FS32K144HFT0CLHT Equivalent & Substitute Parts

Part Overview

The FS32K144HFT0CLHT is an ARM Cortex-M4F S32K microcontroller IC featuring 32-bit single-core architecture operating at 80MHz with 512KB FLASH memory. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part is housed in a 64-LQFP (10x10) surface mount package with comprehensive connectivity options including CANbus, FlexIO, I2C, LINbus, SPI, and UART/USART interfaces.

Key Parameters

Parameter	Value
Manufacturer Part Number	FS32K144HFT0CLHT
Manufacturer	NXP USA Inc.
Core Processor	ARM Cortex-M4F
Core Size	32-Bit Single-Core
Speed	80MHz
Program Memory Size	512KB (512K x 8) FLASH
EEPROM Size	4K x 8
RAM Size	64K x 8
Voltage Supply (Vcc/Vdd)	2.7V ~ 5.5V
Data Converters	A/D 16x12b SAR; D/A 1x8b
Number of I/O	58
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-LQFP (10x10)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the FS32K144HFT0CLHT is determined by strict equivalence across the following critical parameters:

Core Processor: ARM Cortex-M4F
Core Size: 32-Bit Single-Core
Speed: 80MHz
Program Memory: 512KB FLASH
EEPROM: 4K x 8
RAM: 64K x 8
Voltage Supply: 2.7V ~ 5.5V
Data Converters: A/D 16x12b SAR; D/A 1x8b
Number of I/O: 58
Package: 64-LQFP (10x10)
Mounting Type: Surface Mount
Connectivity: CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
Peripherals: POR, PWM, WDT

Substitute parts are grouped based on packaging type (Tray vs. other) and operating temperature range. All substitute parts maintain identical core functionality and electrical specifications.

Parameter Comparison

Parameter	FS32K144HFT0CLHT (Main)	FS32K144HAT0MLHT	FS32K144HAT0CLHT	FS32K144HRT0CLHT
Manufacturer	NXP USA Inc.	NXP Semiconductors	NXP USA Inc.	NXP USA Inc.
Core Processor	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M4F	ARM Cortex-M4F
Speed	80MHz	80MHz	80MHz	80MHz
Program Memory	512KB FLASH	512KB FLASH	512KB FLASH	512KB FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8	4K x 8
RAM Size	64K x 8	64K x 8	64K x 8	64K x 8
Voltage Supply	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V
Data Converters	A/D 16x12b SAR; D/A 1x8b	A/D 16x12b SAR; D/A 1x8b	A/D 16x12b SAR; D/A 1x8b	A/D 16x12b SAR; D/A 1x8b
Number of I/O	58	58	58	58
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package	64-LQFP (10x10)	64-LQFP (10x10)	64-LQFP (10x10)	64-LQFP (10x10)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Not specified	Tray	Tray	Tray

Engineering Selection Recommendations

All three substitute parts (FS32K144HAT0MLHT, FS32K144HAT0CLHT, FS32K144HRT0CLHT) are active products with identical core electrical and functional specifications to the obsolete FS32K144HFT0CLHT. Selection between substitutes is based on the following criteria:

FS32K144HAT0MLHT: This part offers extended operating temperature range (-40°C ~ 125°C) and is ROHS3 compliant. Selection is appropriate for applications requiring higher temperature operation or enhanced environmental compliance.

FS32K144HAT0CLHT: This part maintains the original operating temperature range (-40°C ~ 85°C) and is ROHS3 compliant. Selection is appropriate for applications with standard temperature requirements and compliance mandates.

FS32K144HRT0CLHT: This part maintains the original operating temperature range (-40°C ~ 85°C) and is ROHS3 compliant. Selection is appropriate for applications with standard temperature requirements and compliance mandates.

All substitute parts are supplied in Tray packaging and carry REACH Unaffected status with identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can FS32K144HAT0MLHT replace FS32K144HFT0CLHT in all applications?

A: FS32K144HAT0MLHT is functionally equivalent with identical core specifications. The extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C) provides additional thermal margin. Substitution is valid for all applications within the original temperature specification and those requiring extended temperature operation.

Q: What is the difference between the three substitute parts?

A: FS32K144HAT0MLHT operates at -40°C ~ 125°C. FS32K144HAT0CLHT and FS32K144HRT0CLHT both operate at -40°C ~ 85°C. All three parts are electrically and functionally identical with the main part. Selection depends on application temperature requirements and packaging preferences.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. FS32K144HAT0MLHT, FS32K144HAT0CLHT, and FS32K144HRT0CLHT are all ROHS3 compliant. The main part (FS32K144HFT0CLHT) RoHS status is not specified.

Q: What packaging is supplied for substitute parts?

A: All substitute parts are supplied in Tray packaging. The main part packaging type is not specified.

Q: Are there any connectivity or peripheral differences between the main part and substitutes?

A: No. All parts feature identical connectivity (CANbus, FlexIO, I2C, LINbus, SPI, UART/USART) and peripherals (POR, PWM, WDT).

Q: Can I use FS32K144HAT0MLHT in a design originally specified for FS32K144HFT0CLHT?

A: Yes. FS32K144HAT0MLHT is a direct functional equivalent with identical electrical specifications. The extended temperature range provides additional operational margin without affecting compatibility.

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