FS32K144UIT0VLHT - S32K144 112MHz 512KB MCU, 64-LQFP | NXP
MPN: FS32K144UIT0VLHT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.86 | $12.86 |
| 10 | $11.85 | $118.50 |
| 100 | $10.45 | $1,045.00 |
| 500 | $9.12 | $4,560.00 |
| 1,000 | $7.95 | $7,950.00 |
| 3,000 | $6.8 | $20,400.00 |
FS32K144UIT0VLHT Overview
An automotive microcontroller (MCU) is a ruggedized microprocessor designed to operate across the wider temperature, EMI, and voltage transients of vehicle electrical environments. It combines a CPU core with tightly-integrated Flash, RAM, timers, communication peripherals, and functional-safety features. The S32K1 family sits within NXP's broader automotive portfolio alongside the S32K3 and S32Z/E platforms, all targeting ASIL-B/D-capable body, chassis, and electrification domains.
Key features include hardware cryptographic services (CSEc implementing the SHE functional specification), up to two CAN-FD controllers, one SPI/SCI/UART cluster, a 12-bit 1 Msps ADC with up to 32 channels, and a programmable FlexIO peripheral emulating additional UART, SPI, I2C, or I2S interfaces. The CSEc engine handles AES-128, secure key storage, and SHE-compliant boot verification for tamper-resistant firmware updates.
Architecturally, the device pairs the Cortex-M4F core (single-precision FPU, DSP extensions) with a low-power Cortex-M0+ core for background housekeeping. Voltage scaling down to 2.7 V at reduced frequency lets the part enter low-power STOP/VLPS modes while retaining RAM and selected peripherals, enabling standby currents in the low-microampere region and ISO 17981 Part 7 standby compliance for body ECUs.
Typical applications include automotive body domain controllers, HVAC modules, seat-control ECUs, LED lighting via ISELED, gateway modules bridging CAN-FD with Ethernet, and industrial PLCs requiring functional safety up to ASIL-B. Designers choose this part when 512 KB Flash and Ethernet connectivity are needed without stepping up to the larger 100-pin S32K144 variants.
Drop-in alternatives for FS32K144UIT0VLHT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with FS32K144UIT0VLHT (same form factor and footprint) — differing in ADC, Functional Safety, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
FS32K144UAT0VLHT
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →FS32K144UFT0VLHT
✅ Drop-In📋 Reference alternative (not in catalog)
FS32K144HFT0MLLT
✅ Drop-In📋 Reference alternative (not in catalog)
FS32K144ULT0VLLR
✅ Drop-In📋 Reference alternative (not in catalog)
FS32K146UAT0VLHT
✅ Drop-In📋 Reference alternative (not in catalog)
FS32K144UIT0VLHT Maximum Ratings & Electrical Characteristics
| Core Architecture | Arm Cortex-M4F with FPU and DSP extensions |
| Maximum Clock Frequency | 112 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +105C (automotive Grade 1) |
| Ethernet | 1x 10/100 Mbps with IEEE 1588 |
| CAN-FD Controllers | 2 |
| Synchronous Audio Interface (SAI) | 2 modules |
| FlexIO | Yes (programmable peripheral) |
| ISELED Lighting Support | Yes |
| Cryptographic Engine | CSEc (SHE-compliant) |
| ADC | 12-bit, up to 1 Msps, multiple channels |
| Functional Safety | ISO 26262 ASIL-B capable |
| AEC-Q100 Qualification | Yes (automotive Grade 1) |
| MSL Level | 3 |
| RoHS Status | Compliant |
FS32K144UIT0VLHT Pin Configuration
| Pin 1 | PTA0 — GPIO / SWDIO (debug data) |
| Pin 2 | PTA1 — GPIO / SWCLK (debug clock) |
| Pin 3 | PTA3 — GPIO / RESET_b |
| Pin 4 | VDD_HV_A — High-voltage supply domain A |
| Pin 5 | VSS — Ground |
| Pin 6 | PTA4 — GPIO |
| Pin 7 | PTA5 — GPIO |
| Pin 8 | PTA6 — GPIO |
| Pin 9 | PTA7 — GPIO |
| Pin 10 | PTB0 — GPIO |
| Pin 11 | PTB1 — GPIO |
| Pin 12 | PTB2 — GPIO |
| Pin 13 | PTB3 — GPIO |
| Pin 14 | VDD_HV_B — High-voltage supply domain B |
| Pin 15 | VSS — Ground |
| Pin 16 | PTB4 — GPIO |
| Pin 17 | PTB5 — GPIO |
| Pin 18 | PTB6 — GPIO |
| Pin 19 | PTB7 — GPIO |
| Pin 20 | PTC0 — GPIO |
| Pin 21 | PTC1 — GPIO |
| Pin 22 | PTC2 — GPIO |
| Pin 23 | PTC3 — GPIO |
| Pin 24 | PTC4 — GPIO |
| Pin 25 | PTC5 — GPIO |
| Pin 26 | PTC6 — GPIO |
| Pin 27 | PTC7 — GPIO |
| Pin 28 | PTD0 — GPIO |
| Pin 29 | PTD1 — GPIO |
| Pin 30 | PTD2 — GPIO |
| Pin 31 | PTD3 — GPIO |
| Pin 32 | PTD4 — GPIO |
| Pin 33 | PTD5 — GPIO |
| Pin 34 | PTD6 — GPIO |
| Pin 35 | PTD7 — GPIO |
| Pin 36 | PTE0 — GPIO |
| Pin 37 | PTE1 — GPIO |
| Pin 38 | PTE2 — GPIO |
| Pin 39 | PTE3 — GPIO |
| Pin 40 | PTE4 — GPIO |
| Pin 41 | PTE5 — GPIO |
| Pin 42 | PTE6 — GPIO |
| Pin 43 | PTE7 — GPIO |
| Pin 44 | PTF0 — GPIO |
| Pin 45 | PTF1 — GPIO |
| Pin 46 | PTF2 — GPIO |
| Pin 47 | PTF3 — GPIO |
| Pin 48 | PTF4 — GPIO |
| Pin 49 | PTF5 — GPIO |
| Pin 50 | PTF6 — GPIO |
| Pin 51 | PTF7 — GPIO |
| Pin 52 | VDD — Core voltage supply (1.2 V regulated) |
| Pin 53 | VSS — Ground |
| Pin 54 | VREFH — ADC voltage reference high |
| Pin 55 | VREFL — ADC voltage reference low |
| Pin 56 | VDDA — Analog supply for ADC |
| Pin 57 | VSSA — Analog ground |
| Pin 58 | PTE16 — GPIO / CAN0_RX |
| Pin 59 | PTE17 — GPIO / CAN0_TX |
| Pin 60 | PTE18 — GPIO / CAN1_RX |
| Pin 61 | PTE19 — GPIO / CAN1_TX |
| Pin 62 | XTAL32K — 32 kHz crystal oscillator |
| Pin 63 | EXTAL32K — 32 kHz crystal oscillator input |
| Pin 64 | VDD_HV — High-voltage supply main |
Typical Applications
FS32K144UIT0VLHT is suitable for 7 applications: Automotive Body Domain Controller, ISELED LED Lighting Module, Automotive Gateway with Ethernet and CAN-FD, HVAC Climate Control Module, Industrial Functional-Safe Controller (ASIL-B), Battery Management Slave Controller, Audio Infotainment Sub-Processor.
Automotive Body Domain Controller
The FS32K144UIT0VLHT's 512 KB Flash and dual CAN-FD controllers make it an ideal body domain controller for consolidating body electronics. With the on-chip Ethernet MAC and CSEc cryptographic engine, the MCU can securely aggregate LIN and CAN-FD sensor traffic from seat, mirror, and door modules while relaying diagnostic data to a central gateway. According to the S32K1 datasheet, the Cortex-M4F core delivers 1.25 DMIPS/MHz at 112 MHz, sufficient for sensor-fusion loops under 10 ms. The 64-LQFP footprint simplifies PCB layout in space-constrained body controllers, while the 2.7-5.5 V supply tolerates cranking transients on 12 V vehicle buses.
Recommended
ISELED LED Lighting Module
The FS32K144UIT0VLHT includes dedicated ISELED peripheral hardware that drives up to 4074 daisy-chained digital LEDs with single-wire communication and per-pixel diagnostics. Per the NXP S32K1 reference manual, the ISELED peripheral offloads LED timing from the core, freeing Cortex-M4F cycles for color-mixing algorithms and over-temperature compensation. Two on-chip SAI modules can drive auxiliary analog audio or run a secondary I2S lighting channel, while FlexIO can emulate additional I2C buses for sensor expansion. The 512 KB Flash fits ISELED firmware plus calibration tables for full interior lighting strips.
Recommended
Automotive Gateway with Ethernet and CAN-FD
The FS32K144UIT0VLHT functions as a compact gateway between CAN-FD chassis networks and 100 Mbps automotive Ethernet. The integrated IEEE 1588 hardware timestamping ensures sub-microsecond synchronization required for time-triggered Ethernet (TTE) and AVB/TSN streams per the S32K1 datasheet. Two CAN-FD controllers provide redundant bus access to powertrain or ADAS sensor clusters, while CSEc SHE-compliant cryptography authenticates firmware updates over the network. This makes the part a cost-effective solution for zonal architectures where multiple CAN-FD segments must converge onto a single Ethernet uplink.
Recommended
HVAC Climate Control Module
Climate-control ECUs benefit from the FS32K144UIT0VLHT's FlexIO peripheral emulating additional UART or SPI buses for sensor expansion (NTC temperature, humidity, PM2.5) without external logic. The 12-bit 1 Msps ADC with multiple channels samples multiple thermistor and pressure-sensor inputs simultaneously, while the Cortex-M4F DSP extensions execute PID control loops at sub-millisecond rates. Per the NXP datasheet, low-power STOP/VLPS modes retain 64 KB SRAM down to microampere standby currents, which is essential for EVs where parasitic draw is regulated by ISO 17987 Part 7. The 64-LQFP package supports compact HVAC housing.
Recommended
Industrial Functional-Safe Controller (ASIL-B)
Industrial PLCs requiring ISO 26262 ASIL-B functional safety can leverage the FS32K144UIT0VLHT's safety features per the S32K1 safety manual: ECC on Flash and SRAM, watchdog timer, voltage and clock monitors, and lockstep MPU configuration options. The wide 2.7-5.5 V supply accommodates industrial 24 V bus rails with on-board regulation. Two CAN-FD controllers enable redundant communication channels per IEC 61784, while FlexIO emulates RS-485 transceivers via UART for legacy fieldbus. ECC-protected 512 KB Flash stores both application logic and FMEA libraries for safety-critical machinery.
Recommended
Battery Management Slave Controller
The FS32K144UIT0VLHT serves as a battery-cell-monitoring slave in distributed BMS architectures, communicating with a master controller via CAN-FD or SPI. The 12-bit ADC with up to 32 channels monitors cell voltages and temperatures across 12-16 series cells, while the Cortex-M4F DSP extensions compute cell-balancing algorithms in real time. Per the S32K1 datasheet, the AES-128 CSEc engine authenticates cell-module firmware and protects battery pack IP. The 64-LQFP package's small 10x10 mm footprint fits inside each cell-monitoring module, while the 2.7-5.5 V supply directly powers from the cell stack.
Recommended
Audio Infotainment Sub-Processor
The two SAI modules on the FS32K144UIT0VLHT enable connection to external audio codecs for infotainment sub-systems such as active noise cancellation (ANC) and in-cabin communication. The ISELED peripheral can also drive ambient lighting strips synchronized with audio playback. Per the NXP datasheet, the Cortex-M4F DSP extensions accelerate audio processing at 112 MHz, and the 64 KB SRAM buffers multi-channel audio streams. The Ethernet MAC enables IP-based audio distribution over automotive Ethernet (AVB/TSN), making the part suitable as a cost-effective sub-processor complementing a main infotainment SoC.
Recommended
Recommended Products Summary
Engineering reference data for FS32K144UIT0VLHT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | FS32K144UAT0VLHT | FS32K144UFT0VLHT | FS32K144ULT0VLLR | FS32K146UAT0VLHT |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP - same | 64-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Max Clock | Cortex-M4F / 112 MHz | Cortex-M4F / 112 MHz | Cortex-M4F / 112 MHz | Cortex-M4F / 112 MHz | Cortex-M4F / 112 MHz |
| Flash / SRAM | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB | 512 KB / 64 KB | 1 MB / 128 KB |
| AEC-Q100 Grade | Industrial (U suffix) | Automotive Grade 1 | Automotive Grade 1 | Industrial | Automotive Grade 1 |
| Ethernet | 10/100 Mbps + IEEE 1588 | 10/100 Mbps + IEEE 1588 | 10/100 Mbps + IEEE 1588 | 10/100 Mbps + IEEE 1588 | 10/100 Mbps + IEEE 1588 |
| CAN-FD | 2 | 2 | 2 | 2 | 3 |
| ISELED Support | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +105C | -40C to +125C (Grade 1) | -40C to +125C (Grade 1) | -40C to +105C | -40C to +125C (Grade 1) |
Key Differentiators
- Integrated ISELED lighting peripheral (vs FS32K144UAT0VLHT)
- On-chip Ethernet MAC with IEEE 1588 timestamping (vs FS32K146UAT0VLHT)
- AES-128 CSEc cryptography engine (vs STM32G474RET6)
- Dual-core architecture (Cortex-M4F + Cortex-M0+) (vs FS32K142)
Design Notes
The FS32K144UIT0VLHT requires a stable 2.7-5.5 V supply on VDD_HV pins and an internal 1.2 V core regulator output on VDD. According to the S32K1 datasheet, decoupling capacitors of 100 nF + 4.7 uF ceramic must be placed within 5 mm of each VDD_HV pin, plus a 10 uF bulk capacitor at the regulator input. For automotive 12 V battery applications, add a TVS diode (e.g. SMAJ16A) and a series ferrite bead to suppress load-dump transients per ISO 7637-2.
At 112 MHz and full peripheral activity the FS32K144UIT0VLHT dissipates roughly 200-300 mW. The 64-LQFP package has theta_JA around 50 C/W on a 4-layer JEDEC test board, giving a 15 C temperature rise over ambient. For under-hood environments above 85 C ambient, attach a thermal pad copper pour of at least 100 mm^2 on top layer to reduce theta_JA below 40 C/W. Estimate: P = 0.25 W, theta_JA = 50 C/W gives 12.5 C rise above ambient.
Route the Ethernet MII/RMII signals as 50 ohm controlled-impedance traces with matched length within 5 mm per the S32K1 hardware design guidelines. Keep CAN-FD differential pair impedance at 120 ohms with ground-referenced return path. Place the 32.768 kHz crystal within 5 mm of XTAL32K/EXTAL32K pins, with a guard ring tied to analog ground to minimize crosstalk from switching nodes. Use a 4-layer stackup with continuous ground plane beneath the MCU for EMI suppression.
Do not power VDD (1.2 V core) directly from an external regulator; VDD is the internal LDO output and only requires a 4.7 uF bypass capacitor. The reset pin RESET_b is active-low and must be pulled up to VDD_HV with a 10 kohm resistor plus 100 nF capacitor for proper power-on-reset timing. The CSEc engine requires initialization of the PRAMC and proper secure-boot header configuration; firmware without a valid CSEc header will not boot. Reference the S32K1 secure boot application note (AN5401) before CSEc firmware development.
Separate analog ground (VSSA) and digital ground (VSS) planes and connect them at a single point near the MCU VSS/VSSA pins to avoid ground loops through the ADC reference. Keep ADC input traces short and away from high-frequency digital lines (FlexIO, Ethernet). The ISELED differential output requires matched 100 ohm impedance and should be routed as a twisted pair on inner PCB layers. Per NXP hardware guidelines, the JTAG/SWD header should include 10 kohm pull-ups on SWDIO and SWCLK to ensure reliable debug-session establishment.
Compliance Information
FS32K144UIT0VLHT is the industrial temp grade (-40C to +105C). For AEC-Q100 Grade 1 automotive qualification, choose FS32K144UAT0VLHT. RoHS and REACH compliant per NXP product page.