PIC32MX570F512L-I/PT 查看數據表（PDF） - Microchip Technology

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PIC32MX570F512L-I/PT

32-bit Microcontrollers (up to 512 KB Flash and 64 KB SRAM) with Audio/Graphics/Touch (HMI), CAN, USB, and Advanced Analog

Microchip Technology 

PIC32MX1XX/2XX/5XX 64/100-PIN FAMILY

2.9 Considerations When Interfacing

to Remotely Powered Circuits

2.9.1 NON-5V TOLERANT INPUT PINS

A quick review of the absolute maximum rating section

in 31.0 “40 MHz Electrical Characteristics” will indi-

cate that the voltage on any non-5v tolerant pin may not

exceed AVDD/VDD + 0.3V. Figure 2-5 shows an exam-

ple of a remote circuit using an independent power

source, which is powered while connected to a PIC32

non-5V tolerant circuit that is not powered.

FIGURE 2-5:

PIC32 NON-5V TOLERANT CIRCUIT EXAMPLE

Note: When VDD power is OFF.

PIC32

VDD

Non-5V Tolerant

Pin Architecture

On/Off

Remote

0.3V dVIH d 3.6V

Remote

GND

AN2/RB0

ANSEL

I/O IN

I/O OUT

TRIS

PIC32

POWER

SUPPLY

Current Flow

VSS

DS60001290E-page 30

 2014-2017 Microchip Technology Inc.

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