1

1

2

2

3

3

4

4

D

D

C

C

B

B

A

A

Title

CAN Expand Module Lite

Date:

*

FileName:

CAN.SchDoc

Draw By:

Sheet of

*

*

*

ABit

Your MCU Partner

Revision:

*

*

2013-6-4

ModifiedDate:

CheckedBy:

*

TXCAN

1

RXCAN

2

CLKOUT/SOF

3

TX0RTS

4

TX1RTS

5

TX2RTS

7

OSC2

8

OSC1

9

VSS

10

RX1BF

11

RX0BF

12

INT

13

SCK

14

SI

16

SO

17

CS

18

RESET

19

VDD

20

NC

6

NC

15

U1

MCP2515-I/ST

TXD

1

VSS

2

VDD

3

RXD

4

VREF

5

CANL

6

CANH

7

RS

8

U2

TJA1050-I/SN

1

2

Y1
20MHz

15pF

C1

15pF

C2

GND

D1

R1

270

+5V

D2

R2
270

+5V

+5V

0.1uF

C3

GND

GND

RXCAN

TXCAN

GND

+5V

0.1uF

C4

GND

GND

R3
120R

1
2

J2

1

2

3

4

5

6

7

8

9

10

11 12
13 14

J2

nCS
SCK
SI
SO

nRTS0
nRTS1
nRTS2

nRXB0
nRXB1

SOF

nINT

nCS

SCK

SI

SO

nRTS1

nRTS2

nRTS0

nRXB0

nRXB1

SOF

nINT

nRESET

nRESET

+5V

GND

2

1

3

U3

PESD1CAN

GND