TMS320C2811PBKA Texas Instruments Integrated Circuit (Quad Flat Packages) In Stock
The TMS320C2811PBKA is a 32-bit fixed-point digital signal controller from Texas Instruments running up to 150 MHz with on-chip ROM, dual-core bus architecture, and JTAG boundary scan. It also operates at 135 MHz from a 1.8 V supply, enabling low-power designs. Packaged in a 128-pin PQFP for high-density industrial and motor-control boards.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat Packages
- Pin Count
- 128
- Lifecycle
- OBSOLETE
- Datasheet
- TMS320C2811PBKA Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32-bit fixed-point DSP/DSC core clocked up to 150 MHz with dual internal bus architecture for high-throughput real-time control
- Flexible supply operation: full 150 MHz at core voltage or reduced 135 MHz at 1.8 V supply for power-sensitive applications
- 128-pin PQFP with JTAG boundary scan, enabling thorough board-level test and debug in complex industrial PCB assemblies
Applications
The TMS320C2811PBKA is purpose-built for real-time control tasks such as AC motor drives, digital power supplies, and servo controllers where 32-bit fixed-point arithmetic at 150 MHz provides the headroom for fast PID loops and complex modulation algorithms. Its on-chip ROM stores boot and math library routines, reducing external flash requirements in cost-sensitive industrial designs. The dual internal bus architecture allows simultaneous instruction fetches and data accesses, sustaining high throughput in demanding multi-axis motion control systems.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 1.8 SUPPLY AT 135MHZ |
| Barrel Shifter | NO |
| Bit Size | 32 |
| Boundary Scan | YES |
| Clock Frequency-Max | 150MHz |
| Format | FIXED POINT |
| Internal Bus Architecture | MULTIPLE |
| JESD-30 Code | S-PQFP-G128 |
| Low Power Mode | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP128,.64SQ,16 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Qualification Status | Not Qualified |
| RAM (words) | 18432 |
| Screening Level | TS 16949 |
| Supply Voltage-Max | 2V |
| Supply Voltage-Min | 1.81V |
| Supply Voltage-Nom | 1.9V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | DIGITAL SIGNAL PROCESSOR, OTHER |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.35 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMS320C2811PBKA:
Digital Signal Processor, 32-Bit Size, 0-Ext Bit, 150MHz, CMOS, PQFP128
Frequently Asked Questions
What is the maximum clock frequency of the TMS320C2811PBKA, and can it run at a lower supply voltage?
The TMS320C2811PBKA operates at up to 150 MHz at its nominal core voltage, and also runs at 135 MHz when powered from a 1.8 V supply. This dual-voltage flexibility lets designers choose between maximum throughput and reduced power dissipation in the same hardware platform, making it practical for battery-assisted industrial controllers or energy-efficient motor drives.
Which motor-control or power-conversion designs benefit most from TMS320C2811PBKA's 32-bit fixed-point DSC core?
The TMS320C2811PBKA is well suited for three-phase AC induction motor drives, BLDC servo controllers, and switch-mode power supply controllers that require fast PID loop execution well under 10 µs. At 150 MHz, a single 32-bit multiply-accumulate completes in one clock cycle (approximately 6.7 ns), giving the control loop ample margin to execute space-vector PWM modulation in real time alongside sensor sampling and fault protection routines.
How does the JTAG boundary scan on TMS320C2811PBKA simplify board-level testing?
The TMS320C2811PBKA includes a full IEEE 1149.1 JTAG boundary-scan interface across all 128 pins of the PQFP package. This allows a board-level tester to shift in test vectors and check interconnect continuity for all I/O lines without applying functional power, dramatically reducing the cost and time of manufacturing test. It also enables in-circuit programming and real-time debugger connections via standard 14-pin JTAG headers.
What package and pin count does TMS320C2811PBKA use, and what does that mean for PCB routing density?
The TMS320C2811PBKA is housed in a 128-pin Plastic Quad Flat Package (PQFP-128, JESD-30 code S-PQFP-G128) with leads on all four sides. A 128-pin PQFP typically uses 0.5 mm lead pitch, so routing 128 signals requires careful impedance-controlled PCB layout with at least 4 signal layers to avoid congestion near the package periphery, especially for high-speed 150 MHz clock and data lines.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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