Texas Instruments TMS320F280270DAT

Overview

TMS320F280270 from Texas Instruments is a 50-MHz C28x-core Piccolo™ microcontroller in a 38-pin TSSOP (DA) package, featuring 16KB on-chip flash, 4KB SARAM, dual 10-bit analog comparators, 6-channel 12-bit ADC with 800-ns conversion time, and three ePWM modules supporting up to six PWM outputs-designed for real-time motor control in compact industrial inverters.

For engineers reviewing the TMS320F280270 datasheet, TMS320F280270 pinout, TMS320F280270 application, or TMS320F280270 equivalent, key selection considerations include its 50-MHz CPU timing, integrated comparators with direct PWM trip routing, single 3.3-V supply operation, 20 GPIO pins with input filtering, and code-security module with 128-bit password protection.

Technical Context

The TMS320F280270 implements a Harvard-architecture 32-bit C28x CPU with 20-ns instruction cycle, atomic 16×16/32×32 MAC operations, and pipelined memory access enabling simultaneous program fetch, data read, and data write. It integrates a dedicated peripheral bus (Peripheral Frame 0/1/2) with protected memory-mapped registers and PIE interrupt expansion supporting all on-chip peripherals.

Its real-time JTAG debug architecture enables hardware breakpoints, data/address watchpoints, and live memory/register modification during execution-without software monitor intervention. The device uses internal voltage regulation and dual zero-pin oscillators, eliminating external crystal requirements while supporting dynamic PLL ratio changes and missing-clock detection.

Key Specifications

Pinout & Package

38-pin Thin Shrink Small-Outline Package (TSSOP), DA suffix, 0.65-mm pitch, body size 9.7 × 4.4 mm, JEDEC MO-153 compliant. Thermal pad not present; recommended PCB land pattern per TI SLMA015.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time motor control applications.

Compared with TMS320F280270, the TMS320F280230 trades 10 MHz CPU speed and one comparator for lower cost and identical footprint, while the TMS320F280260 retains full 50-MHz performance but halves flash capacity-making TMS320F280270 optimal for complex, secure, dual-fault-tolerant motor control firmware.

Availability

TMS320F280270 is available at Aetrix Electronics and suitable for motor control in e-bikes, white goods inverters, sewing machine drives, and industrial DC-DC converters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TMS320F280270 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and digital signal processing technologies, with decades of expertise in industrial and automotive control ICs.

The TMS320F280270 belongs to TI's Piccolo™ C2000™ microcontroller family, engineered specifically for cost-sensitive, real-time digital power and motor control applications requiring tight integration of analog sensing, PWM generation, and deterministic computation.

FAQ

What is the maximum CPU frequency and instruction cycle time of the TMS320F280270?

The TMS320F280270 operates at a maximum CPU frequency of 50 MHz, delivering a 20-ns instruction cycle time. This timing is achieved using an internal PLL with dynamic ratio adjustment and supported by dual zero-pin oscillators-one for system clock and one for watchdog timer. The 20-ns cycle enables deterministic execution of motor control loops within sub-microsecond deadlines. All timing specifications for the TMS320F280270 are validated across the full –40°C to 105°C temperature range.

Does the TMS320F280270 support crystal-less operation?

Yes, the TMS320F280270 supports crystal-less operation via two integrated zero-pin oscillators-one for the main system clock and one for the watchdog timer. These oscillators require no external components and provide sufficient accuracy for most motor control applications. External crystal (X1/X2) remains optional for higher-precision timing. The TMS320F280270 datasheet confirms this capability in Section 5.2 "Clocking" and Figure 1-1 functional block diagram.

How many analog comparators does the TMS320F280270 integrate, and what is their key use case?

The TMS320F280270 integrates two analog comparators (COMP1 and COMP2), each with an internal 10-bit DAC reference. Their primary use case is fast overcurrent and overvoltage protection: comparator outputs connect directly to ePWM trip-zone inputs, enabling hardware-level shutdown in under 1 µs-critical for safeguarding power stages in motor drives. This feature is explicitly documented in the SPRS810B datasheet Section 1.1 "Features" and Table 2-1 "Hardware Features".

What memory resources are available on the TMS320F280270, and how are they organized?

The TMS320F280270 provides 16K × 16-bit flash (four 4KB sectors), 4K × 16-bit SARAM (M0/M1), 2K × 16-bit L0 SARAM, 8K × 16-bit boot ROM, and 1K × 16-bit OTP. Flash and SARAM are dual-mapped to both program and data space, enabling unified memory programming. Sector-level erase/program is supported, and the code-security module locks flash/SARAM/OTP with a 128-bit password. Memory map details appear in Figure 2-1 of the SPRS810B datasheet.

Is the TMS320F280270 pin-compatible with other devices in the F2802x0 family?

Yes, the TMS320F280270 in the 38-pin DA package shares identical pinout and electrical characteristics with the TMS320F280230 (DA), TMS320F280260 (DA), and TMS320F280220 (DA). This allows direct substitution within the same package variant, though functional differences-such as CPU speed, flash size, and comparator count-must be verified in firmware. Pin compatibility is confirmed in Table 2-1 and Section 3.1 "Pin Assignments" of the SPRS810B datasheet.