This document is the PICmicro® Mid-Range MCU series reference manual released by Microchip Technology Inc. in 2004. It provides information on the application of the products and the replacement of updated information. It reminds users to ensure that the application complies with technical specifications and takes responsibility. It declares no express or implied statements or warranties regarding the use, quality, performance, merchantability, or suitability for a particular purpose of the products, and disclaims any liability for the consequences of using the information. It is prohibited to use the products as critical components in life support systems without written authorization, and transfer any licenses without permission.
This reference manual provides detailed information on the PICmicro medium microcontroller series, including device structure, development support, and programming conventions. It serves as a comprehensive guide for engineers designing applications with these 8‑bit microcontrollers.
The document is organized into chapters such as Oscillator, Reset, CPU and ALU, Memory, I/O ports, Timers, USART, ADC modules, LCD, and Watchdog Timer, each containing introductions, register descriptions, design tips, and related application notes. This manual is written in Chinese.
| Internal RC oscillator frequency | 4 MHz |
|---|---|
| Low‑power oscillator maximum frequency | 200 kHz |
| Program memory bus width | 14 bits |
| Data memory bus width | 8 bits |
The internal RC oscillator operates at 4 MHz.
The low‑power oscillator can run up to 200 kHz.