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19

IBASE Technology Inc.

4.2.13. CAN Bus

CAN Bus Signals

Pin

Signal Name

I/O

Type

Power Rail

Description

P143

CAN1_TX

O

CMOS

3.3V

CAN1 Transmit output

P144

CAN1_RX

I

CMOS

3.3V

CAN1 Receive input

P145

CAN2_TX

O

CMOS

3.3V

CAN2 Transmit output

P146

CAN2_RX

I

CMOS

3.3V

CAN2 Receive input

Reference Schematic

GND_ISO_B

+5V_ISO_B

CAN_DL_B

CAN_DH_B

U5

ADM3053BRWZ-REEL7

GND11

1

NC

2

GND12

3

RxD

4

TxD

5

VIO

6

GND13

7

VCC

8

GND14

9

GND15

10

GND21

11

VISOOUT

12

GND22

13

VREF

14

CANL

15

GND23

16

CANH

17

RS

18

VISOIN

19

GND24

20

R28 10K/4

CAN BUS2

RS4

Short PAD8

Isolation >5mm

CAN_DH_B

C45 10UF/16V/6

GND_ISO_B

R29

120/6.X

C43 10UF/16V/6

C44 0.1UF/25V/4

GND_SHIELD2

C40 10UF/16V/6

C39 0.1UF/25V/4

C46 0.1UF/25V/4

GND_ISO_B

+5V_ISO_B

+5V_VCC

+3.3V_VCC

CAN_DL_B

C50 10UF/16V/6

C49 0.1UF/25V/4

GND_ISO_B

CAN2_RX13

CAN2_TX13

GND_ISO_A

+5V_ISO_A

CAN_DL_A

CAN_DH_A

U4

ADM3053BRWZ-REEL7

GND11

1

NC

2

GND12

3

RxD

4

TxD

5

VIO

6

GND13

7

VCC

8

GND14

9

GND15

10

GND21

11

VISOOUT

12

GND22

13

VREF

14

CANL

15

GND23

16

CANH

17

RS

18

VISOIN

19

GND24

20

R26 10K/4

Isolation >5mm

CAN BUS 1

RS3

Short PAD8

CAN_DH_A

C35 10UF/16V/6

R27

120/6/X

GND_ISO_A

C33 10UF/16V/6

C34 0.1UF/25V/4

C32 10UF/16V/6

C31 0.1UF/25V/4

GND_SHIELD1

C36 0.1UF/25V/4

GND_ISO_A

+5V_ISO_A

+5V_VCC

+3.3V_VCC

C38 10UF/16V/6

CAN_DL_A

C37 0.1UF/25V/4

CAN1_TX13

GND_ISO_A

CAN1_RX13

J2

E-CALL_0110-2620040

1

1

2

2

3

3

4

4

J4

E-CALL_0110-2620040

1

1

2

2

3

3

4

4

GND_ISO_B

GND_SHIELD2

CAN_DH_B

CAN_DL_B

GND_ISO_A

GND_SHIELD1

CAN_DH_A

CAN_DL_A

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