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PIC18LF4520T-I/PT


8-bit PIC18 MCU, 40MHz, 32KB Flash, nanoWatt, 2.0-5.5V, TQFP-44

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Manufacturer Part:

PIC18LF4520T-I/PT

Package:

TQFP-44 (10×10×1.2 mm, 0.8mm pitch)

Brand:
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Description

Product Overview

The PIC18LF4520T-I/PT from Microchip Technology is an enhanced 8-bit PIC18 flash microcontroller with 32 KB Flash, 1536 bytes SRAM, and 256 bytes EEPROM. Running at up to 40 MHz (10 MIPS) with nanoWatt technology for ultra-low power modes, it features a 10-bit ADC, Enhanced CCP/PWM, MSSP (SPI/I2C), EUSART with LIN, and dual comparators in a TQFP-44 package. The LF variant supports 2.0V to 5.5V operation.

Key Specifications

Core PIC18 (8-bit enhanced RISC)
Max Clock Frequency 40 MHz (10 MIPS)
Flash Memory 32 KB (16384 words)
SRAM 1536 bytes
Data EEPROM 256 bytes
Operating Voltage 2.0V to 5.5V (LF version)
GPIO 36
ADC 10-bit, 13 channels, 100 ksps
Comparators 2 (with input multiplexing)
PWM Up to 5 outputs (ECCP + CCP)
Communication 1× EUSART (LIN/RS-485/RS-232), 1× MSSP (SPI/I2C master/slave)
Timers 4 (1× 16-bit, 2× 8-bit, 1× 8-bit with WDT)
Operating Temperature -40°C to +85°C (I grade)
Package TQFP-44 (10×10 mm)

Features

  • nanoWatt technology: Idle down to 5.8 µA, Sleep down to 0.1 µA
  • Two-Speed Oscillator Start-up for fast wake
  • Fail-Safe Clock Monitor for reliable operation
  • Enhanced CCP (ECCP) with 1/2/4 PWM outputs, dead time, auto-shutdown
  • 8×8 single-cycle hardware multiplier
  • Programmable 16-level High/Low Voltage Detection (HLVD)
  • Internal oscillator: 31 kHz to 8 MHz with 4× PLL (up to 32 MHz)
  • Extended instruction set for optimized re-entrant code

Applications

  • Industrial control and instrumentation
  • Motor control with ECCP PWM outputs
  • Consumer electronics and appliance controllers
  • Battery-powered portable devices
  • Automotive body electronics

The PIC18LF4520T-I/PT from Microchip is an 8-bit PIC18 MCU with 32 KB Flash, 1536 bytes SRAM, and 256 bytes EEPROM running at 40 MHz. Featuring nanoWatt technology for ultra-low power (0.1 µA Sleep), 10-bit ADC, ECCP with up to 5 PWM outputs, MSSP (SPI/I2C), EUSART with LIN, and dual comparators, it operates from 2.0V to 5.5V in a TQFP-44 package for industrial, motor control, and battery-powered applications.

The PIC18LF4520T-I/PT uses Microchip’s PIC18 enhanced RISC architecture with a 2-stage pipeline. Most instructions execute in one cycle (100 ns at 40 MHz). The 8×8 hardware multiplier completes in a single cycle. The nanoWatt technology provides multiple power-managed modes: Run, Idle (CPU off, peripherals on, 5.8 µA), and Sleep (0.1 µA). The Two-Speed Start-up feature uses the internal oscillator for instant wake-up while the external crystal stabilizes. The Fail-Safe Clock Monitor detects external clock failure and automatically switches to the internal oscillator. The ECCP module provides up to 4 PWM outputs with programmable dead time for half-bridge/full-bridge motor drive, plus auto-shutdown on fault and auto-restart. The MSSP supports SPI (all 4 clock modes) and I2C (master/slave at 400 kHz). The internal oscillator runs from 31 kHz to 8 MHz with a 4× PLL for up to 32 MHz system clock without external components.

Pin Group Name Type Function
Power VDD, VSS, AVDD, AVSS Power Digital and analog supply/ground
Reset MCLR/VPP/RE3 Input Master clear with pull-up / programming voltage
Oscillator OSC1/CLKI, OSC2/CLKO I/O Primary oscillator (up to 40 MHz)
Debug PGC, PGD I/O ICSP programming and ICD debug
ADC RA0/AN0-RA5/AN4, RE0/AN5-RE2/AN7 I/O 13 analog input channels
ECCP/PWM RC1-RC2, RD4-RD7 I/O ECCP PWM outputs with dead time
MSSP RC3/SCK/SCL, RC4/SDI/SDA, RC5/SDO I/O SPI/I2C master-slave interface
EUSART RC6/TX/CK, RC7/RX/DT I/O Enhanced USART with LIN support
Comparators RA2-RA5 (C1IN+, C1IN-, C2IN+, C2IN-) I/O Dual comparator inputs
Parallel Port RD0-RD7, RE0-RE2 I/O Parallel slave port (PSP)
  • Industrial PLC and process monitoring with analog sensing
  • Motor control: BLDC, stepper, DC motor with ECCP PWM
  • Consumer appliance controllers with LIN bus communication
  • Battery-powered portable instruments with nanoWatt sleep modes
  • Automotive body electronics: lighting, door, window control
Manufacturer Part Number Package Notes
Microchip PIC18F4520-I/PT TQFP-44 5V-only version (4.2-5.5V)
Microchip PIC18F4520T-I/PT TQFP-44 Tape and reel, LF version
Microchip PIC18F46K22-I/PT TQFP-44 64KB Flash, more peripherals, lower power
Microchip PIC18F4550-I/PT TQFP-44 With USB 2.0, 32KB Flash
ST STM32F103C8T6 LQFP-48 32-bit Cortex-M3 alternative
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