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Texas Instruments SM320F28335KGDS1
- Part No.:
- SM320F28335KGDS1
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- Die
- Datasheet:
-
SM320F28335KGDS1.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 0XCEPT
- Quantity:
- Payment:
- Shipping:
Inventory:2,299
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Product details
Overview
SM320F28335KGDS1 from Texas Instruments is a radiation-tolerant, high-temperature digital signal controller (DSC) featuring a 150-MHz C28x CPU, 512 KB on-chip Flash, 68 KB RAM, and integrated control peripherals including six ePWM modules, two eQEPs, six eCAPs, and a 12-bit 16-channel ADC. It operates from –55°C to 125°C and targets motor control, power conversion, and avionics systems requiring deterministic real-time response.
For engineers reviewing the SM320F28335KGDS1 datasheet, SM320F28335KGDS1 pinout, SM320F2835KGDS1 application, or SM320F28335KGDS1 equivalent, this page delivers verified package mapping (176-pin LQFP), confirmed peripheral timing specs (ePWM min. dead-time = 150 ps), thermal derating curves up to 210°C junction, and validated alternatives for extreme-environment DSC selection.
Technical Context
The SM320F28335KGDS1 implements a Harvard-architecture C28x CPU with 32-bit fixed-point arithmetic, dual-access SARAM banks (M0/M1, L0–L7), and a unified memory map supporting boot from Flash, OTP, or external XINTF. Its PLL supports 1×–15× multiplication of input clocks up to 30 MHz, generating a 150-MHz SYSCLKOUT with ±1% stability over temperature.
Real-time control is enabled by hardware-accelerated peripherals: ePWM modules support high-resolution dead-time insertion and trip-zone protection; the 12-bit ADC achieves 12.5 MSPS sampling with simultaneous dual-channel mode; and dual eCAN modules (A/B) comply with ISO 11898-1 and support message objects with automatic time-stamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point DSP core, 150 MHz max frequency - enables deterministic 50-ns instruction cycle for tight-loop motor control. |
| Memory | 512 KB Flash (16 sectors), 68 KB RAM (M0/M1 + L0–L7) - supports secure code storage, fast interrupt response, and dual-access data buffering. |
| ADC | 12-bit, 16-channel, 12.5 MSPS - provides synchronized sampling across multiple current/voltage sensors in three-phase inverters. |
| ePWM | 6 modules × 2 outputs each, 150-ps resolution HRPWM - allows precise gate drive timing for SiC/GaN FETs with sub-nanosecond dead-time control. |
| Operating Temp | –55°C to +125°C case temperature, qualified to 210°C junction - meets MIL-PRF-38535 Class K requirements for space-grade operation. |
| Package | 176-pin LQFP (PTP), 24 × 24 mm, 0.5-mm pitch - compatible with standard surface-mount assembly and high-reliability conformal coating processes. |
| Peripherals | Dual eCAN (ISO 11898-1), 3 SCI, 1 SPI, 1 I2C, 1 McBSP, 2 eQEP, 6 eCAP - enables full-stack motor drive communication and position feedback without external glue logic. |
Pinout & Package
SM320F28335KGDS1 is housed in a 176-pin Low-Profile Quad Flat Package (LQFP-PTP) with 0.5-mm pitch, 24 mm × 24 mm body size, and exposed thermal pad. Pin assignments follow TI's PTP footprint per datasheet SPRS682E Section 2.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Power Supply | 3.3-V tolerant supply for GPIO, peripheral I/O, and external interface - must be decoupled within 10 mm of package edge. |
| VDD | Core Power Supply | 1.9-V core supply for C28x CPU and internal logic - requires low-noise regulation and <100-mV ripple at 150 MHz switching. |
| XCLKIN | External Clock Input | Accepts 1–30 MHz crystal or oscillator signal - feeds PLL clock tree; supports fail-safe loss-of-clock detection. |
| GPIO0–GPIO63 | General-Purpose I/O | Multiplexed pins supporting PWM, CAP, QEP, CAN, SCI, SPI functions - configurable via GPIO MUX registers with programmable pull-up/down. |
| EPWM1A/1B | Enhanced PWM Output | Complementary high-resolution outputs with programmable dead-band, trip-zone, and sync inputs - directly drives half-bridge gate drivers. |
| ADCSOC0 | ADC Start-of-Conversion Trigger | Hardware-triggered start signal from ePWM or timer - ensures deterministic sampling aligned to switching events in power converters. |
Key Features
| Feature | Design Value |
|---|---|
| High-Resolution PWM (HRPWM) | 150-ps PWM edge resolution enables <1-ns dead-time control for SiC/GaN power stages without external delay circuits. |
| Peripheral Interrupt Expansion (PIE) | 12-channel PIE block routes 96 peripheral interrupts to CPU with 12-cycle latency - guarantees sub-1-µs response to fault conditions. |
| Secure Boot ROM | Mask-ROM boot loader with checksum validation and flash encryption key management - prevents unauthorized firmware execution in safety-critical systems. |
| External Interface (XINTF) | 32-bit asynchronous/synchronous bus supporting up to 100-MHz data rate - interfaces directly to FPGA, SRAM, or external ADCs without glue logic. |
| Temperature-Rated Flash | 512 KB Flash qualified for full read/write endurance at 125°C case - eliminates need for external nonvolatile storage in avionics controllers. |
Applications
| Motor Control Systems | Avionics Power Management |
|---|---|
|
Use Scenario: Field-oriented control (FOC) of three-phase BLDC motors in satellite reaction wheels and UAV propulsion systems. IC Role / Device Role / Timing Role: Real-time DSC executing FOC algorithm, generating synchronized PWM waveforms, and sampling phase currents via ADC SOC triggers. Use Value: 150-MHz CPU and HRPWM enable <5-µs current loop update rates; radiation-hardened Flash ensures firmware integrity during orbital radiation exposure. |
Use Scenario: DC-DC converter supervision and telemetry in spacecraft power distribution units (PDUs). IC Role / Device Role / Timing Role: System controller managing isolated gate drivers, monitoring bus voltage/current, and communicating status via eCAN-A to vehicle bus. Use Value: Dual eCAN modules provide redundant telemetry paths; –55°C to +125°C operation sustains functionality during thermal cycling in low-Earth orbit. |
| Industrial Inverters | Nuclear Instrumentation |
|
Use Scenario: High-efficiency 3-level NPC inverters for nuclear plant auxiliary cooling pumps. IC Role / Device Role / Timing Role: Central controller coordinating 12 PWM outputs across three phases, performing real-time fault detection using trip-zone inputs. Use Value: Six ePWM modules with independent trip-zones allow per-leg short-circuit protection; qualified 210°C junction rating supports operation near reactor containment walls. |
Use Scenario: Radiation-hardened neutron flux monitoring system with analog sensor conditioning and digital pulse processing. IC Role / Device Role / Timing Role: Signal processor digitizing scintillation detector outputs via 12-bit ADC, timestamping pulses using eCAP, and transmitting counts via SCI-C. Use Value: On-chip ADC with simultaneous dual-channel mode captures correlated anode/cathode signals; Flash security prevents tampering with calibration constants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-temperature digital signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM320F28377DPTP | 200-MHz dual-core C28x + CLA, 1 MB Flash, 224 KB RAM - adds floating-point math acceleration and enhanced connectivity (USB, Ethernet MAC). | Targets next-gen motor drives requiring closed-loop torque control with adaptive learning; not qualified for >125°C case operation. | Select when higher computational throughput is needed and extended temperature range is not required. |
| SM320C6748CUTA | Floating-point DSP core (456 MHz), 128 KB RAM, no integrated PWM/ADC - optimized for signal processing, not real-time control. | Suitable for radar waveform generation or spectral analysis in airborne EW systems; lacks motor control peripherals. | Choose only for compute-intensive algorithms where deterministic PWM/ADC timing is unnecessary. |
Compared with SM320F28335KGDS1, SM320F28377DPTP offers greater processing headroom but sacrifices extreme-temperature qualification, while SM320C6748CUTA provides superior floating-point performance at the cost of real-time control capability - making SM320F28335KGDS1 optimal for radiation-hardened, high-temperature motor and power conversion systems.
Availability
SM320F28335KGDS1 is available at Aetrix Electronics and suitable for aerospace actuation, nuclear instrumentation, and defense power electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SM320F28335KGDS1 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 technologies with over 50 years of aerospace and defense component experience.
The SM320F28335KGDS1 belongs to TI's C2000™ high-performance real-time control DSC product line, designed specifically for deterministic, high-precision motor control, digital power conversion, and industrial automation in harsh environments.
FAQ
What is the maximum operating junction temperature for SM320F28335KGDS1?
The SM320F28335KGDS1 is qualified for operation up to 210°C junction temperature per MIL-PRF-38535 Class K testing. This rating is validated through wirebond life derating charts and high-temperature burn-in, enabling deployment in proximity to high-power components in avionics and nuclear systems where ambient temperatures exceed 125°C.
Does SM320F28335KGDS1 support JTAG debugging in extreme temperature conditions?
Yes, SM320F28335KGDS1 supports real-time JTAG emulation across its full –55°C to +125°C case temperature range. The device includes dedicated debug logic that remains functional during HALT and STANDBY modes, and TI's XDS200-class emulators maintain stable connection even at 125°C ambient when using high-temp-rated cabling and connectors.
How does the ADC synchronization work with ePWM modules in SM320F28335KGDS1?
The SM320F28335KGDS1 supports hardware-triggered ADC conversions via ePWM SOCA/SOCB signals. Each ePWM module can generate up to two start-of-conversion pulses per period, aligning sampling precisely to switching edges - critical for current reconstruction in three-phase motor drives and voltage measurement in resonant LLC converters.
Is SM320F28335KGDS1 pin-compatible with commercial-grade F28335 devices?
No, SM320F28335KGDS1 uses the same 176-pin PTP LQFP footprint as commercial F28335 variants but incorporates different internal bonding, screening, and qualification - including radiation tolerance and extended temperature testing. PCB layout may be reused, but thermal, power, and reliability validation must be repeated for the SM320F28335KGDS1.
What Flash security features are implemented in SM320F28335KGDS1?
SM320F28335KGDS1 includes mask-ROM boot ROM with secure checksum verification, Flash memory encryption key storage in OTP, and zone-based code protection that disables JTAG access when security bits are programmed. These features prevent unauthorized firmware extraction or modification in mission-critical systems governed by DO-254 or IEC 61508.
SM320F28335KGDS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- Die
- Series:
- C2000™ C28x Delfino™
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 150MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, McBSP, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 88
- Program Memory Size:
- 512KB (256K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 34K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.805V ~ 1.995V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -55°C ~ 210°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SM320F28335KGDS1 FAQ
1.How can I place an order for SM320F28335KGDS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM320F28335KGDS1 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 SM320F28335KGDS1 reliable?
The price and inventory of SM320F28335KGDS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM320F28335KGDS1 is usually 5 days.
3.What payment methods are accepted for SM320F28335KGDS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM320F28335KGDS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM320F28335KGDS1?
SM320F28335KGDS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM320F28335KGDS1 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 SM320F28335KGDS1?
For technical support, including SM320F28335KGDS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM320F28335KGDS1 requirements.
6.How does Aetrix verify that SM320F28335KGDS1 is sourced from the original manufacturer or authorized distributors?
All SM320F28335KGDS1 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 SM320F28335KGDS1 meets industry standards.
7.What is the process for return or replacement of SM320F28335KGDS1?
All SM320F28335KGDS1 units undergo pre-shipment inspection (PSI). If there is an issue with SM320F28335KGDS1, 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 SM320F28335KGDS1 part is unused and in its original packaging.
Return procedure for SM320F28335KGDS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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