Texas Instruments TMS320F28044PZS

Overview

TMS320F28044PZS from Texas Instruments is a 100-MHz C28x digital signal processor with 64K × 16 flash, 10K × 16 SARAM, 12-bit 12.5-MSPS ADC (16 channels), 16 high-resolution PWM outputs (150-ps resolution), and integrated SPI/SCI/I²C peripherals - deployed in industrial AC-DC converters and three-phase UPS systems.

For engineers reviewing the TMS320F28044PZS datasheet, TMS320F28044PZS pinout, TMS320F28044PZS application, or TMS320F28044PZS equivalent, key selection criteria include CPU clock stability at 100 MHz, on-chip code security module enforcement, dual-sample-and-hold ADC timing control, HRPWM resolution scaling across 200–1000 kHz switching frequencies, and LQFP-100 package compatibility with industrial thermal derating requirements.

Technical Context

The TMS320F28044PZS implements a fixed-point C28x 32-bit CPU core with unified memory architecture, supporting single-cycle 32 × 32 MAC and dual 16 × 16 MAC operations. Its system control block integrates PLL-based clock generation, watchdog timer, and low-power IDLE/STANDBY/HALT modes with hardware-triggered wake-up via GPIO or peripheral interrupts.

Peripheral integration includes a 12-bit ADC with internal reference (ADCREFP/ADCREFM), two sample-and-hold circuits, and configurable start-of-conversion triggers (ADCSOCA/B); sixteen ePWM modules with trip-zone protection, dead-band generation, and 150-ps time-base resolution; and three independent communication interfaces - SPI-A, SCI-A, and I²C-A - all mapped to dedicated GPIO pins with programmable pullup/pulldown.

Key Specifications

Pinout & Package

Package: 100-pin Low-Profile Quad Flatpack (LQFP), 14.0 mm × 14.0 mm body, 0.5-mm pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with TMS320F28035PAGT, the TMS320F28044PZS delivers 67% higher CPU throughput and full HRPWM resolution at 1-MHz switching, while versus TMS320F28335PGFA it trades floating-point capability and memory size for LQFP-100 package simplicity and lower system-level thermal complexity.

Availability

TMS320F28044PZS is available at Aetrix Electronics and suitable for industrial AC-DC converters, three-phase UPS systems, and photovoltaic string inverters requiring stable component supply across extended production lifecycles.

Supply support for TMS320F28044PZS 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.

The TMS320F28044PZS belongs to TI's C2000™ real-time control microcontroller family, designed specifically for high-precision digital power conversion, motor control, and industrial automation applications demanding deterministic low-latency execution.

FAQ

What is the maximum ADC sampling rate supported by the TMS320F28044PZS?

The TMS320F28044PZS supports a maximum ADC conversion rate of 12.5 MSPS, achieved with an 80-ns conversion time per sample. This rate applies to single-channel operation; simultaneous sampling across multiple channels maintains aggregate throughput within the same timing constraint, enabled by dual sample-and-hold circuitry and flexible SOC triggering via ePWM or software.

Does the TMS320F28044PZS support floating-point arithmetic natively?

No, the TMS320F28044PZS implements a fixed-point C28x CPU core and does not include a hardware floating-point unit (FPU). It relies on TI's C28x IQ Math Library for efficient Q-format arithmetic, which provides scalable precision for control-law implementation without FPU overhead - a deliberate design choice to optimize cost, power, and real-time determinism in digital power applications.

How many PWM outputs does the TMS320F28044PZS provide, and what is their timing resolution?

The TMS320F28044PZS provides 16 enhanced PWM (ePWM) outputs with 150-ps time-base resolution. This resolution enables precise dead-time insertion, phase-shift control, and synchronization across multiple power stages - critical for interleaved topologies and multi-phase motor drives - while maintaining 14.8-bit effective resolution at 200-kHz switching frequency.

Is the TMS320F28044PZS pin-compatible with other C2000™ devices in the F280xx series?

No, the TMS320F28044PZS is not pin-compatible with other F280xx-series devices such as the F28027 or F28035 due to differences in peripheral mapping, GPIO count, and power pin distribution. While functional overlap exists in CPU architecture and peripheral IP, physical pin assignments - including ADC input locations, ePWM output routing, and JTAG interface placement - are unique to the PZ package variant of the F28044.

What debug interfaces are supported by the TMS320F28044PZS?

The TMS320F28044PZS supports IEEE 1149.1-compliant JTAG boundary scan via seven dedicated pins (TCK, TMS, TDI, TDO, TRST, EMU0, EMU1), enabling real-time emulation, flash programming, and hardware-assisted breakpoint debugging. It also supports Code Composer Studio™ IDE with C28x-optimized toolchain and SYS/BIOS RTOS integration for full-cycle development and validation.