NOTICE:  Bulk Purchase is not available due to effected trade route from China. Online Prices are not final.


Rs. 650
DBS 199, TMD10,Th5,KRT
In stock


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


  1. 40-pin Low Power Microcontroller
  2. Flash Program Memory: 32 kbytes
  3. EEPROM Data Memory: 256 bytes
  4. SRAM Data Memory: 2048 bytes
  5. I/O Pins: 35
  6. Timers: One 8-bit / Three 16-Bit
  7. A/D Converter: 10-bit Thirteen Channels
  8. PWM: 10-bit Two Modules
  9. Enhanced USART: Addressable with RS-485, RS-232 and LIN Support
  10. MSSP: SPI and I²C Master and Slave Support
  11. External Oscillator: up to 48MHz
  12. Internal Oscillator: 8MHz


  1. Power Management Features
    1. Run: CPU on, Peripherals on
    2. Idle: CPU off, Peripherals on
    3. Sleep: CPU off, Peripherals off
    4. Idle mode Currents Down to 5.8 μA Typical
    5. Sleep mode Current Down to 0.1 μA Typical
    6. Timer1 Oscillator: 1.1 μA, 32 kHz, 2V
    7. Watchdog Timer: 2.1 μA,32 kHz, 2V Typical
    8. Two-Speed Oscillator Start-up
  2. Flexible Oscillator Structure:
    1. Four Crystal modes, up to 48 MHz
    2. Internal Oscillator Block:
      1. 8 user-selectable frequencies, from 31 kHz to 8 MHz
      2. User-tunable to compensate for frequency drift
    3. Secondary Oscillator using Timer1 @ 32 kHz
    4. Fail-Safe Clock Monitor:
      1. Allows for safe shutdown if peripheral clock stops
  3. Peripheral Highlights:
    1. High-Current Sink/Source 25 mA/25 mA
    2. Three Programmable External Interrupts
    3. Four Input Change Interrupts
    4. Up to 2 Capture/Compare/PWM (CCP) modules, one with Auto-Shutdown (28-pin devices)
    5. Enhanced Capture/Compare/PWM (ECCP) module (40/44-pin devices only):
      1. One, two or four PWM outputs
      2. Selectable polarity
      3. Programmable dead time
      4. Auto-shutdown and auto-restart
  4. Peripheral Highlights (Continued):
    1. Master Synchronous Serial Port (MSSP) module Supporting 3-Wire SPI (all 4 modes) and I2C™ Master and Slave modes
    2. Enhanced Addressable USART module:
      1. Supports RS-485, RS-232 and LIN/J2602
      2. RS-232 operation using internal oscillator block (no external crystal required)
      3. Auto-wake-up on Start bit
      4. Auto-Baud Detect
    3. 10-Bit, up to 13-Channel Analog-to-Digital (A/D)
    4. Converter module:
      1. Auto-acquisition capability
      2. Conversion available during Sleep
    5. Dual Analog Comparators with Input Multiplexing
    6. Programmable 16-Level High/Low-Voltage 
    7. Detection (HLVD) module:
      1. Supports interrupt on High/Low-Voltage Detection
  5. Special Microcontroller Features:
    1. C Compiler Optimized Architecture:
      1. Optional extended instruction set designed to optimize re-entrant code
    2. 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical
    3. 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical
    4. Flash/Data EEPROM Retention: 100 Years Typical
    5. Self-Programmable under Software Control
    6. Priority Levels for Interrupts
    7. 8 x 8 Single-Cycle Hardware Multiplier
    8. Extended Watchdog Timer (WDT):
      1. Programmable period from 4 ms to 131s
    9. Single-Supply 5V In-Circuit Serial Programming™ (ICSP™) via Two Pins
    10. In-Circuit Debug (ICD) via Two Pins
    11. Wide Operating Voltage Range: 2.0V to 5.5V
    12. Programmable Brown-out Reset (BOR) with Software Enable Option

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