NXP Semiconductors FS32K144MAT0CMHR

Overview

FS32K144MAT0CMHR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), 112 MHz HSRUN operation, and integrated CSEc security engine. It features dual 12-bit ADCs (32-channel total), three FlexCAN modules (CAN-FD capable), and operates across -40 °C to +125 °C for engine control unit (ECU) applications.

For engineers reviewing the FS32K144MAT0CMHR datasheet, FS32K144MAT0CMHR pinout, FS32K144MAT0CMHR application, or FS32K144MAT0CMHR equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing/security constraints - including mandatory mode switching from HSRUN to RUN (80 MHz) for CSEc or EEPROM operations.

Technical Context

The FS32K144MAT0CMHR implements a dual-core execution environment via Arm Cortex-M4F with FPU and optional M0+ co-processor support in selected configurations; it uses AXBS-Lite crossbar switch for deterministic peripheral arbitration and integrates NXP's system-level MPU for ASIL-B–capable memory protection across DMA, Ethernet, and core initiators.

Its clock architecture includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and RTC_CLKIN (32 kHz), with configurable power modes (HSRUN/RUN/STOP/VLPR/VLPS) and strict operational constraints: CSEc cryptographic operations and FlexNVM writes require RUN mode (80 MHz), not HSRUN.

Key Specifications

Pinout & Package

FS32K144MAT0CMHR is housed in a 144-pin LQFP package (10 × 10 mm, 0.5 mm pitch) with 156 GPIOs available across pin-compatible S32K14x variants; pin assignment follows the S32K144-specific IO Signal Description multiplexing table in the Reference Manual.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with FS32K144MAT0CMHR, FS32K146HAT0MLHT offers headroom in SRAM for future feature expansion while maintaining identical pinout and safety architecture; FS32K144HAT0MLHT trades HSRUN capability for lower system complexity and deterministic 80 MHz operation - ideal for non-performance-critical body electronics.

Availability

FS32K144MAT0CMHR is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, brake-by-wire controllers, and body control modules requiring stable component supply across automotive production lifecycles.

Supply support for FS32K144MAT0CMHR 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 functional safety and automotive-grade reliability.

The S32K1xx family - including FS32K144MAT0CMHR - was designed specifically for automotive electronic control units requiring ASIL-B compliance, real-time performance, and integrated security, targeting powertrain, chassis, and body domains.

FAQ

What is the maximum operating frequency of the FS32K144MAT0CMHR, and under what conditions is it valid?

The FS32K144MAT0CMHR achieves 112 MHz in HSRUN mode, validated across −40 °C to +125 °C ambient temperature. However, this frequency is disabled during CSEc cryptographic operations or FlexNVM write/erase cycles - the device must switch to RUN mode (80 MHz) for those functions, as confirmed in the S32K1xx Data Sheet Rev. 15 Section 1.1 and Figure 3.

Does the FS32K144MAT0CMHR support CAN-FD, and how many instances are available?

Yes, the FS32K144MAT0CMHR integrates three FlexCAN modules, all supporting CAN-FD per ISO 11898-1 with bit-rate switching and payload up to 64 bytes. This is explicitly listed in the "Features comparison" table (Figure 3) and confirmed in Section 1.1 under "Communications interfaces" of the S32K1xx Data Sheet.

What package type and pin count does the FS32K144MAT0CMHR use?

The FS32K144MAT0CMHR uses a 144-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), as specified in the "Package" section (page 2) and Figure 3 of the S32K1xx Data Sheet. It is pin-compatible with other S32K14x devices in the same package variant.

How does the FS32K144MAT0CMHR implement functional safety for ASIL-B compliance?

The FS32K144MAT0CMHR achieves ASIL-B capability through integrated hardware mechanisms: system-level MPU enforcing memory access rights per master (core/DMA/Ethernet), ECC on flash and SRAM, dual watchdogs (WDOG + EWM), CRC module, and lockstep-capable peripherals. These are documented in Sections 1.1 (Safety and security) and 3.1 (Feature comparison) of the S32K1xx Data Sheet.

What is the flash and SRAM memory configuration of the FS32K144MAT0CMHR?

The FS32K144MAT0CMHR includes 2 MB of program flash memory with ECC, 64 KB of FlexNVM (with ECC and EEPROM emulation), 256 KB of SRAM with ECC, and 4 KB of FlexRAM usable as SRAM or EEPROM emulation - all confirmed in Section 1.1 "Memory and memory interfaces" and Figure 3 of the S32K1xx Data Sheet Rev. 15.