FS32K144MFT0CLLT - NXP Semiconductors
IC MCU 32BIT 512KB FLASH 100LQFP
Full Technical Specifications
18 Parameters| Parameter / Attribute | Specification / Value |
|---|---|
| Series | S32K |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.7V ~ 5.5V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 64MHz |
| Package | Tray |
| RAM size | 64K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 4K x 8 |
| Peripherals | POR, PWM, WDT |
| Connectivity | CANbus, FlexIO, I²C, LINbus, SPI, UART/USART |
| Number of i (O) | 89 |
| Core processor | ARM® Cortex®-M4F |
| Case | 100-LQFP |
| Data converters | A/D 16x12b SAR; D/A1x8b |
| Program memory size | 512KB (512K x 8) |
Need Stock or a Drop-in Second-Source for FS32K144MFT0CLLT?
Package: LQFP-100 / LQFP-64 / LQFP-144 · Pin-compatible replacements with immediate Shenzhen spot stock
The S32K144 is the automotive and industrial workhorse of NXP current MCU line: Cortex-M4F to 112MHz, AEC-Q100, ASIL-B capable, with a 15-year longevity commitment that keeps the whole S32K1 platform in bills of materials decade-style. The family comes with a rare gift for sourcing: NXP states that all devices sharing a common package are pin-to-pin compatible, so the S32K142/144/146/148 are a genuine ladder - same socket, scaled flash, RAM and peripherals. What that means in practice: a line-down shortage on one flash grade can be bridged with another grade in the same package, with the firmware built for the smaller part.
Verified Pin-Compatible Replacements (2 verified alternatives)
One Grade Down, Same Socket
Shenzhen Spot Stock (24-48h Dispatch)
The 256KB-flash member (32KB SRAM): same Cortex-M4F core to 112MHz, same peripheral architecture, fewer FlexCAN and I/O instances by package.
Single 2.7V to 5.5V supply and -40 to +125/150C grades across the family.
One Grade Up
Shenzhen Spot Stock (24-48h Dispatch)
512KB to 1MB flash class (S32K146 at 1MB with 128KB SRAM): more FlexCAN, QuadSPI, ENET and trace features appearing as the ladder rises.
Same supply and temperature envelope - the family scales memory and peripherals, not the electrical interface.
Buyer & Quality Checklist for Sourcing Alternatives
- The family rule is official and rare: within S32K1, all devices sharing a package are pin-to-pin compatible - verify the package first, then the flash grade. This is the shortage-bridging playbook.
- Direction matters: larger-grade parts run firmware built for smaller members; the reverse fails at link time, not on the bench. Confirm the image size before substituting downward.
- Re-check the clock tree and the CSEc security configuration after any grade change - automotive designs carry these settings as part of the software delivery, not the silicon.
- AEC-Q100 grade and the temperature suffix are part of the orderable number: an industrial-grade equivalent does not serve an automotive certificate. Grade for grade.
- Longevity is the reason this family is sourcable decades out: NXP backs the platform with a 15-year program - expect the spot market to carry it long-term, and expect relabeling of grades within it. Date codes and documentation before dispatch.
- For production, hold one grade and one lot: automotive flash often carries synchronized configuration (CSEc keys, trim) that changes with lot handling, not just silicon.
Frequently Asked Technical Questions
Q: Are S32K142, S32K144 and S32K146 interchangeable?
A: In the same package, yes - NXP documents that all S32K1 devices sharing a package are pin-to-pin compatible. The differences are flash, RAM, peripheral counts and connectivity; firmware built for the smaller member runs on the larger, not the reverse.
Q: Can I bridge an S32K144 shortage with another S32K1 grade?
A: That is the family design intent: same-package grades are socket-compatible. Confirm the firmware image fits the substitute grade, re-check clock and security configuration, and keep the automotive grade and temperature suffix matched to the certificate.
Q: What is the S32K3 comparison?
A: S32K3 is the next-generation platform - a design migration with new tooling and safety architecture, not a grade change. Within S32K1 the ladder is the substitution story; across generations it is a project.