MCP2518FD datasheet(4/96 Pages) MICROCHIP

tên linh kiện	MCP2518FD

Giải thích chi tiết về linh kiện	External CAN FD Controller with SPI Interface

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MCP2518FD

DS20006027A-page 4

 2019 Microchip Technology Inc.

1.3

Typical Application

Figure 1-2 shows an example of a typical application

of the MCP2518FD device. In this example, the

microcontroller operates at 3.3V.

The MCP2518FD device interfaces directly with

microcontrollers operating at 2.7V to 5.5V. In addition, the

MCP2518FD device connects directly to high-speed

CAN FD transceivers. There are no external level shifters

required when connecting VDD of the MCP2518FD and

the microcontroller to VIO of the transceiver.

The VDD of the CAN FD transceiver is connected to

5V.

The SPI interface is used to configure and control the

CAN FD controller.

The MCP2518FD device signals interrupts to the

microcontroller by using INT, INT0 and INT1. Interrupts

need to be cleared by the microcontroller through SPI.

The

CLKO

provides

the

clock

the

microcontroller.

FIGURE 1-2:

MCP2518FD INTERFACING WITH A 3.3V MICROCONTROLLER

3.3V LDO

5V LDO

VBAT

0.1uF

CANH

CANL

0.1uF

120

VSS

VDD

RXCAN

TXCAN

CLKO

nCS

SCK

INT

SDI

SDO

VDD

RA0

VSS

OSC1

SCK

SDI

SDO

INT0

VDD

TXD

RXD

STBY

VSS

VIO

CANH

CANL

0.1uF

INT0

INT1

OSC2

OSC1

22pF

INT1

INT2

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