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SPSB081 Datasheet(PDF) 6 Page - STMicroelectronics |
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SPSB081 Datasheet(HTML) 6 Page - STMicroelectronics |
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6 / 137 page  Table 1. Pin function Pin SPSB081x Pin SPSB081Cx Pin name Description I/O type 1 1 WU1 Wake-up inputs 1: input pin for static or cyclic monitoring of external contacts I 2 2 DIR/WU2 DIR → direct HS drive WU2 → input pin for static or cyclic monitoring of external contacts I 3 3 V2 Voltage regulator 2 or tracker 2 output: 5 V or 3.3 V supply for external loads or CAN FD transceiver V2 pin is protected against reverse supply O 4 4 OUT4 High-side-driver output to drive LEDs, sensors or to supply contacts O 5 5 OUT3 High-side-driver output to drive LEDs, sensors or to supply contacts O 6 6 OUT2 High-side-driver output to drive LEDs, sensors or to supply contacts O 7 7 OUT1 High-side-driver output to drive LEDs, sensors or to supply contacts O 8 8 VS Power supply voltage for power stage outputs OUT1, OUT2, OUT3, and OUT4 (external reverse battery protection required). For this input, a ceramic capacitor as close as possible to GND is recommended P 9 9 NC Not connected - 10 10 Debug Debug input to deactivate the window watchdog (high active) I 11 11 SGND Signal ground P 12 12 TxD_C CAN transmit data input I 13 - TxD_L LIN transmit data input I 14 14 CM Current monitor output: depending on the selected multiplexer bits of the control register this output sources an image of the instant current through the corresponding high side driver with a fixed ratio O 15 15 DIAGN Logical error indication output. Active low O 16 16 NINT indicates device errors, warning, and local/remote wake-up events O 17 17 RxD_C CAN receive data output (push pull output stages) O 18 - RxD_L RxDL → LIN receive data output (only for SPSB0815 and SPSB0813) O 19 19 CLK SPI: serial clock input I 20 20 DO SPI: serial data output (push pull output stage) O 21 21 DI SPI: serial data input I 22 22 CSN SPI: chip select not input I 23 23 NRESET NReset output to microcontroller; internal pull-up of typical 25 kΩ (active low output stage) O 24 24 V1 Voltage regulator 1 output: 5 V or 3.3 V supply, for example, microcontroller, CAN FD transceiver O 25 25 NC Not connected - 26 26 VSREG Power supply voltage to feed the internal voltage regulators; all internal regulated voltages for analog and digital functionality; LIN transceiver; CAN transceiver and the wake-up features (external reverse battery protection required/diode). For this input, a ceramic capacitor as close as possible to GND and an electrolytic backup capacitor are recommended P 27 27 NC Not connected - SPSB081 Pin description DS14048 - Rev 3 page 6/137 |
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