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Texas Instruments SM320F2812PGFMEPG4
- Part No.:
- SM320F2812PGFMEPG4
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
SM320F2812PGFMEPG4.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SM320F2812PGFMEPG4 from Texas Instruments is a radiation-hardened, 32-bit C28x DSP with 150-MHz CPU clock, 256 KB on-chip Flash (F281x), 18 KB SARAM, and integrated eCAN, McBSP, SCI, SPI, and dual 16-channel 12-bit ADCs. It features an External Interface (XINTF) for parallel memory expansion and is deployed in space-grade motor control, power conversion, and real-time embedded systems requiring TID/ELDRS qualification.
For engineers reviewing the SM320F2812PGFMEPG4 datasheet, SM320F2812PGFMEPG4 pinout, SM320F2812PGFMEPG4 application, or SM320F2812PGFMEPG4 equivalent, key selection criteria include radiation tolerance (up to 100 krad(Si)), extended temperature range (–55°C to 125°C), deterministic real-time interrupt latency, and support for high-resolution PWM generation via dual Event Managers (EVA/EVB).
Technical Context
The SM320F2812PGFMEPG4 implements the C28x CPU core with Harvard bus architecture, supporting 32-bit fixed-point arithmetic and single-cycle multiply-accumulate (MAC). Its memory subsystem includes M0/M1 SARAM (6 KB), L0/L1/H0 SARAM (12 KB), Boot ROM (8 KB), and 256 KB Flash with 4×32 KB sectors and 1×16 KB sector.
Peripheral integration centers on two independent Event Manager modules (EVA/EVB), each providing six PWM outputs, quadrature encoder interface (QEP), capture units, and programmable dead-band generation. The device also integrates a 128-word PIE vector table, 12-channel eCAN controller compliant with ISO 11898-1, and three serial interfaces (McBSP, SCI, SPI) with FIFO support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point DSP, 150 MHz system clock (SYSCLKOUT) |
| Flash Memory | 256 KB on-chip Flash (F281x family), organized as four 32-KB + one 16-KB sectors |
| RAM | 18 KB on-chip SARAM: 6 KB M0/M1, 12 KB L0/L1/H0 |
| ADC | Dual 12-bit, 16-channel analog-to-digital converter; 12.5 MSPS aggregate sampling rate |
| eCAN Interface | Enhanced Controller Area Network module compliant with ISO 11898-1, 128 message objects |
| XINTF | External Interface supporting up to 1-MB address space, programmable wait states, and asynchronous/synchronous ready control |
| Operating Temperature | –55°C to +125°C (full military/space-grade range) |
| Radiation Tolerance | 100 krad(Si) total ionizing dose (TID), ELDRS-free design per MIL-PRF-38535 Class V |
Pinout & Package
SM320F2812PGFMEPG4 uses the 176-pin LQFP package (PGF), measuring 24 mm × 24 mm × 1.6 mm, with 0.5-mm pitch and exposed thermal pad. Pin assignments are defined in Section 2.3.2 of SGUS051B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VSSIO | I/O Power Supply / Ground | 3.3-V tolerant I/O bank; supports mixed-voltage interfacing with external peripherals |
| VDDA / VSSA | Analog Power / Ground | Separate 3.3-V analog supply for ADC reference and analog input circuitry |
| CLKIN / X1/X2 | External Clock Input / Crystal Oscillator Terminals | Accepts 1–30 MHz crystal or external clock; feeds PLL for SYSCLKOUT generation |
| GPIO0–GPIO63 | General-Purpose I/O Pins | Multiplexed with peripheral functions (PWM, CAP, QEP, SPI, SCI); configurable pull-up/down |
| EPWM1A–EPWM6B | Event Manager PWM Outputs | Twelve dedicated PWM output pins (6 per EVA/EVB), supporting complementary pairs with dead-band insertion |
| ADCSOCx / ADCREFP/ADCREFM | ADC Start-of-Conversion Trigger / Reference Inputs | Hardware-triggered sampling via EPWM, GPIO, or timer; internal 2.5-V reference or external differential reference |
Key Features
| Feature | Design Value |
|---|---|
| Real-Time JTAG Emulation | Full boundary-scan and real-time debug support via IEEE 1149.1, enabling non-intrusive code profiling and trace |
| Peripheral Interrupt Expansion (PIE) | 128-vector interrupt controller mapping 96 peripheral interrupts into CPU INT1–INT12, reducing latency vs. polling |
| Event Manager Dual-Channel PWM | Two independent modules (EVA/EVB) each delivering six PWM outputs with synchronized phase-shift and dead-band control |
| Quadrature Encoder Interface (QEP) | Dedicated hardware for position/speed sensing using incremental encoder signals; 32-bit position counter with index latch |
| Security Module | Code security logic preventing unauthorized read-out of Flash contents; supports password-protected emulation access |
| Low-Power Modes (IDLE/STANDBY/HALT) | Three configurable low-power states with selective peripheral clock gating and wake-up via external interrupt or watchdog timeout |
Applications
| Spacecraft Attitude Control | Satellite Power Management Unit |
|---|---|
Use Scenario: Closed-loop control of reaction wheels and magnetorquers using real-time sensor fusion and PID execution. IC Role / Device Role / Timing Role: Primary real-time controller executing 20-µs control loops with deterministic interrupt response and hardware-accelerated math. Use Value: Radiation-hardened operation ensures uninterrupted function in GEO/LEO orbits; dual ADC enables simultaneous current/voltage monitoring for MPPT and battery health. |
Use Scenario: Regulation of solar array output, battery charging, and DC-DC converter sequencing in multi-rail satellite power systems. IC Role / Device Role / Timing Role: System-level power supervisor coordinating analog sensing, digital control, and CAN-based telemetry reporting. Use Value: Integrated eCAN handles telemetry and command distribution across distributed power modules; XINTF supports external EEPROM for configuration storage. |
| High-Reliability Motor Drive | Nuclear Instrumentation & Control |
Use Scenario: Field-oriented control (FOC) of brushless DC motors in radiation-intensive environments such as nuclear facilities or particle accelerators. IC Role / Device Role / Timing Role: Real-time servo controller generating precise PWM waveforms with sub-microsecond timing accuracy and synchronized ADC sampling. Use Value: Dual Event Managers provide independent PWM generation for dual-motor control; QEP interface directly reads encoder feedback without CPU overhead. |
Use Scenario: Acquisition and processing of neutron flux, temperature, and pressure signals in reactor safety systems requiring fail-safe determinism. IC Role / Device Role / Timing Role: Safety-critical data acquisition node performing analog signal conditioning, filtering, and alarm thresholding within hard real-time deadlines. Use Value: 12-bit dual ADC supports simultaneous sampling of redundant sensors; Flash security prevents unauthorized firmware modification in certified safety chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP-based control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM320F28335PGFMEPG4 | Higher-performance C28x+ FPU core (150 MHz), 512 KB Flash, 68 KB RAM, single 16-channel 12-bit ADC, no XINTF | Lacks external memory interface but adds floating-point unit and enhanced PWM resolution; suited for algorithm-intensive control where memory expansion is unnecessary | Select when floating-point math or higher ADC throughput is required, and external memory is not needed |
| SM320F2808PGFMEPG4 | Same C28x core at 100 MHz, 128 KB Flash, 36 KB RAM, single 16-channel 12-bit ADC, no XINTF, no eCAN | Reduced peripheral set (no eCAN, no XINTF), lower radiation tolerance rating (50 krad vs. 100 krad), smaller memory footprint | Select for cost-sensitive, lower-complexity space applications where CAN communication and external memory are not required |
Compared with SM320F28335PGFMEPG4 and SM320F2808PGFMEPG4, the SM320F2812PGFMEPG4 uniquely balances radiation-hardened XINTF expansion, dual ADCs, and eCAN in a 150-MHz deterministic control platform - making it optimal for legacy-compatible, memory-extensible, and CAN-connected space-grade motor and power systems.
Availability
SM320F2812PGFMEPG4 is available at Aetrix Electronics and suitable for spacecraft attitude control, satellite power management, and high-reliability motor drive applications requiring stable component supply across extended product lifecycles.
Supply support for SM320F2812PGFMEPG4 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 aerospace-grade ICs with over 50 years of space-qualified component heritage.
The SM320F2812PGFMEPG4 belongs to TI's C2000™ Space-Hardened DSP product line, designed specifically for deterministic real-time control in radiation-intensive environments including satellites, launch vehicles, and nuclear infrastructure.
FAQ
What is the maximum operating frequency of the SM320F2812PGFMEPG4 CPU core?
The SM320F2812PGFMEPG4 features a C28x CPU core with a maximum system clock (SYSCLKOUT) of 150 MHz, achieved via its on-chip PLL that multiplies an external 1–30 MHz input clock. This frequency enables sub-microsecond interrupt response and real-time execution of complex control algorithms, critical for closed-loop systems in space applications.
Does the SM320F2812PGFMEPG4 support external memory expansion?
Yes, the SM320F2812PGFMEPG4 includes a dedicated External Interface (XINTF) supporting up to 1 MB of external memory with programmable wait states, asynchronous/synchronous ready control, and multiplexed address/data bus. This capability is exclusive to the F2812 variant and enables expansion beyond its 256 KB on-chip Flash and 18 KB SARAM.
How many analog-to-digital converters does the SM320F2812PGFMEPG4 integrate?
The SM320F2812PGFMEPG4 integrates two independent 12-bit, 16-channel analog-to-digital converters (ADCs), each capable of simultaneous or sequential sampling. This dual-ADC architecture allows concurrent voltage and current sensing in motor control or power conversion systems, with hardware-triggered start-of-conversion synchronized to PWM events.
What communication interfaces are available on the SM320F2812PGFMEPG4?
The SM320F2812PGFMEPG4 provides eCAN (ISO 11898-1 compliant), Multichannel Buffered Serial Port (McBSP), Serial Communications Interface (SCI), and Serial Peripheral Interface (SPI). The eCAN module supports 128 message objects and is essential for robust telemetry and command distribution in distributed spacecraft subsystems.
Is the SM320F2812PGFMEPG4 qualified for space applications?
Yes, the SM320F2812PGFMEPG4 is a Class V device per MIL-PRF-38535, fully qualified for space use with 100 krad(Si) TID tolerance, ELDRS-free design, and operation from –55°C to +125°C. It meets radiation, thermal, and reliability requirements for GEO, LEO, and deep-space missions.
SM320F2812PGFMEPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 176-LQFP
- Series:
- C2000™ C28x Fixed-Point
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- C28x
- Core Size:
- 32-Bit Single-Core
- Speed:
- 150MHz
- Connectivity:
- CANbus, EBI/EMI, McBSP, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 56
- Program Memory Size:
- 256KB (128K x 16)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 18K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.81V ~ 2V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SM320F2812PGFMEPG4 FAQ
1.How can I place an order for SM320F2812PGFMEPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM320F2812PGFMEPG4 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 SM320F2812PGFMEPG4 reliable?
The price and inventory of SM320F2812PGFMEPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM320F2812PGFMEPG4 is usually 5 days.
3.What payment methods are accepted for SM320F2812PGFMEPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM320F2812PGFMEPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM320F2812PGFMEPG4?
SM320F2812PGFMEPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM320F2812PGFMEPG4 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 SM320F2812PGFMEPG4?
For technical support, including SM320F2812PGFMEPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM320F2812PGFMEPG4 requirements.
6.How does Aetrix verify that SM320F2812PGFMEPG4 is sourced from the original manufacturer or authorized distributors?
All SM320F2812PGFMEPG4 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 SM320F2812PGFMEPG4 meets industry standards.
7.What is the process for return or replacement of SM320F2812PGFMEPG4?
All SM320F2812PGFMEPG4 units undergo pre-shipment inspection (PSI). If there is an issue with SM320F2812PGFMEPG4, 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 SM320F2812PGFMEPG4 part is unused and in its original packaging.
Return procedure for SM320F2812PGFMEPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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