Texas Instruments TMS320F28027PTT

Overview

TMS320F28027PTT from Texas Instruments is a 32-bit C28x-core microcontroller optimized for real-time motor control and digital power applications, operating at 60 MHz (16.67-ns cycle time), featuring 32 KB on-chip Flash, 6 KB SARAM, 8 KB Boot ROM, and integrated 12-bit ADC with 7 input channels and 3 MSPS sampling rate.

For engineers reviewing the TMS320F28027PTT datasheet, TMS320F28027PTT pinout, TMS320F28027PTT application, or TMS320F28027PTT equivalent, this device delivers deterministic real-time control with ePWM, HRPWM, eCAP, SCI/UART, SPI, I²C, analog comparators, and code-security module - critical for inverter gate drive timing, closed-loop current sensing, and firmware protection in industrial drives.

Technical Context

The TMS320F28027PTT implements a Harvard bus architecture with atomic instruction execution and unified memory model, enabling deterministic interrupt latency under 6 CPU cycles. Its peripheral set includes four ePWM modules (each with independent 16-bit timer and high-resolution extension), one eCAP input, and dual-sample-and-hold ADC supporting ratio-metric VREFHI/VREFLO references.

Internal voltage regulation enables single 3.3-V rail operation without sequencing; clocking supports internal zero-pin oscillators, external crystal (X1/X2), or external clock input (XCLKIN), with missing-clock detection and watchdog timer. GPIO multiplexing allows up to 22 programmable pins with configurable pullups and input filtering.

Key Specifications

Pinout & Package

Package: 48-pin Low-Profile Quad Flatpack (LQFP), 7.0 mm × 7.0 mm body, 0.5-mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320F28026PTT, the TMS320F28027PTT adds HRPWM and full eCAP support for advanced fault diagnostics; versus TMS320F28027FPTT, it omits InstaSPIN-FOC firmware but retains identical hardware capability - making it ideal for custom control law implementation with full resource access.

Availability

TMS320F28027PTT is available at Aetrix Electronics and suitable for air conditioner outdoor units, inverter & motor control systems, and micro inverter designs requiring stable component supply across extended industrial temperature ranges and long production lifecycles.

Supply support for TMS320F28027PTT 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 company delivering analog and embedded processing solutions, with leadership in signal chain and power management technologies since 1930.

The TMS320F28027PTT belongs to TI's C2000™ real-time microcontroller product line, designed specifically for closed-loop control in industrial motor drives, solar inverters, digital power supplies, and EV subsystems - emphasizing deterministic timing, analog integration, and code security.

FAQ

What is the maximum operating frequency of the TMS320F28027PTT?

The TMS320F28027PTT operates at a maximum CPU frequency of 60 MHz, corresponding to a 16.67-ns instruction cycle time. This speed is achieved using the internal PLL with either the on-chip zero-pin oscillator or an external crystal (X1/X2) or clock source (XCLKIN). The device maintains full peripheral functionality-including ePWM, ADC, and communications interfaces-at this rated frequency under –40°C to +105°C conditions.

Does the TMS320F28027PTT support hardware-based fault protection?

Yes, the TMS320F28027PTT integrates trip-zone (TZ) inputs (TZ1–TZ3) that directly disable ePWM outputs within 100 ns upon assertion, independent of CPU intervention. These inputs accept external fault signals (e.g., overcurrent, overtemperature) or internal comparator outputs (COMP1OUT/COMP2OUT), enabling hardware-level protection for IGBTs or MOSFETs in power stages - a core feature confirmed in the device's functional block diagram and TRM Section 9.9.

How many analog-to-digital converter channels does the TMS320F28027PTT have?

The TMS320F28027PTT includes a 12-bit ADC with 13 total input channels: 7 in Group A (ADCINA0–ADCINA7, excluding ADCINA5) and 6 in Group B (ADCINB2–ADCINB7, excluding ADCINB0/B1/B5). It supports simultaneous sampling across both groups and hardware-triggered conversions synchronized to ePWM events - verified in Table 6-1 and Section 8.6 of the SPRS523P datasheet.

Is the TMS320F28027PTT pin-compatible with other F2802x family members in the same package?

Yes, the TMS320F28027PTT is pin-compatible with other 48-pin LQFP variants in the F2802x family, including TMS320F28026PTT and TMS320F28023PTT, as confirmed in Table 6-1 and Section 7.1 of the datasheet. All share identical pin assignments, electrical characteristics, and peripheral mappings - enabling hardware reuse across performance tiers while maintaining layout compatibility.

What communication interfaces are integrated into the TMS320F28027PTT?

The TMS320F28027PTT integrates one Serial Communications Interface (SCI) configured as UART, one Serial Peripheral Interface (SPI), and one Inter-Integrated Circuit (I²C) module - all with 4-level FIFOs to reduce CPU overhead. These interfaces support standard protocols for host MCU communication, sensor interfacing, and configuration of external power ICs, as documented in Section 1 Features and Figure 4-1 functional block diagram.