The FS65 family of automotive system basis chips (SBCs) provides power management, communication interfaces, system control, and functional safety features for automotive electronic control units (ECUs).
The FS65 integrates DC-DC switching regulators, linear regulators, CAN FD and LIN transceivers, and ultra-low-power modes to optimize energy consumption. Developed for ISO 26262 applications up to ASIL B and ASIL D, the FS65 includes voltage monitoring, fail-safe mechanisms, watchdog functionality, and diagnostic features to support safety-oriented system architectures.
The device supports SPI communication for control and diagnostics and is qualified for operation up to 150 °C ambient temperature in AEC-Q100 Grade 0 applications.
| Part Number | FS1B [1] | LDT [2] | CAN | LIN | Preferred superset PN w/ Linear VCORE | Preferred superset PN w/ DC-DC VCORE |
|---|---|---|---|---|---|---|
| FS45/FS65x5NAE | No | No | No | No | FS4507L or FS4508C | FS6527L or FS6528C |
| FS45/FS65x5CAE | No | No | Yes | No | FS4507L or FS4508C | FS6527L or FS6528C |
| FS45/FS65x5KAE | No | No | No | Yes | FS4507L | FS6527L |
| FS45/FS65x5LAE | No | No | Yes | Yes | FS4507L | FS6527L |
| FS45/FS65x6NAE | Yes | No | No | No | FS4508C | FS6528C |
| FS45/FS65x6CAE | Yes | No | Yes | No | FS4508C | FS6528C |
| FS45/FS65x7NAE | No | Yes | No | No | FS4507L or FS4508C | FS6527L or FS6528C |
| FS45/FS65x7CAE | No | Yes | Yes | No | FS4507L or FS4508C | FS6527L or FS6528C |
| FS45/FS65x7KAE | No | Yes | No | Yes | FS4507L | FS6527L |
| FS45/FS65x7LAE | No | Yes | Yes | Yes | FS4507L | FS6527L |
| FS45/FS65x8NAE | Yes | Yes | No | No | FS4508C | FS6528C |
| FS45/FS65x8CAE | Yes | Yes | Yes | No | FS4508C | FS6528C |
| Part Number | FS1B [1] | LDT [2] | VKAM On | CAN | LIN | Preferred superset PN w/ Linear VCORE | Preferred superset PN w/DC-DC VCORE |
|---|---|---|---|---|---|---|---|
| FS45/FS65x0NAE | No | No | by SPI | No | No | MC33FS4502LAE | MC33FS6522LAE |
| FS45/FS65x0CAE | No | No | by SPI | Yes | No | ||
| FS45/FS65xOLAE | No | No | by SPI | Yes | Yes | ||
| FS45/FS65x1NAE | Yes | No | by SPI | No | No | MC33FS4503CAE | MC33FS6523CAE |
| FS45/FS65x1CAE | Yes | No | by SPI | Yes | No | ||
| FS45/FS65x2NAE | No | Yes | by SPI | No | No | MC33FS4502LAE | MC33FS6522LAE |
| FS45/FS65x2CAE | No | Yes | by SPI | Yes | No | ||
| FS45/FS65x2LAE | No | Yes | by SPI | Yes | Yes | ||
| FS45/FS65x3NAE | Yes | Yes | by SPI | No | No | MC33FS4503CAE | MC33FS6523CAE |
| FS45/FS65x3CAE | Yes | Yes | by SPI | Yes | No | ||
| FS65x4LAE | No | Yes | by default | Yes | Yes | - | MC33FS6524LAE |
When it comes to functional safety, NXP stands for quality, reliability, and ease of integration. Our SafeAssure program simplifies system-level safety implementation in accordance with the applicable safety standards.
This platform facilitates the design of safe power management systems thanks to a portfolio of configurable and linkable devices. It simplifies complex power supply subsystems into a single smart solution.
Participating products are available for a minimum of 10 years. Designated participating products developed for the automotive, telecom and medical segments are available for a minimum of 15 years.
MPC5775B and MPC5775E Microcontrollers for Battery Management Systems (BMS) and Inverter Applications
Grade 1 and Grade 0 Safety Power System Basis Chip with CAN Flexible Data Transceiver
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