Safety system basis chip integrates power management, CAN FD communication, system monitoring and safety functions for automotive electronic control units. The FS2300 base variants use an HVLDO V1 regulator with HVLDO2 and HVLDO3 auxiliary regulators and include CAN FD while excluding LIN and long-duration timer functions. Device control is available through a 32-bit SPI interface or I2C interface with CRC. The family is specified for QFN48EP packaging with wettable flanks and a 7 mm by 7 mm exposed-pad body for thermal management.
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| Product family | FS23 |
| Device type | Safety system basis chip |
| V1 regulator type | HVLDO |
| V1 output voltage options | 3.3 or 5.5V |
| HVLDO1 current capability | 100 internal PMOS; 250 with external PNPmA |
| HVLDO2 output voltage options | 3.3 or 5.0V |
| HVLDO2 current capability | 100mA |
| HVLDO3 output voltage options | 3.3 or 5.0V |
| HVLDO3 current capability | 150mA |
| CAN FD channels | 1 |
| CAN FD data rate | 5Mbps |
| LIN support | No for FS2300 base variants |
| Long-duration timer | No for FS2300 base variants |
| Control interface | 32-bit SPI or I2C with CRC |
| High-voltage I/O count | 2 |
| Low-voltage I/O count | Up to 4 |
| Wake-up inputs | 2, 40 V capable |
| High-side drivers | 4 configurable outputs, 150 mA drive capability |
| Operating temperature range | -40 to 125°C |
| Package | 48-pin QFN with exposed pad, wettable flanks, 7 x 7 x 0.85 mm, 0.5 mm pitch |
These are design resources that include the NXP FS2300
Quick start guide for NXP FS23 fail-safe SBCs, covering initialization, SPI/I2C communication, watchdog configuration, and start-up sequences for automotive ECUs.
