KCU GEN2 Micro: Lite Vehicle Control Unit Specifications
KCU GEN2 Micro is a KopherBit second-generation streamlined automotive control unit. It adopts Infineon TC387QP quad-core 300 MHz processor and provides 4 channels of CAN FD, 4 analog inputs, 4 low-order drive outputs and H-bridge. The motherboard size is 70×86×33 mm, which is suitable for subsystem control applications with limited space.
Summary
KCU GEN2 Micro is a streamlined version of the KopherBit second generation automotive control unit.Using Infineon TC387QP (quad-core 300 MHz), providing 10 MB Flash / 1.5 MB RAM, 4 channels of full CAN FD communication, 4 analog inputs, 4 digital inputs, 2 frequency inputs, the output end has 4 PWM low drivers and 1 H-bridge or 2 PWM high drivers, PCB size 70×86×33 mm, suitable for subsystem ECU applications where space is limited but still requires the high bandwidth of CAN FD.
Technical Role
KCU GEN2 Micro is a compact hardware option under the KCU GEN2 series.When the application requires a lower number of I/Os but still requires: CAN FD 4-way, AUTOSAR Classic software ecology, UDS programming, XCP calibration, and wide voltage input, KCU GEN2 Micro can be used as a node ECU, a smart subsystem controller, or a satellite controller distributed downward from the KCU GEN2 master.
Compared with KCU GEN2 (Phase B): the CPU and software are fully compatible, and the Flash/RAM size is the same. The difference mainly lies in the number of external interfaces and the size of the mechanism.
Architecture
| Mods | Characters |
|---|---|
| Main MCU | Infineon TC387QP, 4×300 MHz multi-core Lock-Step architecture, executes application layer SWC, AUTOSAR RTE and security partitioning. |
| Power Domain | 9–36 V wide voltage input, provides 2 sets of 5 V sensor power (50 mA/set). |
| Analog Inputs | 4 channels, connected to vehicle analog sensors. |
| Digital Inputs | 4 channels (MSDI multiplexed digital inputs). |
| Frequency Inputs | 2 channels, measuring frequency/pulse width signals (such as rotation speed, flow meter). |
| Low-Side Drivers | 4 channels, all support PWM. |
| High-Side Drivers / H-bridge | 1 H-bridge or 2 PWM high-side drivers. |
| CAN | 4-channel CAN 2.0B / CAN FD, maximum baud rate 2 Mbit/s; CAN A has wake-up capability. |
| Connector | Molex 477320361 36-pin. |
Key Capabilities
- 4-core 300 MHz Infineon TC387QP with hardware Lock-Step and HSM security features (Functional Safety and Security Basics).
- Full 4-channel CAN FD (up to 2.0 Mbit/s), CAN A has a wake-up function to wake up the ECU from standby.
- Wide voltage 9–36 V, 2 sets of 5 V 50 mA sensor power outputs.
- Compact PCB 70×86×33 mm for easy integration into space-constrained bodies, subsystems or external modules.
- Share BSW, configuration tools, Bootloader, and diagnostic processes with KCU GEN2 to reduce cross-product line development costs.
- UDS Bootloader and XCP calibration support, compatible with KopherBoot and standard measurement tool chain.
Engineering Inputs Required
| Client provides input | Purpose |
|---|---|
| Signal matrix (DBC / ARXML) | Configure 4-channel CAN/CAN FD communication matrix and PDU. |
| I/O mapping table | Map AI / DI / FI / LSD / HSD / H-bridge channels to actual sensors and actuators. |
| Wake-up event definition | Specify the PDU or NM signal corresponding to CAN A wake-up. |
| Security Partitioning and Monitoring Strategies | Configure TC387QP Lock-Step core and HSM usage. |
| Bootloader process requirements | UDS Security Access, Flash memory partition planning. |
How KopherBit Supports This
- Hardware: KCU GEN2 Micro mass production level hardware, which can be customized according to the customer’s BOM.
- AUTOSAR BSW: KopherSAR Classic provides 4×CAN FD, LIN (if available), UDS, DEM, DCM, NM, COM, PduR, RTE and other modules.
- Configuration: KopherConfig performs SWC and BSW configuration; Kopher Network Designer handles the communication matrix.
- Bootloader: KopherBoot UDS-based Bootloader.
- Diagnosis: KopherUDS The host computer supports the ECU programming and diagnosis process.
FAQ
KCU GEN2 Micro and KCU GEN2 (Phase B) Main differences?
The sizes of CPU, Flash and RAM are the same (TC387QP / 10 MB Flash / 1.5 MB RAM).The difference is in the number of I/Os: GEN2 Micro is 4 AI / 4 DI / 2 FI / 4 LSD / 1 H-bridge or 2 HSD, which is much less than GEN2 (Phase B)’s 20 AI / 22 DI / 4 FI / 28 LSD / 6 HSD; the connector is 36-pin Molex instead of 112-pin Molex.Micro is suitable for node/distributed ECUs; Phase B is suitable for central VCUs.
Do all 4 CAN channels support CAN FD?
yes.All 4 channels support CAN 2.0B and CAN FD (up to 2.0 Mbit/s).CAN A additionally has wake-up capabilities.
KCU Does the GEN2 Micro support Ethernet?
no.Ethernet is only available in KCU GEN2 (Phase B) major version.Micro is limited to CAN/CAN FD communication.
Can H-bridge and high-level driver exist at the same time?
no.The output terminal can be configured as “1 H-bridge” or “2 PWM high-level drivers”, which will be confirmed in the design stage.
KCU Is the GEN2 Micro compliant with automotive regulations?
Operating temperature -40 ℃ ~ +85 ℃; protection level IP6K5; compliant with ISO 16750, ISO 7637, CISPR 25 (the specifications page is marked TBD, and the official mass production specifications are subject to the Release version).
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