The PIC18F2423/2523/4423/4523 family are enhanced‑flash 8‑bit microcontrollers with 12‑bit ADC, up to 13 conversion channels, and 28, 40 or 44 pins. They support multiple power‑saving modes, internal oscillators up to 25 MHz, and a range of communication peripherals such as MSSP, EUSART, and ECCP.
The document includes pin‑out diagrams, memory organization tables, electrical characteristics, and detailed descriptions of peripherals like timers, PWM modules, comparators, and voltage‑monitoring circuits. It also lists ordering information, temperature ranges, and packaging options. This manual is written in Chinese.
| ADC resolution | 12‑bit |
|---|---|
| Number of ADC channels | 13 |
| Program memory (PIC18F2423) | 16 KB |
| Program memory (PIC18F2523) | 32 KB |
| Operating voltage range | 2.0 V – 5.5 V |
| Maximum clock frequency | 25 MHz |
| Idle mode current consumption | 5.8 nA |
| Number of I/O pins | 28 / 40 / 44 |
| PWM outputs (ECCP) | 1, 2 or 4 |
The devices operate from 2.0 V to 5.5 V.
Up to 13 conversion channels are provided by the 12‑bit ADC module.
The PIC18F2423 includes 16 KB of flash program memory.