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Texas Instruments TMS320F28374SZWTT
- Part No.:
- TMS320F28374SZWTT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 337-LFBGA
- Datasheet:
-
TMS320F28374SZWTT.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 337NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,254
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Product details
Overview
TMS320F28374SZWTT from Texas Instruments is a single-core C28x 32-bit floating-point real-time microcontroller operating at 200MHz, featuring IEEE 754 FPU, TMU, VCU-II, and CLA coprocessor. It integrates 512KB flash (ECC-protected), 132KB RAM (parity/ECC-protected), four 16-/12-bit ADCs (up to 4.4MSPS system throughput), and 24 ePWM channels with 16 HRPWM outputs - designed for high-precision motor control in industrial inverters and EV charging power modules.
For engineers reviewing the TMS320F28374SZWTT datasheet, TMS320F28374SZWTT pinout, TMS320F28374SZWTT application, or TMS320F28374SZWTT equivalent, key selection criteria include its nFBGA-337 package, –40°C to 105°C temperature grade (T suffix), dual CAN 2.0B interfaces, USB 2.0 MAC+PHY, and functional safety support up to ASIL B/SIL 2 for closed-loop power conversion systems.
Technical Context
The TMS320F28374SZWTT implements a single-CPU subsystem (C28x + CLA) derived from the F2837xS family, distinct from dual-CPU F2837xD variants. Its architecture centers on deterministic real-time control: the 200MHz CLA executes time-critical algorithms (e.g., current loop compensation) independently of the main CPU, while TMU/VCU-II accelerate trigonometric and complex math operations essential for field-oriented control.
Analog subsystem integration includes four independent ADCs with differential/SE input modes, hardware post-processing (offset calibration, windowed compare, DAC-referenced comparators), and eight SDFM channels for isolated shunt current sensing. Control peripherals feature 24 ePWMs with dead-band generation, six eCAPs, three eQEPs, and configurable logic blocks (CLB) for position manager augmentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit floating-point, 200MHz - enables real-time execution of complex control laws without external DSP assistance. |
| CLA Coprocessor | Independent 32-bit floating-point unit, 200MHz - offloads time-critical tasks (e.g., PWM update, protection logic) from main CPU to guarantee sub-microsecond response. |
| Flash Memory | 512KB (256KW), ECC-protected - ensures reliable firmware storage and runtime error correction in harsh industrial environments. |
| RAM | 132KB (66KW), parity/ECC-protected - supports dual-bank operation for zero-cycle context switching and fault-tolerant data buffering. |
| ADC System | 4 × 16-bit/12-bit ADCs; 1.1MSPS (16-bit) / 3.5MSPS (12-bit) per channel - delivers synchronized sampling across multiple current/voltage sensors for multi-phase motor control. |
| ePWM Channels | 24 channels with 16 high-resolution (HRPWM) outputs - provides precise gate drive timing for SiC/GaN inverters with <150ps resolution and programmable dead-time. |
| Functional Safety | ISO 26262 ASIL B & IEC 61508 SIL 2 certified by TÜV SÜD - supports systematic and random hardware failure mitigation in safety-critical power electronics. |
Pinout & Package
Package: 337-ball New Fine Pitch Ball Grid Array (nFBGA), 16mm × 16mm body size, lead-free/green compliant, thermal pad exposed on underside for enhanced heat dissipation in high-power motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO | Power supply rails | 1.2V core, 3.3V analog, 3.3V I/O - decoupling required per TI design guidelines to maintain signal integrity in noisy power-conversion environments. |
| VSS, VSSA, VSSOSC | Ground references | Separate analog/digital/power grounds - mandatory star grounding to minimize noise coupling into ADC and PWM timing paths. |
| X1/X2 | Crytal oscillator inputs | Supports external 1–20MHz crystal; internal 10MHz zero-pin oscillators available as backup - enables clock redundancy for fail-safe operation. |
| GPIO0–GPIO168 | Multiplexed I/O terminals | 169 pins with input filtering and peripheral muxing - allows flexible assignment of ePWM, eCAP, CAN, SPI, and ADC trigger signals without PCB redesign. |
| CANTXA/CANRXA, CANTXB/CANRXB | CAN 2.0B transceiver interfaces | Two ISO 11898-1-compliant CAN controllers with 32-message mailboxes - supports distributed control in multi-inverter systems and vehicle-level communication. |
| USBDM/USBDP | USB 2.0 differential pair | Integrated MAC + PHY - enables direct host connectivity for firmware updates, diagnostics, and real-time parameter tuning without external transceivers. |
Key Features
| Feature | Design Value |
|---|---|
| Trigonometric Math Unit (TMU) | Accelerates sin/cos/tan/arctan operations in <100ns - reduces torque loop computation latency by >60% versus software-only implementation. |
| Viterbi/Complex Math Unit (VCU-II) | Optimizes FFT, CRC, and complex arithmetic - enables real-time harmonic analysis and encoded position decoding in servo drives. |
| Sigma-Delta Filter Module (SDFM) | 8-channel parallel filtering with comparator-triggered action - supports isolated current sensing using ΣΔ modulators (e.g., AMC130x) with <1µs overcurrent response. |
| Configurable Logic Block (CLB) | 4-tile programmable logic fabric - implements custom encoder interfaces, PWM synchronization logic, or protection state machines without consuming CPU cycles. |
| Dual-zone security | Two 128-bit secure memory zones with DCSM lock - enables third-party IP protection for motor control algorithms while allowing customer application code in non-secure space. |
Applications
| Industrial Motor Drive | EV Charging Power Module |
|---|---|
Use Scenario: Closed-loop vector control of 3-phase PMSM/IM in HVAC compressors and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation, ADC sampling, and fault protection within 1µs jitter budget. Use Value: 200MHz C28x + CLA enables simultaneous execution of position loop (10kHz), current loop (20kHz), and voltage loop (5kHz) with deterministic timing. |
Use Scenario: Digital control of bidirectional AC/DC and DC/DC stages in 11–22kW EV on-board chargers (OBC). IC Role / Device Role / Timing Role: High-resolution PWM generation for SiC MOSFETs, isolated current/voltage sensing, and CAN-based communication with vehicle battery management system. Use Value: 16 HRPWM channels with <150ps resolution and hardware dead-time insertion ensure precise gate timing for high-frequency resonant topologies (LLC, CLLLC). |
| Solar String Inverter | Energy Storage PCS |
Use Scenario: MPPT tracking and grid-synchronized inverter control in residential/commercial photovoltaic systems. IC Role / Device Role / Timing Role: Dual ADC sampling of PV voltage/current and grid voltage/current with hardware-triggered synchronization; real-time grid impedance measurement. Use Value: Four independent ADCs with hardware post-processing (error-from-setpoint, zero-crossing detect) enable adaptive MPPT and anti-islanding detection without CPU intervention. |
Use Scenario: Bidirectional power flow control between battery stacks and medium-voltage grid in commercial energy storage systems. IC Role / Device Role / Timing Role: Coordinated control of DC-DC boost/buck converters and 3-phase inverter stage; thermal derating based on real-time cell voltage monitoring. Use Value: 24 ePWM channels with independent trip-zone (TZ) inputs allow per-phase short-circuit protection with <200ns response, critical for lithium-ion battery safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar real-time control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28377S | 1MB flash, 164KB RAM, same nFBGA-337 package and peripheral set - higher memory capacity for larger control algorithms or dual-firmware storage. | Preferred for systems requiring extended diagnostics logging, OTA firmware rollback, or multi-zone motor control with independent torque profiles. | Select when firmware complexity exceeds 512KB or when future scalability to advanced predictive maintenance features is required. |
| TMS320F28375S | Same 512KB flash/132KB RAM but offered in 176-pin HLQFP (PTP) and 100-pin HTQFP (PZP) packages - reduced pin count and different thermal profile. | Better suited for space-constrained designs like compact OBC modules or integrated servo drives where BGA assembly is not feasible. | Choose for cost-sensitive, lower-I/O-count applications where QFP packaging simplifies manufacturing and thermal management is less demanding. |
Compared with TMS320F28377S, the TMS320F28374SZWTT trades memory headroom for identical real-time performance and safety certification; versus TMS320F28375S, it retains full 337-ball I/O flexibility and thermal capability while sharing core computational resources - making it optimal for high-density, thermally demanding industrial inverters.
Availability
TMS320F28374SZWTT is available at Aetrix Electronics and suitable for industrial motor drives, EV charging power modules, and solar string inverters requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-critical production programs.
Supply support for TMS320F28374SZWTT 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 real-time control silicon.
The TMS320F28374SZWTT belongs to TI's C2000™ Premium performance MCU line, engineered specifically for deterministic, high-precision closed-loop control in power electronics - emphasizing computational throughput, analog integration, and functional safety compliance.
FAQ
What is the operating temperature range of the TMS320F28374SZWTT?
The TMS320F28374SZWTT is rated for a junction temperature range of –40°C to 105°C (T-grade), validated per JEDEC JESD22-A104. This specification ensures reliable operation in industrial motor drive enclosures and EV charging power modules exposed to ambient temperatures up to 85°C with proper thermal design. The ZWTT suffix confirms the nFBGA-337 package with exposed thermal pad optimized for this thermal envelope.
Does the TMS320F28374SZWTT support functional safety certification?
Yes, the TMS320F28374SZWTT is certified to ISO 26262 ASIL B and IEC 61508 SIL 2 by TÜV SÜD, with hardware integrity meeting ASIL B requirements. Documentation including FMEDA reports, safety manuals, and diagnostic coverage analysis is provided by Texas Instruments to support system-level safety development for industrial and automotive power conversion applications using the TMS320F28374SZWTT.
How many ADC channels does the TMS320F28374SZWTT support in 16-bit mode?
In 16-bit mode, the TMS320F28374SZWTT supports up to 12 differential input channels across its four independent ADCs, delivering 1.1MSPS per converter (4.4MSPS total system throughput). Each ADC includes a dedicated sample-and-hold circuit and hardware post-processing features such as saturating offset calibration and windowed comparators - critical for precision current sensing in motor phase legs.
What communication interfaces are integrated into the TMS320F28374SZWTT?
The TMS320F28374SZWTT integrates two CAN 2.0B modules (ISO 11898-1 compliant), four SCI/UART interfaces, three SPI ports, two I²C interfaces, two McBSPs, one USB 2.0 port (with integrated MAC and PHY), and a 12-pin uPP interface. These interfaces enable robust connectivity to gate drivers, isolated ADCs, external FPGAs, BMS controllers, and host systems - all accessible via its 169 GPIO pins in the nFBGA-337 package.
Is the TMS320F28374SZWTT pin-compatible with other F2837xS devices?
Yes, the TMS320F28374SZWTT is pin-to-pin compatible with other F2837xS devices in the same nFBGA-337 (ZWT) package, including TMS320F28377S and TMS320F28379S. This compatibility allows hardware reuse across product variants - for example, upgrading from 512KB to 1MB flash by replacing TMS320F28374SZWTT with TMS320F28377SZWTT without PCB changes - while maintaining identical signal routing and thermal layout.
TMS320F28374SZWTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 337-LFBGA
- Series:
- C2000™ C28x Delfino™, Functional Safety (FuSa)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 200MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, McBSP, SCI, SPI, uPP, UART/USART, USB
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 169
- Program Memory Size:
- 512KB (256K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 66K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 3.47V
- Data Converters:
- A/D 24x12b; D/A 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F28374SZWTT FAQ
1.How can I place an order for TMS320F28374SZWTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F28374SZWTT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS320F28374SZWTT reliable?
The price and inventory of TMS320F28374SZWTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F28374SZWTT is usually 5 days.
3.What payment methods are accepted for TMS320F28374SZWTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F28374SZWTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F28374SZWTT?
TMS320F28374SZWTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F28374SZWTT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS320F28374SZWTT?
For technical support, including TMS320F28374SZWTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F28374SZWTT requirements.
6.How does Aetrix verify that TMS320F28374SZWTT is sourced from the original manufacturer or authorized distributors?
All TMS320F28374SZWTT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS320F28374SZWTT meets industry standards.
7.What is the process for return or replacement of TMS320F28374SZWTT?
All TMS320F28374SZWTT units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F28374SZWTT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS320F28374SZWTT part is unused and in its original packaging.
Return procedure for TMS320F28374SZWTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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