Microchip PIC18F2420/2520/4420/4520 Datasheet

About this manual

This datasheet describes the PIC18F2420, PIC18F2520, PIC18F4420, and PIC18F4520 28/40/44‑pin enhanced flash microcontrollers. It covers device overview, oscillator options, power‑managed modes, memory architecture, peripheral modules, and packaging information.

Key features include nanoWatt technology with idle current as low as 5.8 µA and sleep current of 0.1 µA, up to 32 KB flash, 768 bytes EEPROM, 10‑bit 13‑channel ADC, high‑current I/O (25 mA sink/source), and multiple communication interfaces such as MSSP (SPI/I²C) and EUSART (RS‑485/RS‑232/LIN).

What's inside

• Device Overview
• Oscillator Configurations
• Power Managed Modes
• Flash Program Memory
• Data EEPROM Memory
• Hardware Multiplier
• Interrupts
• I/O Ports
• Timer Modules
• Analog-to-Digital Converter

Specifications

Frequently asked questions

How much flash program memory does the PIC18F2520 provide?

The PIC18F2520 provides 32 KB of flash program memory.

What is the operating voltage range for the PIC18F2420 series?

The devices operate from 2.0 V to 5.5 V.