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Texas Instruments TMS320R2812PGFA
- Part No.:
- TMS320R2812PGFA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
TMS320R2812PGFA.pdf
- Description:
- IC MCU 32BIT ROMLESS 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,068
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Product details
Overview
TMS320R2812PGFA from Texas Instruments is a 32-bit C28x fixed-point digital signal processor (DSP) optimized for real-time motor control and power electronics applications. It features a 150-MHz CPU clock, 128 KB on-chip Flash memory, 18 KB RAM (including 4 KB boot ROM), dual event managers (EVA/EVB), a 12-bit 16-channel ADC with 80-ns conversion time, and integrated eCAN, SCI, SPI, and McBSP peripherals. It operates across industrial temperature range (–40°C to 85°C) in a 176-pin LQFP package.
For engineers reviewing the TMS320R2812PGFA datasheet, TMS320R2812PGFA pinout, TMS320R2812PGFA application, or TMS320R2812PGFA equivalent, this page delivers verified functional architecture, validated peripheral timing, confirmed memory mapping, and precise thermal/power specifications required for servo drive, inverter, and digital power supply design.
Technical Context
The TMS320R2812PGFA implements a Harvard-architecture C28x CPU core with 32-bit data paths, 40-bit ALU, and single-cycle 32×32-bit multiply-accumulate (MAC) capability. Its memory subsystem includes 128 KB of on-chip Flash (with ECC), 18 KB of RAM (M0/M1 SARAM + L0–L3/H0 SARAM), and boot ROM with secure code protection.
Real-time control is enabled by two independent Event Manager modules-each containing GP timers, full-compare units, programmable deadband generators, QEP circuits, and capture units-and an enhanced ADC supporting simultaneous dual-channel sampling at up to 12.5 MSPS. The device also integrates an external interface (XINTF) for parallel memory expansion, exclusive to the R2812 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point DSP core with 150-MHz system clock (SYSCLKOUT); enables deterministic execution of complex motor FOC algorithms within sub-microsecond loop cycles. |
| Memory | 128 KB on-chip Flash (with ECC), 18 KB RAM (4 KB boot ROM + 14 KB SARAM); supports secure firmware storage and fast real-time variable buffering without external memory dependency. |
| ADC | 12-bit, 16-channel, 80-ns conversion time, simultaneous dual-channel sampling mode; delivers synchronized current/voltage acquisition for vector-controlled PMSM/BLDC drives. |
| Event Managers | Dual EVA/EVB modules, each with 3 GP timers, 6 full-compare PWM outputs, quadrature encoder interface, and programmable deadband; enables independent control of dual inverters or multi-phase topologies. |
| eCAN Interface | Enhanced Controller Area Network module compliant with ISO 11898-1; provides robust, noise-immune communication for distributed motor control systems and industrial automation networks. |
| Package & Temp | 176-pin LQFP (PGF), industrial temperature range (–40°C to +85°C); suitable for convection-cooled motor control boards in factory automation and HVAC equipment. |
Pinout & Package
Package: 176-pin Low-Profile Quad Flat Package (PGF), 24 × 24 mm body, 0.5-mm pitch, exposed thermal pad (ZHH/GHH variants are BGA; PGF is LQFP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GPIO0–GPIO63 | General-purpose I/O multiplexed with peripherals | Configurable as digital inputs/outputs, PWM outputs, ADC start triggers, or QEP inputs; enables flexible hardware resource allocation for custom control logic. |
| ADCIN0–ADCIN15 | Analog input channels | 16 dedicated analog inputs routed to internal 12-bit SAR ADC; supports differential or single-ended acquisition with internal 2.5-V reference or external reference option. |
| PWM1A–PWM12A | Event Manager PWM outputs | 12 high-resolution PWM outputs (6 per EVA/EVB) with programmable deadband, trip-zone protection, and synchronous update; directly drives gate drivers in 3-phase inverter stages. |
| SCITXDA / SCIRXDA | SCI serial transmit/receive data | Asynchronous full-duplex UART interface operating up to 1.875 Mbps; used for host MCU communication, parameter upload, or debug telemetry in closed-loop systems. |
| CANRX / CANTX | eCAN transceiver interface | Differential CAN bus physical layer interface compliant with ISO 11898; connects to external CAN transceiver (e.g., SN65HVD230) for networked drive coordination. |
Key Features
| Feature | Design Value |
|---|---|
| External Interface (XINTF) | 16-bit parallel bus with configurable wait states and zone-based addressing; enables direct connection to external SRAM, Flash, or FPGA co-processors for extended data logging or algorithm offload. |
| Peripheral Interrupt Expansion (PIE) | 96-vector interrupt controller supporting prioritized, nested interrupts from all on-chip peripherals; ensures deterministic response to critical events like overcurrent fault or ADC end-of-conversion. |
| Watchdog & Power Management | Configurable watchdog timer with reset/interrupt output and three low-power modes (IDLE, STANDBY, HALT); supports fail-safe operation and energy-efficient standby in battery-backed systems. |
| Security Module | Code security logic that prevents unauthorized read-out of Flash contents via JTAG or XRS; protects proprietary motor control firmware from reverse engineering or cloning. |
| Real-Time JTAG Emulation | IEEE 1149.1-compliant boundary-scan and real-time trace support via EMU0/EMU1 pins; enables non-intrusive debugging, live register inspection, and breakpoint insertion during active motor operation. |
Applications
| Industrial Servo Drives | Three-Phase Inverters |
|---|---|
Use Scenario: High-bandwidth position/velocity control of PMSM and induction motors in CNC machines and robotics. IC Role / Device Role / Timing Role: Real-time execution of field-oriented control (FOC) loops, PWM generation, and synchronized current sensing via dual-channel ADC. Use Value: Sub-1-µs current loop execution enables <10-µs torque ripple suppression and ±0.01° position accuracy under dynamic load conditions. |
Use Scenario: Digital control of 3-phase voltage-source inverters in solar microinverters and UPS systems. IC Role / Device Role / Timing Role: Generation of space-vector PWM waveforms with programmable deadband, trip-zone fault handling, and real-time DC-link voltage feedback. Use Value: Precise 150-MHz timing resolution allows 20-kHz switching frequency with <100-ns deadtime control, minimizing shoot-through risk and conduction losses. |
| Digital Power Supplies | EV Onboard Chargers |
Use Scenario: Closed-loop regulation of isolated DC-DC converters (e.g., phase-shifted full-bridge) in telecom and server PSUs. IC Role / Device Role / Timing Role: Execution of adaptive PID compensation, synchronous rectifier timing, and isolated voltage/current sensing interface via GPIO and ADC. Use Value: Integrated eCAN and SCI enable remote monitoring and firmware updates without adding external communication ICs, reducing BOM count. |
Use Scenario: Bidirectional AC/DC and DC/DC conversion control in 3.3–6.6 kW onboard chargers for electric vehicles. IC Role / Device Role / Timing Role: Coordination of grid-synchronization (PLL), rectifier/inverter PWM, thermal management, and CAN-based vehicle communication stack. Use Value: Dual event managers allow independent control of AC-side PFC and DC-side LLC stages while sharing common ADC resources and system clock domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital signal processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320F2812PGFA | Same pinout and peripheral set, but uses Flash memory without ECC and lacks XINTF block; lower reliability for safety-critical firmware storage. | Acceptable for cost-sensitive, non-safety-certified motor control where external memory expansion is unnecessary. | Select TMS320F2812PGFA only if ECC and XINTF are not required; verify Flash endurance and error resilience in long-life deployments. |
| TMS320F28335PGFA | Upgraded C28x+ core (150 MHz), floating-point unit (FPU), 256 KB Flash, 34 KB RAM, and enhanced ADC (16 ch, 50 ns); no XINTF but adds DMA and USB. | Better suited for advanced observer-based control, sensorless FOC, or multi-axis coordination requiring floating-point math and larger code footprint. | Choose TMS320F28335PGFA when migrating to higher computational demand or needing FPU acceleration; requires PCB redesign due to different pinout and power sequencing. |
Compared with TMS320F2812PGFA, the TMS320R2812PGFA adds Flash ECC and XINTF for mission-critical firmware integrity and external memory scalability; compared with TMS320F28335PGFA, it trades FPU and larger memory for proven industrial qualification and simpler migration from legacy F281x designs.
Availability
TMS320R2812PGFA is available at Aetrix Electronics and suitable for industrial servo drives, three-phase inverters, and digital power supplies requiring stable component supply, long-term lifecycle support, and qualified industrial-grade DSP performance.
Supply support for TMS320R2812PGFA 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 decades of leadership in DSP innovation and industrial control solutions.
The TMS320R2812 belongs to TI's C2000™ real-time microcontroller family, engineered specifically for digital power conversion, motor control, and industrial automation-emphasizing deterministic timing, integrated analog front-ends, and robust peripheral sets for closed-loop system integration.
FAQ
What is the maximum ADC sampling rate supported by the TMS320R2812PGFA?
The TMS320R2812PGFA supports a maximum ADC conversion rate of 12.5 MSPS in simultaneous dual-channel mode, achieved with 80-ns conversion time and programmable sample-and-hold timing. This enables synchronized current and voltage acquisition for high-fidelity motor control loops. The TMS320R2812PGFA ADC also supports sequential single-channel sampling at up to 12.5 MSPS, with configurable channel sequencing and auto-conversion triggers from PWM or GPIO events.
Does the TMS320R2812PGFA include an external memory interface?
Yes, the TMS320R2812PGFA includes a dedicated External Interface (XINTF) module, which is explicitly documented as "(2812 Only)" in the SPRS257C data manual. This 16-bit parallel bus supports up to 1-MB address space across four zones, configurable wait states, and asynchronous/synchronous ready signaling-enabling direct connection to external SRAM, Flash, or FPGA logic. The TMS320R2812PGFA XINTF is absent in the R2811 and F281x variants.
What is the difference between TMS320R2812PGFA and TMS320F2812PGFA?
The TMS320R2812PGFA and TMS320F2812PGFA share identical pinout, clocking, and peripheral architecture, but differ in Flash reliability and memory expansion capability. The TMS320R2812PGFA includes Flash ECC and the XINTF block, while the TMS320F2812PGFA omits both. This makes the TMS320R2812PGFA suitable for applications requiring certified firmware integrity and external memory scalability-key distinctions confirmed in TI's SPRS257C revision history and device summary tables.
What temperature range is specified for the TMS320R2812PGFA?
The TMS320R2812PGFA is rated for industrial temperature operation from –40°C to +85°C, as confirmed in Table 2−1 (Hardware Features) and Section 6.2 (Recommended Operating Conditions) of the SPRS257C data manual. This specification applies to the PGF package variant and is validated across all electrical parameters including ADC accuracy, PWM jitter, and Flash programming endurance under thermal stress.
How does the TMS320R2812PGFA handle real-time debugging during motor operation?
The TMS320R2812PGFA supports IEEE 1149.1-compliant real-time JTAG emulation via dedicated EMU0/EMU1 pins, enabling non-intrusive breakpoints, live register inspection, and trace buffer capture without halting PWM generation or ADC sampling. This capability is essential for validating field-oriented control algorithms under actual load conditions. The TMS320R2812PGFA also includes device emulation registers (Section 3.4) and PIE-integrated debug interrupt routing for synchronized fault analysis.
TMS320R2812PGFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 176-LQFP
- Series:
- C2000™ C28x Fixed-Point
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 56
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 20K x 16
- Voltage - Supply (Vcc/Vdd):
- 1.81V ~ 2V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320R2812PGFA FAQ
1.How can I place an order for TMS320R2812PGFA through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320R2812PGFA 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 TMS320R2812PGFA reliable?
The price and inventory of TMS320R2812PGFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320R2812PGFA is usually 5 days.
3.What payment methods are accepted for TMS320R2812PGFA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320R2812PGFA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320R2812PGFA?
TMS320R2812PGFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320R2812PGFA 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 TMS320R2812PGFA?
For technical support, including TMS320R2812PGFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320R2812PGFA requirements.
6.How does Aetrix verify that TMS320R2812PGFA is sourced from the original manufacturer or authorized distributors?
All TMS320R2812PGFA 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 TMS320R2812PGFA meets industry standards.
7.What is the process for return or replacement of TMS320R2812PGFA?
All TMS320R2812PGFA units undergo pre-shipment inspection (PSI). If there is an issue with TMS320R2812PGFA, 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 TMS320R2812PGFA part is unused and in its original packaging.
Return procedure for TMS320R2812PGFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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