28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
The PIC18F2420/2520/4420/4520 family provides 28‑, 40‑, and 44‑pin enhanced flash microcontrollers featuring low‑power modes, high‑current I/O, and a rich set of peripherals such as multiple timers, PWM, SPI/I²C, and a 10‑bit ADC. Key specifications include idle current as low as 5.8 µA, sleep current down to 0.1 µA, and a wide operating voltage range of 2.0 V to 5.5 V.
The document includes detailed sections on device overview, oscillator configurations, power‑managed modes, memory organization, peripheral modules, electrical characteristics, packaging information, and migration guides for various device families.
| Idle mode current | 5.8 µA typical |
|---|---|
| Sleep mode current | 0.1 µA typical |
| High‑current I/O sink/source | 25 mA each |
| Watchdog Timer current | 2.1 µA |
| Operating voltage range | 2.0 V to 5.5 V |
| Flash erase/write cycles | 100,000 cycles typical |
| Data EEPROM erase/write cycles | 1,000,000 cycles typical |
| Flash/Data EEPROM retention | 100 years typical |
| Hardware multiplier | 8 × 8 single‑cycle |
The idle mode current is down to 5.8 µA typical.
The sleep mode current is down to 0.1 µA typical.
They operate from 2.0 V to 5.5 V.
The ECCP module can provide up to four PWM outputs.