SFFS138 Functional safety information

SFFS138 December 2021 TCAN1164-Q1

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5.4 TCAN1164-Q1 Component Overview

The TCAN1164-Q1 is a high speed Controller Area Network (CAN) system basis chip (SBC) that meets the physical layer requirements of the ISO 11898-2:2016 high speed CAN specification. The transceiver supports both classical CAN and CAN FD networks up to 8 megabits per second (Mbps) (TCAN1164-Q1) and up to 5 Mbps (TCAN1164T-Q1).

The TCAN1164-Q1 supports a wide input supply range and integrates a 5-V LDO output. The 5-V LDO output (V_CCOUT) supplies the CAN transceiver voltage internally as well as additional current externally.

Figure 5-1 TCAN1164-Q1 and TCAN1164T-Q1 Block Diagram

Figure 5-2 Potential Failure Points

Table 5-7 Potential Failure Points and Safety Mechanisms

Potential Failure Point	Potential Failure Point Description	Section
1	CAN communication	See Section 5.3.1.1, Section 5.3.1.2, Section 5.3.1.3, Section 5.3.2.1
2	Supply voltage rail monitoring	See Section 5.3.2.1, Section 5.3.2.2, Section 5.3.2.3, Section 5.3.2.4
3	SPI/Processor communication	See Section 5.3.1.4, Section 5.3.3.1, Section 5.3.3.2, Section 5.3.3.3, Section 5.3.3.4, Section 5.3.4.1
4	EEPROM	See Section 5.3.4.1
5	Floating pins	See Section 5.3.5.1, Section 5.3.5.2, Section 5.3.5.3, Section 5.3.5.4