SPSB081C5 datasheet(40/135 Pages) STMICROELECTRONICS

40 / 135 page

3.22

Functional safety management

Even if not designed as safety HW element, the device contains some features that can be used to support

application that needs to fulfill functional safety requirements. Analysis of the IC’s capability to reach the required

safety level, should be made at system level under user responsibility.

The following device safety requirements have been considered for a typical application:

Table 12. Safety requirement

Description

TSR1

SPSB081 shall guarantee the correct operation of the voltage regulator V1 as specified in

datasheet.

TSR2

SPSB081 shall guarantee the correct operation of the voltage regulator V2 as specified in

datasheet.

TSR3

SPSB081 shall assert the NRESET signal in case of WD failure.

TSR4

The SPI interface embedded in SPSB081 shall provide to microcontroller device diagnostic info.

TSR5

SPSB081 shall guarantee the correct functionality of HSD(s) as for the datasheet specification.

TSR6

SPSB081 shall ensure LIN physical layer operation as defined in datasheet.

TSR7

SPSB081 shall ensure CAN FD physical layer operation as defined in datasheet.

More details about functional safety can be found in the device safety manual, provided on customer request.

SPSB081

Functional safety management

DS14048 - Rev 1

page 40/135

SPSB081C5 데이터시트(PDF) 40 Page - STMicroelectronics