdown if peripheral clock stops
• Peripheral Highlights:
  • High-Current Sink/Source 25 mA/25 mA
  • Three Programmable External Interrupts
  • Four Input Change Interrupts
  • Up to 2 Capture/Compare/PWM (CCP) modules, one with Auto-Shutdown (28-pin devices)
  • Enhanced Capture/Compare/PWM (ECCP) module (40/44-pin devices only):
    • One, two or four PWM outputs
    • Selectable polarity
    • Programmable dead time
    • Auto-shutdown and auto-restart
• Peripheral Highlights (Continued):
  • Master Synchronous Serial Port (MSSP) module Supporting 3-Wire SPI (all 4 modes) and I2C™ Master and Slave modes
  • Enhanced Addressable USART module:
    • Supports RS-485, RS-232 and LIN/J2602
    • RS-232 operation using internal oscillator block (no external crystal required)
    • Auto-wake-up on Start bit
    • Auto-Baud Detect
  • 10-Bit, up to 13-Channel Analog-to-Digital (A/D)
  • Converter module:
    • Auto-acquisition capability
    • Conversion available during Sleep
  • Dual Analog Comparators with Input Multiplexing
  • Programmable 16-Level High/Low-Voltage 
  • Detection (HLVD) module:
    • Supports interrupt on High/Low-Voltage Detection
• Special Microcontroller Features:
  • C Compiler Optimized Architecture:
    • Optional extended instruction set designed to optimize re-entrant code
  • 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical
  • 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical
  • Flash/Data EEPROM Retention: 100 Years Typical
  • Self-Programmable under Software Control
  • Priority Levels for Interrupts
  • 8 x 8 Single-Cycle Hardware Multiplier
  • Extended Watchdog Timer (WDT):
    • Programmable period from 4 ms to 131s
  • Single-Supply 5V In-Circuit Serial Programming™ (ICSP™) via Two Pins
  • In-Circuit Debug (ICD) via Two Pins
  • Wide Operating Voltage Range: 2.0V to 5.5V
  • Programmable Brown-out Reset (BOR) with Software Enable Option

*Image shown is a representation only.