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MCP2517FD Datasheet(PDF) 4 Page - Microchip Technology

Part # MCP2517FD
Description  External CAN FD Controller with SPI Interface
PDF  98 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP2517FD Datasheet(HTML) 4 Page - Microchip Technology

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MCP2517FD
DS20005688B-page 4
 2017-2018 Microchip Technology Inc.
1.3
Typical Application
Figure 1-2 shows an example of a typical application of
the MCP2517FD. In this example, the microcontroller
operates at 3.3V.
The MCP2517FD interfaces directly with microcontrol-
lers operating at 2.7V to 5.5V. In addition, the
MCP2517FD connects directly to high-speed CAN FD
transceivers. There are no external level shifters
required when connecting VDD of the MCP2517FD 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 MCP2517FD signals interrupts to the microcontrol-
ler using INT, INT0 and INT1. Interrupts need to be
cleared by the microcontroller through SPI.
The CLKO pin provides the clock to the microcontroller.
FIGURE 1-2:
MCP2517FD INTERFACING WITH A 3.3V MICROCONTROLLER
3.3V LDO
5V LDO
VBAT
CANH
CANL
0.1 μF
120
VSS
VDD
RXCAN
TXCAN
CLKO
nCS
SCK
INT
SI
SO
VDD
RA0
VSS
OSC1
SCK
SDI
SDO
INT0
INT0
INT1
OSC2
OSC1
INT1
INT2
0.1 μF
0.1 μF
0.1 μF
22 pF
22 pF
VDD
TXD
RXD
STBY
VSS
VIO
CANH
CANL



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