F452-F4520.pdf

PIC单片机移植资料
F452-F4520.pdf
PIC18F452 → PIC18F4520 Migration
DEVICE MIGRATIONS
The PIC18F4520 is an extended architecture based on the PIC18F452 family which offers many new features, including
extended instruction set, power management modes, higher speed ADC, Enhanced USART and Enhanced CCP
modules. This document is intended to describe the functional differences, configuration differences and the electrical
specification differences that are present when migrating from one device to the next. Table 1 summarizes the features
that may have migration impact on the software code developed for the PIC18F452. Table 2 lists the new and modified
features of the PIC18F4520 that should not have any migration impact. Table 3 and Table 4 summarize the differences
in the SFRs and configuration memory, re