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Texas Instruments TMS320R2812PGFS
- Part No.:
- TMS320R2812PGFS
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
TMS320R2812PGFS.pdf
- Description:
- IC MCU 32BIT ROMLESS 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
TMS320R2812PGFS from Texas Instruments is a 32-bit C28x fixed-point digital signal processor (DSP) with 150-MHz CPU clock, 128 KB on-chip flash memory, 18 KB RAM, integrated event manager (EVA/EVB), 12-bit 16-channel ADC with 80-ns conversion time, and external interface (XINTF) supporting up to 1-MB address space. It targets real-time motor control, digital power conversion, and industrial servo systems.
For engineers reviewing the TMS320R2812PGFS datasheet, TMS320R2812PGFS pinout, TMS320R2812PGFS application, or TMS320R2812PGFS equivalent, key selection criteria include its 176-pin LQFP (PGF) package, dual event managers for PWM generation, simultaneous sampling ADC mode, PLL-based clock system with 4×–15× multiplication, and XINTF timing compatibility with asynchronous SRAM and EPROM.
Technical Context
The TMS320R2812PGFS implements the C28x CPU core with Harvard bus architecture, 32-bit ALU, 32×32-bit MAC, and 32-bit barrel shifter. Its memory subsystem includes 128 KB of on-chip flash (with ECC), 18 KB of SARAM (M0/M1/L0–L3/H0), and boot ROM with secure code execution support.
Peripheral integration includes two independent event managers (EVA/EVB) each with three GP timers, six full-compare units, programmable deadband generators, QEP circuits, and capture units; plus eCAN, McBSP, SCI, SPI, and GPIO multiplexer supporting up to 56 configurable I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | C28x 32-bit fixed-point DSP core with 150-MHz maximum SYSCLKOUT - enables deterministic real-time loop execution in motor FOC and PFC algorithms. |
| Memory | 128 KB on-chip flash (with ECC), 18 KB RAM (M0/M1 + L0–L3/H0) - supports dual-code banking and fast interrupt response without external memory latency. |
| ADC | 12-bit, 16-channel, 80-ns conversion time, simultaneous/dual-channel sampling mode - meets <5-µs current-sensing requirements in three-phase inverters. |
| Event Manager | Dual EVA/EVB modules, each with 6 PWM outputs, quadrature encoder interface, and programmable deadband - enables full-bridge gate drive control with precise timing and fault protection. |
| External Interface | XINTF with 20-bit address / 16-bit data bus, 4-zone programmable wait-state control - interfaces directly to external SRAM, FPGA, or display controllers without glue logic. |
| Package & Temp | 176-pin LQFP (PGF), −40°C to 105°C operating temperature - suitable for industrial ambient conditions and PCB assembly with standard reflow profiles. |
| PLL Range | 4× to 15× multiplication of input clock (X1/X2 pins), 150-MHz output - allows flexible crystal or oscillator sourcing (e.g., 10 MHz crystal → 150 MHz SYSCLKOUT). |
Pinout & Package
176-pin Low-Profile Quad Flat Package (PGF), 24 × 24 mm body, 0.5-mm pitch, thermally enhanced exposed pad. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X1/X2 | Crystal oscillator input/output | Supports fundamental-mode quartz crystals (1–20 MHz) or external clock source; internal oscillator circuit eliminates need for external buffer. |
| CLKIN | External clock input | Accepts single-ended CMOS-level clock signal; used when bypassing internal oscillator for precision timing or jitter-sensitive applications. |
| GPIO0–GPIO55 | Configurable general-purpose I/O | Multiplexed with peripheral functions (PWM, CAP, QEP, SPI, CAN); software-selectable pullup/pulldown and qualifier filtering for noise immunity. |
| ADCINA0–ADCINA15 | Analog input channels | 16 single-ended analog inputs routed to 12-bit SAR ADC; internal reference (2.5 V) or external reference supported per Figure 4−5/4−6. |
| EPWM1A–EPWM6B | Enhanced PWM outputs | 12 dedicated PWM outputs (6 per event manager), with programmable deadband, trip-zone protection, and synchronous update - critical for isolated gate driver interfacing. |
| CANA/CANB | eCAN module transceiver interface | Differential CANH/CANL pins with built-in protocol controller; supports ISO 11898-1 compliant communication at up to 1 Mbps. |
Key Features
| Feature | Design Value |
|---|---|
| Real-time JTAG emulation | Fully IEEE 1149.1-compliant debug interface with hardware breakpoints, real-time trace, and background memory access - enables non-intrusive firmware validation in live motor control loops. |
| Peripheral Interrupt Expansion (PIE) | 96-vector interrupt map with 12 groups of 8 interrupts - decouples peripheral interrupt latency from CPU clock speed and enables prioritized response to ADC EOC, PWM TZ, or CAN RX events. |
| Security module | Code-security password lock for flash memory - prevents unauthorized read-out of firmware while allowing field updates via secure bootloader. |
| Low-power modes | IDLE, STANDBY, HALT with wake-up on XNMI, GPIO, or peripheral interrupt - reduces active current to 12 mA (typ.) at 150 MHz, extending thermal margin in enclosed drives. |
| Boot ROM with flash API | On-chip ROM containing flash programming routines and boot loader - eliminates need for external programmer; supports in-application programming (IAP) via SCI or SPI. |
Applications
| Industrial Motor Drives | Digital Power Supplies |
|---|---|
|
Use Scenario: Field-oriented control (FOC) of 3-phase PMSM/BLDC motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time execution of Park/Clarke transforms, PI current regulators, and space-vector PWM generation at ≤10-kHz switching frequency. Use Value: Integrated dual event managers deliver synchronized 12-PWM outputs with <100-ps skew, enabling precise phase-leg timing and minimizing torque ripple. |
Use Scenario: Digital control of isolated DC-DC converters (LLC, Phase-Shifted Full-Bridge) in telecom rectifiers and server PSUs. IC Role / Device Role / Timing Role: High-resolution voltage/current loop regulation using simultaneous ADC sampling and 150-MHz deterministic instruction cycle. Use Value: 80-ns ADC conversion + hardware-triggered PWM update ensures <2-µs total control loop latency - critical for stability under dynamic load transients. |
| Renewable Energy Inverters | Industrial PLC I/O Modules |
|
Use Scenario: Grid-tied solar string inverters requiring anti-islanding detection, MPPT, and reactive power control. IC Role / Device Role / Timing Role: Coordinating high-speed ADC acquisition (voltage/current/grid sync), eCAN communication with central controller, and isolation-safe PWM output. Use Value: On-chip eCAN module with message objects and transmit/receive FIFOs offloads CPU from protocol handling, freeing cycles for MPPT algorithm execution. |
Use Scenario: Distributed I/O expansion in modular PLC backplanes with analog input conditioning and digital output driving. IC Role / Device Role / Timing Role: Local intelligence node performing sensor linearization, filter processing, and deterministic cyclic data exchange over CANopen or Modbus TCP (via external PHY). Use Value: XINTF interface enables direct connection to external 512-KB SRAM for large configuration tables and historical data logging without DMA bottlenecks. |
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 C28x core, identical pinout and peripherals, but rated for −40°C to 85°C industrial temp range and uses older PGFA package variant. | Lacks extended temperature qualification; not qualified for 105°C ambient environments like motor drive enclosures. | Select TMS320F2812PGFA only for cost-sensitive, lower-ambient applications where extended temperature is unnecessary. |
| TMS320F28335PGFA | Floating-point C28x core, 150-MHz, 256 KB flash, 34 KB RAM, enhanced ADC (16 ch, 50 ns), and dual CAN - no XINTF interface. | Superior computational throughput and precision for complex observer-based control, but requires external memory interface redesign if replacing XINTF-dependent designs. | Choose TMS320F28335PGFA when migrating to floating-point math or higher ADC performance is required, and external memory is handled via EMIF or serial flash. |
Compared with TMS320R2812PGFS, the TMS320F2812PGFA offers identical functionality at lower temperature grade and cost, while the TMS320F28335PGFA delivers floating-point capability and faster ADC at the expense of XINTF - making the R2812PGFS optimal for legacy XINTF-based industrial systems needing 105°C operation.
Availability
TMS320R2812PGFS is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, renewable energy inverters, and PLC I/O modules requiring stable component supply across long production lifecycles.
Supply support for TMS320R2812PGFS 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 and real-time control ICs.
The TMS320R2812PGFS belongs to TI's C2000™ real-time microcontroller family, designed specifically for digital control of power electronics, motor drives, and industrial automation systems demanding deterministic timing and high analog integration.
FAQ
What is the maximum operating frequency of the TMS320R2812PGFS?
The TMS320R2812PGFS operates at a maximum CPU clock frequency of 150 MHz, achieved via its on-chip PLL configured for 4×–15× multiplication of an external crystal or clock source applied to the X1/X2 pins. This frequency is fully supported across the device's −40°C to 105°C operating temperature range and enables sub-microsecond interrupt latency for hard real-time control tasks.
Does the TMS320R2812PGFS support in-system programming of its flash memory?
Yes, the TMS320R2812PGFS supports in-system programming via its on-chip boot ROM, which contains flash API routines accessible through SCI, SPI, or parallel XINTF interfaces. This allows field firmware updates without requiring external programmers, and the security module permits password-protected write access to prevent unauthorized modification of the TMS320R2812PGFS flash contents.
How many PWM outputs does the TMS320R2812PGFS provide, and are they independently configurable?
The TMS320R2812PGFS provides 12 enhanced PWM outputs - six from Event Manager A (EPWM1A–EPWM3B) and six from Event Manager B (EPWM4A–EPWM6B). Each EPWM channel supports independent period, duty cycle, deadband, and trip-zone configuration, and both modules support synchronized update, phase-shifted operation, and asymmetric/symmetric waveform generation - essential for multi-phase inverter topologies.
Can the TMS320R2812PGFS interface directly with external SRAM or NOR flash memory?
Yes, the TMS320R2812PGFS integrates a dedicated External Interface (XINTF) with 20-bit address and 16-bit data bus, supporting up to 1-MB address space across four zones. It provides programmable wait-state control, strobe timing, and ready-signal handshaking - enabling direct, glueless connection to common asynchronous SRAM (e.g., IS61LV25616AL) and parallel NOR flash devices without external logic.
What ADC sampling modes are supported by the TMS320R2812PGFS, and what is the fastest conversion time?
The TMS320R2812PGFS supports sequential (single-channel) and simultaneous (dual-channel) sampling modes via its 12-bit, 16-channel SAR ADC. The fastest conversion time is 80 ns per sample, achievable in simultaneous mode when triggered by hardware events such as PWM timer overflow or external signal - enabling synchronized current sensing across multiple phases in motor control applications.
TMS320R2812PGFS 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
TMS320R2812PGFS FAQ
1.How can I place an order for TMS320R2812PGFS through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320R2812PGFS 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 TMS320R2812PGFS reliable?
The price and inventory of TMS320R2812PGFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320R2812PGFS is usually 5 days.
3.What payment methods are accepted for TMS320R2812PGFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320R2812PGFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320R2812PGFS?
TMS320R2812PGFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320R2812PGFS 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 TMS320R2812PGFS?
For technical support, including TMS320R2812PGFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320R2812PGFS requirements.
6.How does Aetrix verify that TMS320R2812PGFS is sourced from the original manufacturer or authorized distributors?
All TMS320R2812PGFS 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 TMS320R2812PGFS meets industry standards.
7.What is the process for return or replacement of TMS320R2812PGFS?
All TMS320R2812PGFS units undergo pre-shipment inspection (PSI). If there is an issue with TMS320R2812PGFS, 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 TMS320R2812PGFS part is unused and in its original packaging.
Return procedure for TMS320R2812PGFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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