NXP Semiconductors FS32R274KBK2MMM

Overview

FS32R274KBK2MMM from NXP Semiconductors is a radar signal processing SoC featuring dual Power Architecture® e200Z7 cores (240 MHz), one safety e200Z4 lock-step core (120 MHz), 2 MB ECC flash, 1.5 MB ECC SRAM, and integrated radar acceleration modules including SPT, CTE, WGM, four 12-bit ΣΔ-ADCs (10 MSps), and one 12-bit DAC (10 MSps). It targets automotive 77/79 GHz radar front-ends requiring ASIL-D compliance and precise chirp timing.

For engineers reviewing the FS32R274KBK2MMM datasheet, FS32R274KBK2MMM pinout, FS32R274KBK2MMM application, or FS32R274KBK2MMM equivalent, key selection considerations include radar-specific timing precision (CTE/WGM), functional safety architecture (FCCU/MEMU/STCU2), dual-core compute throughput, on-chip AFE interface capability (MIPICSI2, ΣΔ-ADC/DAC), and automotive temperature grade (–40°C to +125°C).

Technical Context

The FS32R274KBK2MMM implements a safety-critical radar processing architecture with three CPU cores: one e200Z4 safety monitor core in 2-cycle delayed lockstep with two e200Z7 computation cores. Its radar subsystem integrates Cross Timing Engine (CTE) for sub-nanosecond trigger synchronization and Waveform Generation Module (WGM) for deterministic chirp ramp synthesis - both clocked by a low-jitter PLL dedicated to ΣΔ-ADC/DAC domains.

Memory protection includes per-core MPU (24 entries each), dual SMPUs (16 region descriptors each), and end-to-end ECC across flash, SRAM, crossbar, and peripherals. Functional safety support spans ASIL-D via FCCU fault handling, MEMU memory error management, safe eDMA, STCU2 self-test, and EIM error injection - all validated per ISO 26262 SEooC requirements.

Key Specifications

Pinout & Package

FS32R274KBK2MMM is housed in a 257-pin MAPBGA package (15 mm × 15 mm, 0.8 mm pitch) with thermal pad. Pin functions are defined per the official NXP S32R274 pinout documentation (Rev. 4, Section 19.1), supporting high-density routing for radar sensor applications with dedicated power/ground segmentation and controlled impedance I/O banks.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar radar signal processing applications.

Compared with S32R274KBK2MMM, the S32R294KVK2MMM trades ASIL-D readiness and 240 MHz compute for lower cost and thermal margin, while the MPC5775K offers higher flash but lacks radar-specific timing engines and fails to meet current ASIL-D system requirements.

Availability

FS32R274KBK2MMM is available at Aetrix Electronics and suitable for automotive radar front-ends, ADAS sensor fusion hubs, high-resolution imaging radar systems, and vehicle gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for FS32R274KBK2MMM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in radar processing and functional safety.

The S32R274 family is designed specifically for automotive radar signal processing, integrating hardware accelerators (SPT, CTE, WGM), ASIL-D safety infrastructure, and high-speed interfaces (MIPICSI2, FlexCAN FD) to enable next-generation 77/79 GHz radar systems.

FAQ

What is the maximum operating frequency of the FS32R274KBK2MMM's compute cores?

The FS32R274KBK2MMM features two e200Z7 computation cores rated at 240 MHz and one e200Z4 safety core rated at 120 MHz. These frequencies are guaranteed under full-performance operating conditions (–40°C to +125°C ambient, 1.25 V core supply, 3.3 V I/O supply) as specified in Table 7 of the S32R274 datasheet Rev. 4. The FS32R274KBK2MMM's dual PLL architecture ensures stable clock delivery to both compute and safety domains without frequency derating.

Does the FS32R274KBK2MMM support CAN FD, and which modules implement it?

Yes, the FS32R274KBK2MMM supports CAN FD on two of its three FlexCAN modules, as explicitly stated in Section 1.2 ("Feature list") and Table 1 ("Family comparison") of the S32R274 datasheet Rev. 4. The third FlexCAN module operates in classical CAN mode only. CAN FD capability enables higher data rates (up to 5 Mbps) and larger payload sizes (up to 64 bytes) for radar object lists and diagnostic messages in the FS32R274KBK2MMM-based systems.

What radar-specific hardware accelerators are integrated into the FS32R274KBK2MMM?

The FS32R274KBK2MMM integrates three dedicated radar accelerators: the Signal Processing Toolbox (SPT) for FFT/CFAR/beamforming, the Cross Timing Engine (CTE) for sub-nanosecond synchronized triggering, and the Waveform Generation Module (WGM) for programmable chirp ramp synthesis. These modules are documented in Sections 1.2 and 14 of the S32R274 datasheet Rev. 4 and are central to the FS32R274KBK2MMM's role in high-precision automotive radar systems.

What is the temperature grade of the FS32R274KBK2MMM, and how is it indicated in the part number?

The FS32R274KBK2MMM is rated for –40°C to +125°C ambient operation (TA), corresponding to the "M" suffix in the temperature field of its part number (Table 5, "Temperature values", S32R274 datasheet Rev. 4). This grade is validated per automotive AEC-Q100 stress testing and supports full functionality at junction temperatures up to +150°C, making the FS32R274KBK2MMM suitable for under-hood radar ECU deployments.

How does the FS32R274KBK2MMM achieve ASIL-D compliance?

The FS32R274KBK2MMM achieves ASIL-D compliance through a comprehensive safety architecture: lock-step e200Z4/e200Z7 cores with 2-cycle delay, end-to-end ECC on all memories and buses, FCCU for fault collection/handling, MEMU for memory error correction, STCU2 for runtime BIST, EIM for fault injection testing, and dual-clock monitoring (CMU). These elements are certified per ISO 26262 SEooC requirements and documented in Section 1.2 and Table 1 of the S32R274 datasheet Rev. 4.