1 Features
• Real-time processing:
– 150MHz C28x 32-bit DSP CPU
– Equivalent to 300MHz Arm® Cortex®-M7
based device on real-time signal chain
performance (see the Real-time Benchmarks
Showcasing C2000™ Control MCU's Optimized
Signal Chain Application Note
– IEEE 754 single-precision Floating-Point Unit
(FPU32)
– Trigonometric Math Unit (TMU)
• Support for Nonlinear Proportional Integral
Derivative (NLPID) control
– CRC Engine and Instructions (VCRC)
• Programmable Control Law Accelerator (CLA)
– 150MHz
– Equivalent to 200MHz Arm® Cortex®-M7
based device on real-time signal chain
performance (see the Real-time Benchmarks
Showcasing C2000™ Control MCU's Optimized
Signal Chain Application Note
– IEEE 754 single-precision floating-point
instructions
– Executes code independently of main CPU
• On-chip memory
– 1088KB of flash (ECC-protected) across five
independent banks
• Four 256KB banks
• One 64KB bank, ideal of LFU/Bootloaders/
data
– 8KB of OTP (One Time Programmable flash
memory)
– 133KB of RAM (ECC/Parity protected)
• Security
– Secure Boot
– JTAG Lock
– Advanced Encryption Standard (AES)
accelerator
– Unique Identification (UID) number
• Clock and system control
– Two internal 10MHz oscillators
– Crystal oscillator or external clock input
– Windowed watchdog timer module
– Missing clock detection circuitry
– Dual-clock Comparator (DCC)
• 3.3V I/O design
– Internal VREG generation allows for singlesupply
design
– Brownout reset (BOR) circuit
– 5V fail-safe and tolerant capability on 4 GPIOs
for PMBUS/I2C support
– Configurable 1.35V VIH on 4 GPIOs
• System peripherals
– 6-channel Direct Memory Access (DMA)
controller
– 91 individually programmable multiplexed
General-Purpose Input/Output (GPIO) pins
(22 shared with Analog)
– 17 digital inputs on analog pins
– Enhanced Peripheral Interrupt Expansion
(ePIE)
– Multiple low-power mode (LPM) support
• Communications peripherals
– One Power-Management Bus (PMBus)
interface
• Fast Plus Mode Support - 1MHz SCL
• 5V/3.3V/1.35V VIH support on select pins
– Two Inter-integrated Circuit (I2C) interfaces
– Two Controller Area Network with Flexible
Data-Rate (CAN FD/MCAN) bus port
• 4KB message RAM per MCAN module,
independent of system memory
• Ability to re-use RAM for CPU data variables
if MCAN is not used
– One Universal Serial Bus (USB 2.0 MAC +
PHY)
– Two Serial Peripheral Interface (SPI) ports
– Three UART-compatible Serial Communication
Interface (SCI)
– One UART-compatible Local Interconnect
Network (LIN) interface
– Fast Serial Interface (FSI) with one transmitter
and one receiver (up to 200Mbps)
• Analog system
– Five 3.9MSPS, 12-bit Analog-to-Digital
Converters (ADCs)
• Up to 39 external channels (includes one
gpdac output)
• Four integrated Post-Processing Blocks
(PPB) per ADC
– Four windowed comparators (CMPSS) with
12-bit reference Digital-to-Analog Converters
(DACs)
• Digital glitch filters
• Low DAC output to pin capability on
CMPSS1
– One 12-bit buffered DAC output
– Three Programmable Gain Amplifiers (PGAs)
• Unity gain support
• Inverting and non-inverting gain mode
support
• Programmable output filtering
• Enhanced control peripherals
– 24 ePWM channels with 12 channels that have
high-resolution capability (150ps resolution)
• Integrated dead-band support
• Integrated hardware trip zones (TZs)
– Two Enhanced Capture (eCAP) modules
– Three Enhanced Quadrature Encoder Pulse
(eQEP) modules with support for CW/CCW
operation modes
– Embedded Pattern Generator (EPG)
• Configurable Logic Block (CLB)
– 2 tiles
– Augments existing peripheral capability
– Supports position manager solutions
• Neural-network Processing Unit (NPU)
– Highly Optimized for Deep Convolutional
Neural Networks (CNN)
– Variable weights and data lengths
• 8-bit and 4-bit weights
• 8-bit and 4-bit data
– 600MOPS (Mega Operations Per Second) at
75MHz on 8bWx8bD
– 1200MOPS at 75MHz on 4bWx8bD
– Up to 10x NN inferencing performance
improvement vs SW techniques
– No direct coding required, TI AI tools generate
FW libraries
– Real-time control focused Edge AI Models
• ARC fault example
• Motor fault example
• Live Firmware Update (LFU)
• Diagnostic features
– Memory Power-On Self-Test (MPOST)
• Functional Safety-Compliant 1
– Developed for functional safety applications
– Documentation available to aid ISO 26262 and
IEC 61508 system design
– Systematic capability up to ASIL D and SIL 3
– Hardware integrity up to ASIL B and SIL 2
• Safety-related certification
– ISO 26262 certification up to ASIL B by TÜV
SÜD
• Package options:
– 128-pin Thin Quad Flatpack (TQFP)
[PDT suffix]
– 100-pin Low-profile Quad Flatpack (LQFP)
[PZ suffix]
– 80-pin TQFP [PNA suffix]
– 64-pin LQFP [PM suffix]
– 56-pin Very Thin Quad Flatpack No-Lead
(VQFN) [RSH suffix]
• Temperature options:
– Junction (TJ): –40°C to 150°C

2 Applications
• Appliances
– Air conditioner outdoor unit
• Building automation
– Door operator drive control
• Industrial machine & machine tools
– Automated sorting equipment
– Textile machine
• AC inverter & VF drives
– AC drive control module
– AC drive position feedback
– AC drive power stage module
• Linear motor transport systems
– Linear motor power stage
• Single & multi axis servo drives
– Servo drive position feedback
– Servo drive power stage module
• Speed controlled BLDC drives
– AC-input BLDC motor drive
– DC-input BLDC motor drive
• Factory automation
– Robot servo drive
– Mobile robot motor control
– Position sensor
• Industrial power
– Industrial AC-DC
• UPS
– Three-phase UPS
– Single-phase online UPS
• Telecom & server power
– Merchant DC/DC
– Merchant network & server PSU
– Merchant telecom rectifiers
• Hybrids, electric & powertrain systems
– DC/DC converter
– Inverter & motor control
– On-board (OBC) & wireless charger
– Virtual engine sound system (VESS)
– Engine fan
– eTurbo/charger
– Pump
– Electric power steering (EPS)
• Infotainment and cluster
– Head-up display
– Automotive head unit
– Automotive external amplifier
• Body electronics & lighting
– Automotive HVAC compressor module
– DC/AC inverter
– Headlight
• ADAS
– Mechanically scanning LIDAR
• EV charging infrastructure
– AC charging (pile) station
– DC charging (pile) station
– EV charging station power module
– Wireless EV charging station
• Renewable energy storage
– Energy storage power conversion system
(PCS)
– Portable Power Station
• Solar energy
– Central inverter
– Micro inverter
– Solar power optimizer
– Solar arc protection
– Rapid shutdown
– String inverter

3 Description
The TMS320F28P55x (F28P55x) is a member of the C2000™ real-time microcontroller family of scalable,
ultra-low latency devices designed for efficiency in power electronics, including but not limited to: high power
density, high switching frequencies, and supporting the use of GaN and SiC technologies.
These include such applications as:
• Motor drives
• Appliances
• Hybrid, electric & powertrain systems
• Solar & EV charging
• Digital power
• Body electronics & lighting
• Test & measurement
The real-time control subsystem is based on TI’s 32-bit C28x DSP core, which provides 150MHz of signalprocessing
performance for floating- or fixed-point code running from either on-chip flash or SRAM. The
C28x CPU is further boosted by the Floating-Point Unit (FPU), Trigonometric Math Unit (TMU), and VCRC
(Cyclical Redundancy Check) extended instruction sets, speeding up common algorithms key to real-time control
systems.
The CLA allows significant offloading of common tasks from the main C28x CPU. The CLA is an independent
32-bit floating-point math accelerator that executes in parallel with the CPU. Additionally, the CLA has its own
dedicated memory resources and it can directly access the key peripherals that are required in a typical control
system. Support of a subset of ANSI C is standard, as are key features like hardware breakpoints and hardware
task-switching.
The Neural-network Processing Unit (NPU) can support machine-learning inferencing using pre-trained models.
Capable of 600–1200MOPS (Mega Operations Per Second) with model support for ARC fault detection or
Motor Fault detection, the NPU provides up to 10x NN inferencing cycle improvement versus a SW-only-based
implementation. Load and train models with the Edge AI Studio - Model Composer from TI or with the Tiny
ML Modelmaker for an advanced set of capabilities. Source code for the C28x is generated by these tools, no
manual coding is necessary. For customers who rely on their own AI training framework, TI's Neural Network
Compiler can help port your AI model to be compatible with many C28x-based MCUs. For those interested in
reference solutions, request access to TI's Arc Fault Detection Project or the Motor Bearing Fault Detection
Project.
The F28P55x supports up to 1088KB of flash memory divided into four 256KB banks plus one 64KB bank, which
enable programming one bank and execution in another bank in parallel. Up to 133KB of on-chip SRAM is also
available to supplement the flash memory.
The Live Firmware Update hardware enhancements on F28P55x allow fast context switching from the old
firmware to the new firmware to minimize application downtime when updating the device firmware.