The document is a technical handbook for the PIC18F85J90 series microcontrollers with integrated LCD driver. It includes device overviews, electrical characteristics, pin‑out diagrams for the 64‑ and 80‑pin TQFP packages, and detailed descriptions of peripherals such as timers, watchdog, MSSP, EUSART, A/D converter, and LCD driver.
Key sections cover oscillator configuration, power‑management modes, memory architecture, peripheral modules, and package information. The handbook also provides contact information for Microchip sales and support locations worldwide. This manual is written in Chinese.
| Flash program memory | 32 K words |
|---|---|
| Operating voltage range | 2.0 V – 3.6 V |
| Watchdog timer programmable period | 4 ms – 131 s |
| LCD segments and pixels | Up to 48 segments and 192 pixels |
| Operating temperature range | -40 °C – +85 °C |
| Number of 8‑bit/16‑bit timers | 4 |
The device operates from 2.0 V to 3.6 V.
It can drive up to 48 segments and 192 pixels.
The watchdog timer can be programmed from 4 ms up to 131 s.
The PIC18F85J90 is rated for -40 °C to +85 °C.