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