FS32K144ULT0VLHT Equivalent & Substitute Parts

Part Overview

The FS32K144ULT0VLHT is an ARM Cortex-M4F S32K microcontroller IC manufactured by NXP USA Inc. This 32-bit single-core embedded processor operates at 112MHz with 512KB FLASH program memory and is housed in a 64-LQFP (10x10) surface mount package. The device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications, memory configurations, and package formats are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer	NXP USA Inc.
Series	S32K
Core Processor	ARM Cortex-M4F
Core Size	32-Bit Single-Core
Speed	112MHz
Program Memory Size	512KB (512K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	64K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 5.5V
Package / Case	64-LQFP (10x10)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 105°C (TA)
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the FS32K144ULT0VLHT are identified based on strict equivalence of the following parameters:

Core processor architecture: ARM Cortex-M4F
Operating frequency: 112MHz
Program memory capacity: 512KB FLASH
EEPROM capacity: 4K x 8
RAM capacity: 64K x 8
Supply voltage range: 2.7V ~ 5.5V
Package format: 64-LQFP (10x10)
Mounting type: Surface Mount
Operating temperature range: -40°C ~ 105°C
Connectivity interfaces: CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
Peripheral features: POR, PWM, WDT
I/O count: 58 pins
RoHS compliance: ROHS3 Compliant
MSL rating: 3 (168 Hours)

The substitute part FS32K144UIT0VLHT meets all these criteria and is therefore functionally and mechanically interchangeable with the main part number.

Parameter Comparison

Parameter	FS32K144ULT0VLHT	FS32K144UIT0VLHT	Match
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	112MHz	112MHz	✓
Program Memory Size	512KB (512K x 8)	512KB (512K x 8)	✓
Program Memory Type	FLASH	FLASH	✓
EEPROM Size	4K x 8	4K x 8	✓
RAM Size	64K x 8	64K x 8	✓
Voltage Supply (Vcc/Vdd)	2.7V ~ 5.5V	2.7V ~ 5.5V	✓
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	58	58	✓
Package / Case	64-LQFP (10x10)	64-LQFP (10x10)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	3 (168 Hours)	3 (168 Hours)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
ECCN	5A992C	5A992C	✓
HTSUS	8542.31.0001	8542.31.0001	✓

Engineering Selection Recommendations

Both the FS32K144ULT0VLHT and FS32K144UIT0VLHT are Active product status devices from NXP USA Inc. and carry identical electrical, mechanical, and compliance specifications. Selection between these parts may be based on inventory availability, lead time, or supply chain requirements. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for embedded microcontroller applications. The identical MSL rating of 3 (168 Hours) ensures equivalent moisture sensitivity handling during storage and assembly processes.

Frequently Asked Questions (FAQ)

Q: Are FS32K144ULT0VLHT and FS32K144UIT0VLHT pin-for-pin compatible?

A: Yes. Both devices use the 64-LQFP (10x10) package with 58 I/O pins and identical pinout configurations. They are mechanically and electrically interchangeable.

Q: Can I substitute FS32K144UIT0VLHT for FS32K144ULT0VLHT in an existing PCB design?

A: Yes. The substitute part meets all electrical specifications, memory configurations, operating parameters, and package requirements. No PCB redesign is required.

Q: Do these parts have the same memory configuration?

A: Yes. Both parts feature 512KB FLASH program memory, 4K x 8 EEPROM, and 64K x 8 RAM. Memory organization and access characteristics are identical.

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

A: The part numbers differ only in the package code designation (ULT vs. UIT). All functional, electrical, and mechanical parameters are equivalent.

Q: Are both parts suitable for automotive or industrial temperature applications?

A: Yes. Both parts operate across the -40°C ~ 105°C temperature range and are suitable for industrial and automotive embedded applications.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts carry MSL rating 3 (168 Hours), requiring identical moisture sensitivity level handling and storage conditions.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications.

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