PIC32MX320F032HT-40I/PT Equivalent & Substitute Parts

Part Overview

The PIC32MX320F032HT-40I/PT is a 32-bit single-core microcontroller from Microchip Technology's PIC32MX series, featuring MIPS32 M4K architecture with 32KB Flash memory and 8KB RAM. This device operates at 40MHz and integrates multiple communication interfaces including I2C, SPI, UART/USART, and LINbus connectivity. The component is actively produced and widely used in embedded control applications requiring moderate processing capability and integrated peripheral support.

Substitute parts are identified when electrical specifications, memory configuration, core architecture, and packaging remain identical across different packaging formats or distribution channels, ensuring functional equivalence in system design.

Key Parameters

Parameter	Value
Core Processor	MIPS32 M4K
Core Size	32-Bit Single-Core
Speed	40MHz
Program Memory Size	32KB (32K x 8)
Program Memory Type	FLASH
RAM Size	8K x 8
Number of I/O	53
Voltage Supply (Vcc/Vdd)	2.3V ~ 3.6V
Data Converters	A/D 16x10b
Connectivity	I2C, IrDA, LINbus, PMP, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-TQFP (10x10)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution between PIC32MX320F032HT-40I/PT and PIC32MX320F032H-40I/PT is based on identical electrical and functional parameters. Both devices share the same base product number (PIC32MX320), core architecture (MIPS32 M4K), memory configuration (32KB Flash, 8KB RAM), operating frequency (40MHz), I/O count (53 pins), voltage supply range (2.3V ~ 3.6V), and peripheral set.

The primary difference between these parts is packaging format: the main part uses Tape & Reel (TR) distribution, while the substitute uses Tray packaging. Both maintain identical 64-TQFP (10x10) physical package specifications, surface mount mounting type, and compliance certifications (ROHS3, MSL 3).

Substitution is valid when system design requirements do not impose constraints on distribution packaging format, as the electrical and mechanical characteristics remain fully equivalent.

Parameter Comparison

Parameter	PIC32MX320F032HT-40I/PT	PIC32MX320F032H-40I/PT	Match
Manufacturer	Microchip Technology	Microchip Technology	✓
Core Processor	MIPS32 M4K	MIPS32 M4K	✓
Core Size	32-Bit Single-Core	32-Bit Single-Core	✓
Speed	40MHz	40MHz	✓
Program Memory Size	32KB (32K x 8)	32KB (32K x 8)	✓
RAM Size	8K x 8	8K x 8	✓
Number of I/O	53	53	✓
Voltage Supply (Vcc/Vdd)	2.3V ~ 3.6V	2.3V ~ 3.6V	✓
Data Converters	A/D 16x10b	A/D 16x10b	✓
Connectivity	I2C, IrDA, LINbus, PMP, SPI, UART/USART	I2C, IrDA, LINbus, PMP, SPI, UART/USART	✓
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	✓
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	✓
Package / Case	64-TQFP (10x10)	64-TQFP (10x10)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	✓
Packaging Format	Tape & Reel (TR)	Tray	Different
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both PIC32MX320F032HT-40I/PT and PIC32MX320F032H-40I/PT are active production devices from Microchip Technology with identical electrical specifications and compliance certifications. Selection between these parts should be based on supply chain requirements and packaging format availability.

The Tape & Reel format (PIC32MX320F032HT-40I/PT) is optimized for high-volume automated assembly operations. The Tray format (PIC32MX320F032H-40I/PT) is suitable for lower-volume production or manual assembly workflows.

Both devices meet ROHS3 compliance and maintain MSL 3 moisture sensitivity specifications. No functional or electrical differences exist between these parts when used in identical circuit applications.

Frequently Asked Questions (FAQ)

Q: Can PIC32MX320F032H-40I/PT be used as a direct replacement for PIC32MX320F032HT-40I/PT?

A: Yes. Both parts are electrically and functionally identical. The only difference is packaging format (Tray versus Tape & Reel). Direct substitution is valid for any application using the 64-TQFP package.

Q: What is the significance of the packaging format difference?

A: Tape & Reel packaging is designed for automated pick-and-place assembly at high volumes. Tray packaging is used for manual handling or lower-volume production. The physical component dimensions and electrical characteristics remain identical.

Q: Are there any compatibility concerns when switching between these part numbers?

A: No compatibility concerns exist. Both parts use the same 64-TQFP (10x10) package footprint, pin configuration, and electrical specifications. PCB layout and schematic design require no modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PIC32MX320F032HT-40I/PT and PIC32MX320F032H-40I/PT are ROHS3 compliant with MSL 3 moisture sensitivity rating and identical REACH status.

Q: Which part should be selected for new designs?

A: Selection depends on manufacturing volume and assembly process. For high-volume automated assembly, use Tape & Reel format. For lower volumes or manual assembly, Tray format is appropriate. Electrical performance is identical.

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