Texas Instruments TMS320R2812GHHS

Overview

TMS320R2812GHHS 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 operates at 150 MHz, integrates 128 KB on-chip flash memory, 18 KB RAM, dual event managers (EVA/EVB), a 12-bit 16-channel ADC with 80-ns conversion time, and an enhanced CAN (eCAN) module. It targets industrial inverters, servo drives, and digital power supplies requiring deterministic interrupt response and high-resolution PWM generation.

For engineers reviewing the TMS320R2812GHHS datasheet, TMS320R2812GHHS pinout, TMS320R2812GHHS application, or TMS320R2812GHHS equivalent, key selection criteria include its 179-ball MicroStar BGA (ZHH/GHH) package, 150-MHz SYSCLKOUT timing, external interface (XINTF) support for parallel memory expansion, integrated quadrature encoder pulse (QEP) and programmable dead-band logic, and temperature range of –40°C to 125°C.

Technical Context

The TMS320R2812GHHS implements a Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. Its C28x CPU includes a 32×32-bit multiplier, 32-bit ALU, and barrel shifter, supporting single-cycle 32-bit multiply-accumulate (MAC) operations essential for fast control loop execution.

It features two independent Event Manager modules (EVA and EVB), each with three GP timers, six full-compare units, capture units, QEP circuits, and PWM waveform generators with double-update capability. The device also integrates an eCAN 2.0B-compliant controller, McBSP, SCI, SPI, and GPIO multiplexing - all synchronized to a unified peripheral clock domain derived from the PLL.

Key Specifications

Pinout & Package

The TMS320R2812GHHS is housed in a 179-ball, 12 × 12 mm, 0.8-mm pitch MicroStar BGA package (ZHH/GHH). Ball pitch and mechanical dimensions comply with TI S-PBGA-N179 standard; thermal pad on underside requires solder paste stencil design per TI PCB layout guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with TMS320R2812GHHS, the TMS320F2812PGFA offers identical functionality in LQFP form for prototyping or low-volume production, while the TMS320F28335PGFA delivers architectural upgrades - including floating-point unit and enhanced PWM - making it suitable for higher-complexity, safety-critical motor and power control systems.

Availability

TMS320R2812GHHS is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, solar inverters, and electric vehicle onboard chargers requiring stable component supply and long-term industrial lifecycle support.

Supply support for TMS320R2812GHHS 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 company specializing in analog, embedded processing, and connectivity technologies, with leadership in industrial, automotive, and power management solutions.

The TMS320R2812GHHS belongs to the C2000™ real-time microcontroller product line, designed specifically for digital control of power electronics, motor drives, and energy systems demanding high precision, low latency, and integrated analog/peripheral subsystems.

FAQ

What is the maximum operating frequency of the TMS320R2812GHHS?

The TMS320R2812GHHS achieves a maximum system clock frequency of 150 MHz (SYSCLKOUT), derived from its internal PLL that multiplies the input XCLKIN (1–20 MHz) by factors of 1–15. This enables deterministic execution of control loops within sub-microsecond intervals, critical for high-speed motor commutation and digital power regulation. All timing specifications in the SPRS257C datasheet assume operation at this rated frequency.

Does the TMS320R2812GHHS support external memory expansion?

Yes, the TMS320R2812GHHS includes a dedicated External Interface (XINTF) module supporting 16-bit parallel bus operation with up to 1 MB of addressable space. It allows direct connection to external SRAM, flash, or FPGA devices with configurable wait states, asynchronous/synchronous ready signaling, and programmable timing registers - a feature exclusive to the R2812 (not present in R2811).

What ADC capabilities does the TMS320R2812GHHS provide?

The TMS320R2812GHHS integrates a 12-bit, 16-channel analog-to-digital converter with 80-ns conversion time and dual sampling modes: sequential (single-channel) and simultaneous (dual-channel). It supports hardware-triggered conversions via EPWM, QEP, or timer events, and includes internal 2.5-V reference (ADCREFM) and configurable sample-and-hold acquisition windows - enabling precise current/voltage sensing in motor and power applications.

Is the TMS320R2812GHHS pin-compatible with other C28x devices?

No, the TMS320R2812GHHS is not pin-compatible with other C28x family members due to its unique 179-ball ZHH/GHH MicroStar BGA footprint. While functionally aligned with the TMS320F2812 (which uses 176-pin LQFP), the GHHS variant requires distinct PCB layout, thermal pad design, and BGA reflow profile - confirmed by TI's mechanical drawings in Section 8 of SPRS257C.

What communication interfaces are integrated into the TMS320R2812GHHS?

The TMS320R2812GHHS integrates four serial communication peripherals: enhanced Controller Area Network (eCAN) 2.0B-compliant module, Multichannel Buffered Serial Port (McBSP), Serial Communications Interface (SCI), and Serial Peripheral Interface (SPI). These support industrial fieldbus connectivity, audio/data streaming, UART-based debugging, and sensor/flash memory interfacing - all independently clocked and interrupt-capable.