FS32K144HRT0MLLT Equivalent & Substitute Parts

Part Overview

The FS32K144HRT0MLLT is an ARM Cortex-M4F S32K microcontroller IC manufactured by NXP USA Inc. This 32-bit single-core device operates at 80MHz with 512KB FLASH program memory, 64KB RAM, and 4KB EEPROM, housed in a 100-LQFP (14x14) surface mount package. The device integrates comprehensive connectivity options including CANbus, FlexIO, I2C, LINbus, SPI, and UART/USART interfaces, along with essential peripherals such as PWM, WDT, and POR functions. With an active product status and ROHS3 compliance, this microcontroller serves embedded applications requiring robust real-time processing capabilities. Substitute parts are identified based on matching core electrical specifications, memory configuration, package type, and operational parameters.

Key Parameters

Parameter	Value
Manufacturer	NXP USA Inc.
Series	S32K
Core Processor	ARM Cortex-M4F
Core Size	32-Bit Single-Core
Speed	80MHz
Program Memory Size	512KB (512K x 8) FLASH
RAM Size	64K x 8
EEPROM Size	4K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	100-LQFP (14x14)
Mounting Type	Surface Mount
Data Converters	A/D 16x12b SAR; D/A 1x8b
Connectivity	CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
Peripherals	POR, PWM, WDT
Number of I/O	89
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the FS32K144HRT0MLLT are identified based on strict parametric equivalence within the S32K microcontroller family. The substitution criteria are defined by the following key parameters:

ARM Cortex-M4F core processor architecture
32-bit single-core configuration
80MHz operating frequency
512KB FLASH program memory capacity
64KB RAM and 4KB EEPROM configuration
100-LQFP (14x14) surface mount package
2.7V to 5.5V supply voltage range
-40°C to 125°C operating temperature range
Identical connectivity interfaces (CANbus, FlexIO, I2C, LINbus, SPI, UART/USART)
Matching peripheral set (POR, PWM, WDT)
89 I/O pins
ROHS3 compliance and active product status

Variations in packaging format (such as Tray versus standard packaging) do not affect electrical or functional equivalence and are considered acceptable substitutions for component selection purposes.

Parameter Comparison

Parameter	FS32K144HRT0MLLT	FS32K144HFT0MLLT
Manufacturer	NXP USA Inc.	NXP USA Inc.
Series	S32K	S32K
Core Processor	ARM Cortex-M4F	ARM Cortex-M4F
Core Size	32-Bit Single-Core	32-Bit Single-Core
Speed	80MHz	80MHz
Program Memory Size	512KB (512K x 8) FLASH	512KB (512K x 8) FLASH
RAM Size	64K x 8	64K x 8
EEPROM Size	4K x 8	4K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 5.5V	2.7V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)
Package / Case	100-LQFP (14x14)	100-LQFP (14x14)
Mounting Type	Surface Mount	Surface Mount
Data Converters	A/D 16x12b SAR; D/A 1x8b	A/D 16x12b SAR; D/A 1x8b
Connectivity	CANbus, FlexIO, I2C, LINbus, SPI, UART/USART	CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
Peripherals	POR, PWM, WDT	POR, PWM, WDT
Number of I/O	89	89
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active
Packaging Format	Standard	Tray

Engineering Selection Recommendations

Both the FS32K144HRT0MLLT and FS32K144HFT0MLLT are active products manufactured by NXP USA Inc. with identical electrical specifications and functional capabilities. Selection between these parts should be based on procurement and supply chain requirements rather than technical performance differences. Both devices maintain ROHS3 compliance and are suitable for applications requiring ARM Cortex-M4F processing with comprehensive embedded connectivity and peripheral integration. The packaging format difference (standard versus Tray) reflects distribution and handling preferences without affecting component functionality or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Are FS32K144HRT0MLLT and FS32K144HFT0MLLT electrically identical?

A: Yes. Both parts share identical core processor architecture, memory configuration, operating frequency, voltage specifications, temperature range, and peripheral functionality. They are parametric equivalents within the S32K microcontroller family.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. FS32K144HRT0MLLT uses standard packaging, while FS32K144HFT0MLLT is supplied in Tray format. This distinction affects logistics and handling but does not impact electrical performance or functionality.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both parts use the 100-LQFP (14x14) surface mount package with identical pin configuration, 89 I/O pins, and electrical characteristics. PCB layouts and firmware implementations require no modification when substituting between these parts.

Q: Are both parts suitable for automotive and industrial applications?

A: Both parts are active products with ROHS3 compliance and support the full operating temperature range of -40°C to 125°C. Suitability for specific applications depends on individual application requirements and qualification processes, which are independent of the packaging format difference.

Q: What connectivity options are available on both parts?

A: Both FS32K144HRT0MLLT and FS32K144HFT0MLLT provide identical connectivity: CANbus, FlexIO, I2C, LINbus, SPI, and UART/USART interfaces, enabling integration into diverse embedded systems requiring multi-protocol communication.

Q: Is there an inventory or availability difference between these parts?

A: Inventory levels may vary based on current supply conditions. FS32K144HRT0MLLT shows 25,965 pieces in stock, while FS32K144HFT0MLLT shows 27,242 pieces. Availability should be confirmed with your supplier for current procurement timelines.

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