TMS320F280260PTS Equivalent & Substitute Parts

Part Overview

The TMS320F280260PTS is a C28x C2000™ C28x Piccolo™ Microcontroller IC featuring 32-bit single-core architecture operating at 50MHz with 16KB FLASH program memory and 3K x 16 RAM. This device is classified as obsolete, necessitating identification of functionally equivalent substitute components for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	TMS320F280260PTS
Manufacturer	Texas Instruments
Series	C2000™ C28x Piccolo™
Core Processor	C28x
Core Size	32-Bit Single-Core
Speed	50MHz
Program Memory Size	16KB (8K x 16)
Program Memory Type	FLASH
RAM Size	3K x 16
Voltage - Supply (Vcc/Vdd)	1.71V ~ 1.995V
Data Converters	A/D 8x12b
Number of I/O	22
Connectivity	I2C, SCI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	48-LQFP (7x7)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the TMS320F280260PTS is determined by strict alignment across the following critical parameters:

Core Architecture & Performance: Identical C28x core processor, 32-bit single-core configuration, and 50MHz operating speed ensure instruction set compatibility and performance parity.

Memory Configuration: Matching 16KB (8K x 16) FLASH program memory and 3K x 16 RAM preserve firmware capacity and runtime data storage requirements.

Electrical Specifications: Identical supply voltage range (1.71V ~ 1.995V) and data converter specifications (A/D 8x12b) maintain signal integrity and analog interface compatibility.

Peripheral & Connectivity: Identical I/O count (22 pins), connectivity protocols (I2C, SCI, SPI, UART/USART), and peripheral features (Brown-out Detect/Reset, POR, PWM, WDT) ensure functional equivalence in system integration.

Package & Environmental: Identical 48-LQFP (7x7) surface mount package, RoHS3 compliance, and MSL rating guarantee mechanical and environmental compatibility.

Parameter Comparison

Parameter	TMS320F280260PTS (Main)	TMS320F280260PTT (Substitute)	Compatibility
Manufacturer Part Number	TMS320F280260PTS	TMS320F280260PTT	Different suffix
Manufacturer	Texas Instruments	Texas Instruments	Identical
Series	C2000™ C28x Piccolo™	C2000™ C28x Piccolo™	Identical
Core Processor	C28x	C28x	Identical
Core Size	32-Bit Single-Core	32-Bit Single-Core	Identical
Speed	50MHz	50MHz	Identical
Program Memory Size	16KB (8K x 16)	16KB (8K x 16)	Identical
Program Memory Type	FLASH	FLASH	Identical
RAM Size	3K x 16	3K x 16	Identical
Voltage - Supply (Vcc/Vdd)	1.71V ~ 1.995V	1.71V ~ 1.995V	Identical
Data Converters	A/D 8x12b	A/D 8x12b	Identical
Number of I/O	22	22	Identical
Connectivity	I2C, SCI, SPI, UART/USART	I2C, SCI, SPI, UART/USART	Identical
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Identical
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 105°C (TA)	Substitute has narrower range
Package / Case	48-LQFP (7x7)	48-LQFP (7x7)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	2 (1 Year)	2 (1 Year)	Identical
Product Status	Obsolete	Obsolete	Identical

Engineering Selection Recommendations

The TMS320F280260PTT is a direct functional equivalent to the TMS320F280260PTS. Both devices share identical core architecture, memory configuration, electrical specifications, peripheral integration, and package form factor. The primary distinction is the operating temperature range: the TMS320F280260PTT specifies -40°C ~ 105°C versus the TMS320F280260PTS at -40°C ~ 125°C.

Selection between these parts depends on application thermal requirements. For systems operating within the -40°C to 105°C envelope, the TMS320F280260PTT provides full functional compatibility. For applications requiring operation up to 125°C, the TMS320F280260PTS is required.

Both devices maintain ROHS3 compliance and identical MSL ratings, ensuring environmental and regulatory compatibility. Procurement of either part supports equivalent system performance and reliability within their respective thermal specifications.

Frequently Asked Questions (FAQ)

Q: Can TMS320F280260PTT replace TMS320F280260PTS in all applications?

A: Functional replacement is possible provided the application operating temperature does not exceed 105°C. The TMS320F280260PTT operates to 105°C maximum, while the TMS320F280260PTS extends to 125°C. Verify thermal requirements before substitution.

Q: Are the instruction sets identical between these parts?

A: Yes. Both devices implement the identical C28x core processor architecture and instruction set. Firmware compiled for one part executes identically on the other.

Q: Do these parts require different PCB layouts?

A: No. Both parts use the identical 48-LQFP (7x7) surface mount package with matching pin assignments. PCB layouts are directly compatible.

Q: What does the suffix difference (PTS vs PTT) indicate?

A: The suffix designates the operating temperature range. PTS specifies -40°C ~ 125°C; PTT specifies -40°C ~ 105°C. All other electrical and functional specifications remain identical.

Q: Are both parts RoHS compliant?

A: Yes. Both TMS320F280260PTS and TMS320F280260PTT are ROHS3 compliant with identical MSL ratings of 2 (1 Year).

Q: What is the impact of the narrower temperature range on reliability?

A: The TMS320F280260PTT is qualified and rated for operation to 105°C. Within this range, reliability and performance are equivalent to the TMS320F280260PTS. Operation beyond 105°C voids the thermal specification for the PTT variant.

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