TMS320F28031RSHT Equivalent & Substitute Parts

Part Overview

The TMS320F28031RSHT is a 32-bit single-core C28x Piccolo microcontroller from Texas Instruments, operating at 60MHz with 64KB FLASH memory and 56-pin VQFN packaging. This part is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity when the original part becomes unavailable or when transitioning to active product lines.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Core Processor	C28x
Core Size	32-Bit Single-Core
Speed	60MHz
Program Memory Size	64KB (32K x 16)
Program Memory Type	FLASH
RAM Size	8K x 16
Voltage Supply (Vcc/Vdd)	1.71V ~ 1.995V
Data Converters	A/D 13x12b
Number of I/O	26
Connectivity	CANbus, I2C, LINbus, SCI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Package Type	56-VQFN (7x7)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320F28031RSHT is determined by strict alignment across the following critical parameters:

Core Compatibility Parameters:

Processor architecture (C28x)
Core configuration (32-Bit Single-Core)
Operating frequency (60MHz)
Memory configuration (64KB FLASH, 8K x 16 RAM)
Voltage supply range (1.71V ~ 1.995V)
Data converter specifications (A/D 13x12b)
I/O count (26 pins)
Connectivity interfaces (CANbus, I2C, LINbus, SCI, SPI, UART/USART)
Peripheral set (Brown-out Detect/Reset, POR, PWM, WDT)

Physical & Compliance Parameters:

Package type (56-VQFN with exposed pad)
Mounting type (Surface Mount)
RoHS compliance (ROHS3)
MSL rating (3)

The TMS320F28031RSHS qualifies as a direct substitute based on identical electrical specifications and package footprint. The primary distinction is product status and packaging format.

Parameter Comparison

Parameter	TMS320F28031RSHT	TMS320F28031RSHS	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Core Processor	C28x	C28x	✓
Core Size	32-Bit Single-Core	32-Bit Single-Core	✓
Speed	60MHz	60MHz	✓
Program Memory Size	64KB (32K x 16)	64KB (32K x 16)	✓
RAM Size	8K x 16	8K x 16	✓
Voltage Supply (Vcc/Vdd)	1.71V ~ 1.995V	1.71V ~ 1.995V	✓
Data Converters	A/D 13x12b	A/D 13x12b	✓
Number of I/O	26	26	✓
Connectivity	CANbus, I2C, LINbus, SCI, SPI, UART/USART	CANbus, I2C, LINbus, SCI, SPI, UART/USART	✓
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	✓
Package Type	56-VQFN (7x7)	56-VQFN (7x7)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	3 (168 Hours)	3 (168 Hours)	✓
Product Status	Obsolete	Active	Upgrade
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 125°C (TA)	Extended Range
Packaging Format	Tube	Tray	Different

Engineering Selection Recommendations

The TMS320F28031RSHS is a direct electrical and mechanical substitute for the TMS320F28031RSHT. Selection between these parts should be based on the following criteria:

Use TMS320F28031RSHS when:

Active product support and availability are required
Extended operating temperature range (-40°C to 125°C) is needed
New designs or production runs require current-generation components
Long-term supply chain continuity is a priority

Use TMS320F28031RSHT when:

Legacy system maintenance requires exact part matching
Existing inventory must be consumed
Thermal environment is limited to -40°C to 105°C

Both parts maintain identical electrical functionality, memory configuration, peripheral set, and physical footprint. The TMS320F28031RSHS offers extended temperature capability and active product status, making it the preferred choice for new applications and ongoing production.

Frequently Asked Questions (FAQ)

Q: Are TMS320F28031RSHT and TMS320F28031RSHS pin-compatible? A: Yes. Both parts use the 56-VQFN (7x7) package with exposed pad and identical pinout. PCB layout and footprint are interchangeable.

Q: What is the difference between these two parts? A: The primary differences are product status (obsolete vs. active), operating temperature range (-40°C to 105°C vs. -40°C to 125°C), and packaging format (tube vs. tray). All electrical specifications and memory configurations are identical.

Q: Can I use TMS320F28031RSHS as a direct replacement in existing designs? A: Yes. The TMS320F28031RSHS is a direct substitute with identical electrical and mechanical specifications. No design changes are required.

Q: Does the extended temperature range of TMS320F28031RSHS affect performance? A: No. The extended range (-40°C to 125°C) provides additional operational capability without affecting performance within the original temperature specification (-40°C to 105°C).

Q: Are there any compliance or certification differences? A: Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (3, 168 hours). Compliance certifications are equivalent.

Q: What packaging options are available? A: TMS320F28031RSHT is supplied in tube packaging. TMS320F28031RSHS is supplied in tray packaging. Both use the same 56-VQFN (7x7) component package.

Q: Is the TMS320F28031RSHT still available for purchase? A: The TMS320F28031RSHT is obsolete. The TMS320F28031RSHS is the active equivalent and is the recommended choice for new procurement.

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