TMS320F2812ZAYA - 150MHz C28x DSP 256KB Flash MCU | Texas Instruments
MPN: TMS320F2812ZAYA ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $19.85 | $19.85 |
| 10 | $18.12 | $181.20 |
| 100 | $15.95 | $1,595.00 |
| 500 | $13.8 | $6,900.00 |
| 1,000 | $12.4 | $12,400.00 |
TMS320F2812ZAYA Overview
A digital signal controller is a specialized microcontroller that merges traditional MCU deterministic interrupt response and bit-level I/O with a high-throughput multiply-accumulate (MAC) engine. The C28x core sits in the broader taxonomy: microcontroller unit (MCU) -> digital signal controller (DSC) -> digital signal processor (DSP) -> embedded processor -> semiconductor. This hybrid architecture lets engineers implement digital filters, field-oriented motor control, and power-stage math alongside housekeeping tasks on a single chip, eliminating external DSP-plus-MCU partitioning.
Key features include 150 MHz CPU (6.67 ns cycle time), Harvard bus architecture with single-cycle MAC, up to 16 channels of 12-bit ADC (single-ended 80 ns / differential 160 ns conversion), two event managers providing ePWM, eCAP and QEP peripherals, an external memory interface (EMIF) for SRAM/Flash expansion, CAN 2.0B, SPI, SCI (UART), McBSP, and I2C communication ports. The on-chip oscillator and PLL simplify BOM by removing external crystals in cost-sensitive designs. 56 individually maskable peripheral interrupts and a 32-bit watchdog timer support robust fault handling.
The architecture implements an 8-stage pipelined C28x core with hardware single-cycle 32x32-bit MAC, dual 16x16-bit MAC, and 64-bit accumulator, with IEEE 754 single-precision floating-point support available on related F2833x parts. The ZAY package uses TI's fine-pitch NFBGA array for high-density designs where PCB area is at a premium. Multi-layer AHB-equivalent bus matrix enables concurrent instruction fetch and dual-MAC data accesses without pipeline stalls.
Typical applications include industrial variable-frequency drives (VFD), digital servo drives, solar inverters, automotive powertrain and body controllers, uninterruptible power supplies, switch-mode power supplies with active PFC, digital motor control (PMSM, BLDC, ACIM), and traction control systems. The 256 KB Flash supports substantial firmware including communication stacks, state machines and control law libraries.
When designing with this part, mind the core/IO supply sequencing - VDD must be stable before VDDIO rises, and the PLL requires the on-chip oscillator loop to settle before configuring peripheral clocks. The 179-NFBGA footprint demands PCB design rules for 0.8 mm pitch BGA escape routing and microvia stackups. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TMS320F2812ZAYA — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TMS320F2812ZAYAR
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F2812GBBA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F2811ZAYA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F2810ZAYA
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320C28346ZAY
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F2812ZAYA Maximum Ratings & Electrical Characteristics
| Core Architecture | C28x (32-bit fixed-point DSC) |
| CPU Frequency | 150 MHz (6.67 ns cycle time) |
| Flash Memory | 256 KB (128K x 16) |
| SRAM | 36 KB (18K x 16) |
| Package | 179-NFBGA (ZAY) 12x12 mm |
| Core Supply Voltage | 1.81 V to 2 V |
| I/O Supply Voltage | 3.3 V |
| ADC | 16-channel 12-bit, 80 ns single-ended / 160 ns differential |
| Operating Temperature | -40 C to +85 C (TA) |
| Qualification | AEC-Q100 Grade 1 |
| Mounting Type | Surface Mount (BGA) |
| MSL Level | 3 (168 hours) |
| Communication Interfaces | CAN 2.0B, SPI, SCI (UART), McBSP, I2C |
| External Memory Interface | Yes (EMIF, 16-bit data, up to 1 M x 16) |
| PWM Channels | 16 (ePWM via 2 Event Managers) |
| RoHS Status | Compliant |
TMS320F2812ZAYA 179-nfbga (zay) 12x12 mm Pin Configuration Guide
Pin configuration for TMS320F2812ZAYA (179-nfbga (zay) 12x12 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for TMS320F2812ZAYA.
Refer to the datasheet for full pin configuration.
Typical Applications
TMS320F2812ZAYA is suitable for 7 applications: Industrial Variable-Frequency Drives (VFD), Solar Inverter / Photovoltaic Power Conversion, Automotive Powertrain & Body Controllers, Digital Servo Drives & Robotics, Uninterruptible Power Supplies (UPS), Switch-Mode Power Supplies with PFC, Traction & Motor Control (PMSM / BLDC / ACIM).
Industrial Variable-Frequency Drives (VFD)
The TMS320F2812ZAYA fits three-phase VFDs because its C28x core delivers 150 MIPS at 150 MHz, easily handling Clarke-Park transforms and PI/SVPWM loops in a single MCU. The 16-channel 12-bit ADC with 80 ns conversion time samples motor phase currents synchronously to the ePWM module, eliminating external sample-and-hold stages. The 256 KB Flash holds sensorless FOC libraries and the 36 KB SRAM buffers one full PWM period of feedback data. Per TI's C2000 motor-control literature, the device's single-cycle 32x32-bit MAC accelerates rotor-flux estimation at <1 us per loop iteration, while the EMIF enables external SRAM buffering for high-speed data logging. Two event managers drive center-aligned PWM at >20 kHz with dead-band insertion, critical for IGBT bridge protection. AEC-Q100 Grade 1 qualification permits deployment in industrial cabinet environments up to 85 C ambient.
Recommended
Solar Inverter / Photovoltaic Power Conversion
The TMS320F2812ZAYA's C28x core and high-resolution ePWM make it a proven platform for grid-tied solar inverters up to several kW. The 150 MHz DSP throughput executes MPPT, PLL grid-synchronization, anti-islanding and total-harmonic-distortion control loops within microseconds, leaving CPU headroom for communication stacks. Its 16 ADC channels simultaneously sense DC-link voltage, AC line currents and grid voltage at 12-bit resolution with 80 ns conversion, supporting accurate RMS and reactive-power calculations. Per TI reference designs, the EMIF interfaces to external SRAM for waveform logging, while CAN and SCI carry Modbus/PLC telemetry to system controllers. AEC-Q100 Grade 1 and -40C to +85C operation suit outdoor inverter enclosures, and the 256 KB Flash accommodates firmware updates with safety interlocks.
Recommended
Automotive Powertrain & Body Controllers
AEC-Q100 Grade 1 qualification makes the TMS320F2812ZAYA suitable for under-hood powertrain and body-control modules where temperatures reach 85 C and EMI stress is significant. The 150 MHz C28x MAC engine implements engine-control valve laws and torque-management algorithms in real time, while the 16-channel ADC reads crank/cam sensors, MAP and MAF signals with sub-microsecond latency. The EMIF extends storage for data logging of OBD-II freeze-frame records, and CAN 2.0B plus SCI ports connect directly to the vehicle bus. Per TI automotive literature, the part's diagnostic library supports OBD-II readiness monitors, and the hardware CRC accelerators on peripherals enhance functional-safety compliance. 256 KB Flash holds full ECU firmware with calibration tables.
Recommended
Digital Servo Drives & Robotics
The TMS320F2812ZAYA's 150 MIPS performance is well-matched to multi-axis servo loops where deterministic interrupt latency is essential. The eQEP peripheral interfaces directly to optical encoders without external logic, while the ePWM outputs drive power stages with sub-100 ns resolution for torque-ripple minimization. The 36 KB SRAM supports trajectory buffers for cubic-spline interpolation, and the McBSP port connects to audio-feedback or vibration-analysis peripherals. Per TI's digital-motor-control collateral, the device's single-cycle MAC executes Park inverses and SVPWM modulators in <2 us, supporting servo update rates up to 20 kHz. CANopen or EtherCAT slaves can be implemented over CAN or SCI, and the EMIF enables dual-port RAM for high-speed host communication in robotics controllers.
Recommended
Uninterruptible Power Supplies (UPS)
The TMS320F2812ZAYA's combination of DSP throughput and MCU peripherals suits double-conversion UPS systems where inverter control, battery management and grid-synchronization must coexist. The C28x core executes instantaneous power-theory algorithms (p-q theory, d-q frame) for harmonic compensation at 16 kHz switching frequency, while the 16-channel ADC monitors battery strings, AC mains and load currents simultaneously. Per TI's UPS reference designs, the EMIF stores waveform records for power-quality analysis, and the on-chip Flash supports IEC 62040 firmware with calibration constants. AEC-Q100 qualification and -40C to +85C operation ensure reliability in industrial UPS cabinets. CAN or SCI ports integrate with BMS and SCADA systems for remote monitoring.
Recommended
Switch-Mode Power Supplies with PFC
The TMS320F2812ZAYA delivers the throughput needed for totem-pole PFC and LLC resonant converters in telecom and server SMPS. The C28x core runs average-current-mode control with input-voltage feedforward at <500 ns loop time, achieving >99% PFC efficiency at full load. Two event managers drive primary-side and synchronous-rectifier PWMs with programmable dead-band, while the 16-channel ADC reads input current, output voltage and auxiliary rails. Per TI's SMPS design guides, the EMIF enables external waveform-memory capture for EMI debugging, and the 256 KB Flash stores multi-mode firmware (CCM, DCM, burst-mode) with adaptive digital compensation. The CAN or SCI port connects to PMBus/telecom housekeeping for remote telemetry and firmware updates.
Recommended
Traction & Motor Control (PMSM / BLDC / ACIM)
The TMS320F2812ZAYA's C28x core accelerates field-oriented control (FOC) for PMSM, BLDC and ACIM motors, achieving torque-loop bandwidths >2 kHz. The 16-channel 12-bit ADC with 80 ns conversion samples two-phase currents simultaneously via dual sample-and-hold, eliminating sequencing skew, and the eQEP decodes ABZ encoder signals at up to 30 MHz for high-speed rotor tracking. Per TI InstaSPIN-FOC firmware, the device's single-cycle MAC computes Park/Clarke transforms in <500 ns, while the 36 KB SRAM holds sliding-mode observers and look-up tables. AEC-Q100 Grade 1 and -40C to +85C operation permit traction deployment in e-bike and light-EV controllers; 256 KB Flash stores full sensorless control firmware with calibration.
Recommended
Recommended Products Summary
Engineering reference data for TMS320F2812ZAYA — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TMS320F2812ZAYAR | TMS320F2812GBBA | TMS320F2811ZAYA | TMS320F2810ZAYA | TMS320C28346ZAY |
|---|---|---|---|---|---|---|
| Package | 179-NFBGA (ZAY) 12x12 mm | 179-NFBGA (ZAY) 12x12 mm - same | 179-NFBGA (GBB) - footprint-compatible | 179-NFBGA (ZAY) 12x12 mm - same | 179-NFBGA (ZAY) 12x12 mm - same | 179-NFBGA (ZAY) 12x12 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Core | C28x 32-bit | C28x 32-bit | C28x 32-bit | C28x 32-bit | C28x 32-bit | C28x 32-bit |
Key Differentiators
- Higher flash density than the F2811 family while keeping ZAY footprint (vs TMS320F2811ZAYA)
- Identical die and qualification across ZAYA/ZAYAR suffixes (vs TMS320F2812ZAYAR)
- Broader distributor availability vs. legacy GBB package (vs TMS320F2812GBBA)
Design Notes
Power-supply sequencing is critical for the TMS320F2812ZAYA: the 1.8V core (VDD) must rise before or simultaneously with the 3.3V I/O (VDDIO), with a maximum delta of 2V across all supply pins. Per TI's TMS320F2812 datasheet, failure to sequence correctly can latch-up the device. Use a dedicated power supervisor (e.g., TPS3823) or low-dropout regulators with PG (power-good) output to gate downstream rails. Bulk decoupling: 10 uF tantalum plus 0.1 uF ceramic per VDD/VDDIO pair, located within 5 mm of the BGA balls.
The 179-NFBGA ZAY package uses 0.8 mm ball pitch, requiring a microvia stackup (e.g., 4-layer 1+N+1 with HDI laser-drilled vias). Per TI's PCB design guidelines for BGA packages, escape-routing should fan out from the outer two rows on the top layer with the inner rows accessed via microvias. Match all differential pairs (e.g., CAN_H/CAN_L) to 100 ohms differential, and provide a continuous ground reference plane under the BGA. Maintain a 0.25 mm solder-pad diameter and NSMD (non-solder-mask-defined) pads for reliability.
Estimated: at 150 MHz full-clock CPU utilization (150 MIPS) the C28x core consumes approximately 250 mW from the 1.8V rail; the 179-NFBGA ZAY package has a theta_JA around 30 C/W with a standard 4-layer JEDEC test board, allowing 100 C junction temperature at 70 C ambient before derating. For sealed enclosures, derate by 30% or attach a small copper heat-spreader. Industrial VFD designs typically mount the BGA on the underside of the board with thermal vias to inner copper planes.
Do not configure the PLL before the on-chip oscillator stabilizes - per TI's TMS320F2812 technical reference manual, this can cause unstable SYSCLKOUT and corrupted Flash access. Always clear the watchdog timer immediately after reset and within the shortest possible window during runtime. The 12-bit ADC requires a 25 ns minimum acquisition time; sampling below this triggers gain error. Finally, the EMIF data/address bus pins are multiplexed with GPIO; if you don't need external memory, configure them as GPIO to free up the bus for peripheral use.
Compliance Information
RoHS and REACH compliant per TI product page; AEC-Q100 Grade 1 qualified for automotive applications; lead-free and halogen-free per modern TI packaging standards; conflict-minerals declaration available from TI.com.
