This document is a data sheet for the enhanced flash microcontrollers PIC18F2420/2520/4420/4520 from Microchip Technology Inc. The product features 10-bit A/D conversion and nanoWatt technology.
The PIC18F2420/2520/4420/4520 family are 28/40/44‑pin enhanced flash microcontrollers with 10‑bit A/D converters, nanoWatt technology, and a wide range of peripherals including high‑current I/O, multiple timers, PWM modules, and serial interfaces. They support various power‑managed modes such as Run, Idle, and Sleep, with typical idle current as low as 5.8 µA and sleep current down to 0.1 µA.
Key features include up to 32 KB of flash program memory, up to 16 KB of SRAM, up to 1.5 KB of EEPROM, an 8 × 8 hardware multiplier, and flexible oscillator options (internal, external crystal, RC, or PLL). The devices operate from 2.0 V to 5.5 V and cover industrial to extended temperature ranges, making them suitable for a broad range of applications.
| Flash Program Memory (PIC18F2420/4420) | 16 KB |
|---|---|
| Flash Program Memory (PIC18F2520/4520) | 32 KB |
| SRAM (PIC18F2420/4420) | 8192 bytes |
| SRAM (PIC18F2520/4520) | 16384 bytes |
| ADC Resolution | 10‑bit |
| Idle Mode Current | 5.8 µA typical |
| Sleep Mode Current | 0.1 µA typical |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Temperature Range | -40 °C to +125 °C (Extended) |
| Package Pin Count | 28/40/44 pins |
Idle mode currents are down to 5.8 µA typical.
Sleep mode current is down to 0.1 µA typical.
The device operates from 2.0 V to 5.5 V.
The device supports -40 °C to +125 °C (Extended).