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Texas Instruments TMS320F2812PGFS
- Part No.:
- TMS320F2812PGFS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
TMS320F2812PGFS.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:110
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Product details
Overview
TMS320F2812PGFS from Texas Instruments is a 150-MHz C28x-based digital signal processor optimized for real-time motor control and power electronics. It integrates 128K × 16 flash, dual 32-bit CPU timers, two Event Managers (EVA/EVB), 12-bit 16-channel ADC with 80-ns conversion time, eCAN, SPI, dual SCI, McBSP, and an external memory interface (XINTF) supporting >1M × 16 address space - deployed in industrial motor drives and EV powertrain inverters.
For engineers reviewing the TMS320F2812PGFS datasheet, TMS320F2812PGFS pinout, TMS320F2812PGFS application, or TMS320F2812PGFS equivalent, key selection criteria include its 176-pin LQFP package with XINTF support, 1.8-V/1.9-V core voltage at 135/150 MHz, 128K flash security lock, and dual event manager PWM/CAP/QEP resources for closed-loop servo and inverter timing control.
Technical Context
The TMS320F2812PGFS implements the TMS320C28x 32-bit CPU with Harvard architecture, atomic instructions, and 4M linear address space. Its clock system includes on-chip oscillator, PLL (configurable up to 150 MHz), and programmable XCLKOUT divider (×1, ÷2, ÷4).
Peripheral integration centers on deterministic real-time control: two independent Event Managers provide 16 PWM outputs, 6 capture inputs, and 2 QEP interfaces; the 12-bit ADC supports simultaneous sampling across two 8-channel multiplexers with dedicated sample-and-hold circuits and configurable conversion sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | TMS320C28x 32-bit fixed-point DSP running at 150 MHz (6.67-ns cycle time) |
| Flash Memory | 128K × 16 on-chip flash organized as four 8K + six 16K sectors; supports code security lock |
| ADC Resolution & Speed | 12-bit SAR ADC with 16 input channels, 80 ns conversion time (12.5 MSPS), dual S/H |
| External Interface | XINTF with 19-bit address (XA[0–18]), 16-bit data (XD[0–15]), three chip selects, and programmable wait states |
| Package & Pins | 176-pin LQFP (PGF), 24.0 mm × 24.0 mm body, 0.5-mm pitch; supports 56 GPIOs with muxed peripherals |
| Operating Voltage | 1.8-V core @ 135 MHz or 1.9-V core @ 150 MHz; 3.3-V I/O; –40°C to 125°C (S-grade) |
| Security | 128-bit password-protected code-security module locking flash, OTP, and L0/L1 SARAM |
Pinout & Package
Package: 176-pin Low-Profile Quad Flatpack (LQFP), PGF variant, 24.0 mm × 24.0 mm body, 0.5-mm pitch, exposed thermal pad (non-electrical). Pin 1 located at top-left corner (marked dot); pin numbering follows standard counter-clockwise LQFP convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XA[0]–XA[18] | XINTF Address Bus | 19-bit multiplexed address lines for external memory zones 0–7; enables >1M × 16 addressing |
| XD[0]–XD[15] | XINTF Data Bus | 16-bit bidirectional data bus with internal pull-up; supports burst and non-burst transfers |
| XZCS0AND1, XZCS2, XZCS6AND7 | Chip Select Outputs | Active-low zone select signals; XZCS0AND1 covers Zones 0/1, XZCS2 covers Zone 2, XZCS6AND7 covers Zones 6/7 |
| XRD, XWE, XR/W | Control Strobes | Active-low read/write strobes; XR/W indicates cycle type (high = read, low = write); mutually exclusive operation |
| XREADY | Asynchronous Ready Input | External peripheral handshake signal; extends XINTF access cycles synchronously or asynchronously |
| XHOLD / XHOLDA | Bus Arbitration | XHOLD requests external bus ownership release; XHOLDA confirms high-impedance bus state for external masters |
Key Features
| Feature | Design Value |
|---|---|
| Dual Event Managers (EVA/EVB) | Each provides 8 PWM outputs, 6 capture inputs, 2 QEP interfaces, and dead-band generation - enabling dual-motor or 3-phase inverter + auxiliary control |
| 12-Bit ADC with Dual S/H | Simultaneous sampling of two analog inputs (e.g., phase currents) with <80-ns conversion latency - critical for field-oriented control loop timing |
| 128K Flash with Security Lock | Hardware-enforced 128-bit password protection prevents firmware extraction and unauthorized flash reprogramming - meets industrial IP protection requirements |
| Peripheral Interrupt Expansion (PIE) | 45-channel vectorized interrupt controller with 12-cycle latency; routes eCAN, ADC, timer, and GPIO interrupts without CPU polling overhead |
| External Memory Interface (XINTF) | Configurable timing per zone (lead/active/trail), programmable wait states, and 3 chip selects - supports FPGA co-processing or extended lookup tables |
| Low-Power Modes | IDLE, STANDBY, HALT modes with individual peripheral clock gating - reduces active current to <1 mA while preserving RAM and register context |
Applications
| Industrial Motor Drives | EV/HEV Powertrain Inverters |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM/IM motors in HVAC compressors and CNC spindles. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with <100-ns jitter, and synchronized current sensing via dual ADC S/H. Use Value: Enables <1-µs current loop update rates and sub-degree rotor position resolution using integrated QEP and CAP modules. |
Use Scenario: Torque and speed control of traction inverters in battery electric vehicles with ISO 26262 functional safety considerations. IC Role / Device Role / Timing Role: Primary controller managing gate driver timing, DC-link voltage monitoring, fault response (via CxTRIP inputs), and CAN-based vehicle network communication. Use Value: Integrated eCAN, hardware trip zones (C1TRIP–C6TRIP), and 125°C-rated operation support ASIL-B–capable inverter designs. |
| Solar Microinverters | Grid-Tied Energy Storage Systems |
Use Scenario: MPPT and grid-synchronization control in single-phase microinverters interfacing rooftop PV panels. IC Role / Device Role / Timing Role: High-frequency PWM generation (up to 100 kHz), precise grid-phase tracking via SCI UART + external PLL, and isolation-coupled ADC sampling. Use Value: 150-MHz CPU delivers >20-kHz control loop bandwidth; XINTF enables external EEPROM storage of calibration coefficients and firmware updates. |
Use Scenario: Bi-directional AC/DC and DC/DC converter control in residential battery storage systems with anti-islanding detection. IC Role / Device Role / Timing Role: Coordinating dual converters (grid-tie + battery), executing harmonic compensation algorithms, and managing thermal derating via ADC temperature channels. Use Value: Dual SCI ports enable independent Modbus RTU (grid) and CAN (battery BMS) communication; 128K flash stores multiple firmware images for OTA rollback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital signal processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F28335PGFA | Floating-point C28x CPU (200 MHz), 512K flash, dual 12-bit ADCs (16 ch each), CLA accelerator, USB, no XINTF | Higher computational throughput for complex observers/estimators; lacks external memory interface for large LUTs or FPGA offload | Select when floating-point math, faster ADC throughput, or CLA-accelerated control loops outweigh need for external memory expansion |
| TMS320F280049CPMHT | C28x CPU (100 MHz), 256K flash, 12-bit 16-ch ADC (4-MSPS), enhanced PWM (trip zones, window comparators), no XINTF | Optimized for cost-sensitive, high-volume motor drives; lower max frequency but superior PWM fault handling and integrated analog comparators | Select for new designs prioritizing integrated protection features, smaller footprint (64-pin LQFP), and reduced BOM count over legacy XINTF compatibility |
Compared with TMS320F28335PGFA and TMS320F280049CPMHT, the TMS320F2812PGFS uniquely retains the XINTF for external memory expansion and maintains full pin compatibility with legacy F281x-based motor control boards - making it the only option for drop-in replacement in existing 176-pin LQFP designs requiring >128K code space or FPGA co-processing.
Availability
TMS320F2812PGFS is available at Aetrix Electronics and suitable for industrial motor drives, EV/HEV powertrain inverters, and solar microinverters requiring stable component supply across extended product lifecycles.
Supply support for TMS320F2812PGFS 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 connectivity technologies with over 90 years of innovation in industrial, automotive, and power electronics.
The TMS320F281x series was designed specifically for high-precision, real-time digital control in motor drives, power converters, and renewable energy systems - emphasizing deterministic interrupt latency, integrated analog front-ends, and robust packaging for harsh environments.
FAQ
What is the maximum operating frequency and core voltage specification for the TMS320F2812PGFS?
The TMS320F2812PGFS operates at a maximum CPU frequency of 150 MHz with a 1.9-V core supply voltage. At 135 MHz, it supports a 1.8-V core supply. Both configurations maintain full functionality of all peripherals including the 12-bit ADC, eCAN, and XINTF. The 3.3-V I/O voltage remains constant across both core voltage modes, ensuring compatibility with standard logic interfaces.
Does the TMS320F2812PGFS include an external memory interface, and which packages support it?
Yes, the TMS320F2812PGFS includes the External Interface (XINTF) supporting over 1M × 16 address space, programmable wait states, and three chip selects. This feature is exclusive to the F2812 device and is implemented in both the 176-pin PGF (TMS320F2812PGFS) and 179-ball GHH/ZHH BGA packages. The F2810/F2811 variants do not include XINTF.
How does the code-security module function on the TMS320F2812PGFS?
The TMS320F2812PGFS implements a 128-bit password-protected code-security module that locks access to on-chip flash, OTP ROM, and L0/L1 SARAM. Once enabled, unauthorized read or erase operations trigger a security violation reset. The module prevents firmware reverse-engineering and protects intellectual property in production units - a requirement for industrial and automotive deployments.
What ADC performance characteristics are guaranteed for the TMS320F2812PGFS?
The TMS320F2812PGFS guarantees a 12-bit SAR ADC with 16 input channels, 80-ns conversion time (12.5 MSPS), and dual sample-and-hold circuits. It supports both single and simultaneous conversions across two 8-channel multiplexers. Integral nonlinearity is ±1 LSB, and the ADC reference is internally buffered with AVDDREFBG/AVSSREFBG pins for stable 3.0-V reference generation.
Which communication peripherals are integrated into the TMS320F2812PGFS?
The TMS320F2812PGFS integrates Serial Peripheral Interface (SPI), two Serial Communications Interfaces (SCI-A and SCI-B) compatible with standard UART protocols, Enhanced Controller Area Network (eCAN) compliant with ISO 11898-1, and Multichannel Buffered Serial Port (McBSP) supporting TI and I2S audio formats. All are accessible via dedicated pins in the 176-pin PGF package.
TMS320F2812PGFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 176-LQFP
- Series:
- C2000™ C28x Fixed-Point
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320F2812PGFS FAQ
1.How can I place an order for TMS320F2812PGFS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320F2812PGFS 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 TMS320F2812PGFS reliable?
The price and inventory of TMS320F2812PGFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320F2812PGFS is usually 5 days.
3.What payment methods are accepted for TMS320F2812PGFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320F2812PGFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320F2812PGFS?
TMS320F2812PGFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320F2812PGFS 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 TMS320F2812PGFS?
For technical support, including TMS320F2812PGFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320F2812PGFS requirements.
6.How does Aetrix verify that TMS320F2812PGFS is sourced from the original manufacturer or authorized distributors?
All TMS320F2812PGFS 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 TMS320F2812PGFS meets industry standards.
7.What is the process for return or replacement of TMS320F2812PGFS?
All TMS320F2812PGFS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320F2812PGFS, 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 TMS320F2812PGFS part is unused and in its original packaging.
Return procedure for TMS320F2812PGFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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