TMS320C50PQA57 - 57MHz 16-Bit DSP | Texas Instruments
MPN: TMS320C50PQA57 ✗ End of LifeTMS320C50PQA57 Overview
A digital signal processor is a specialized microprocessor optimized to execute mathematical operations on continuously changing audio, communications, control, and instrumentation signals. Unlike a general-purpose processor, the TMS320C50 architecture emphasizes parallel execution, specialized arithmetic instructions, on-chip peripherals, and deterministic throughput. Within the product hierarchy, it is a DSP, an embedded signal-processing processor, and a semiconductor designed for real-time computation.
Principal characteristics include a 57 MHz clock, 16-bit processing, and an indicated performance level of 28.5 MIPS. The Harvard-style architecture, specialized instruction set, on-chip memory, and integrated peripherals form the foundation of the TMS320C5x architecture. Static CMOS technology supports the device’s low-power embedded signal-processing role, while the large 132-pin package provides access to its parallel external-memory interface and peripheral signals.
The processor is suited to applications requiring sustained arithmetic throughput, including real-time audio processing, communications filtering, modulation, spectral analysis, industrial control, instrumentation, and embedded DSP system development. Its parallel architecture allows multiple operations to execute efficiently, reducing the number of instruction cycles required for common filtering and transform routines compared with a general-purpose software approach.
For new designs, engineers should evaluate surrounding memory, clock, reset, and peripheral interfaces before committing to this device. The 132-pin BQFP also demands careful escape routing and multilayer PCB planning. Because this is an older-generation processor, long-term procurement, software compatibility, and system obsolescence should be checked through the Request a Quote form on this page.
This page combines the manufacturer architecture description, verified package and performance data, focused alternatives, comparison parameters, and practical engineering guidance. It is intended to support design review and sourcing decisions for legacy DSP, industrial control, audio, and communications systems.
Drop-in alternatives for TMS320C50PQA57 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TMS320C50PQA57 (same form factor and footprint) — differing in Package Type.
TMS320C50PQ57
✅ Drop-InContact for price
View Datasheet →SM320C50PQM66EP
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320C50PQA57 Specifications
| Product Type | Digital Signal Processor (DSP) |
| Clock Frequency | 57 MHz |
| Instruction Throughput | 28.5 MIPS |
| Word Length | 16 bit |
| Arithmetic Support | Fixed-point and floating-point |
| Process Technology | Static CMOS |
| Architecture | Harvard-style architecture |
| Package Type | 132-pin plastic BQFP |
| Package Body Size | 24.13 mm x 24.13 mm |
| Terminal Count | 132 terminals |
| Mounting Type | Surface mount |
| Temperature Grade | Industrial |
| Operating Temperature | -40 °C to +85 °C |
TMS320C50PQA57 24.13 mm x 24.13 mm Pin Configuration Guide
Pin configuration for TMS320C50PQA57 (24.13 mm x 24.13 mm package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TMS320C50PQA57.
Refer to the datasheet for full pin configuration.
Typical Applications
TMS320C50PQA57 is suitable for 6 applications: Real-Time Audio Signal Processing, Communications Filtering and Modulation, Industrial Control and Condition Monitoring, Instrumentation and Measurement, Digital Control of Power Conversion, Legacy Digital Signal Processing Platform.
Real-Time Audio Signal Processing
The TMS320C50PQA57 fits real-time audio systems that require deterministic filtering, mixing, modulation, or sample-rate processing. Its 57 MHz clock and indicated 28.5 MIPS throughput provide a dedicated arithmetic engine, while the 16-bit word length aligns with common audio data formats. The processor can serve as the central DSP in a multi-channel signal path when external memory and serial converters are configured for the required bandwidth. Architect the system around predictable interrupt latency and sustained transfer performance, especially when filters or transforms execute concurrently with audio input and output.
Recommended
Communications Filtering and Modulation
The TMS320C50PQA57 is appropriate for embedded communications functions that repeatedly execute filtering, modulation, correlation, and spectral-processing algorithms. Its specialized DSP instruction set and 57 MHz operating frequency support sustained arithmetic operations more efficiently than an equivalent general-purpose software approach. In a transmitter or receiver design, the processor can control a complete sample-processing chain while external interfaces move data between the radio path and memory. Validate worst-case execution time for the selected algorithm, interrupt latency, and memory bandwidth under the full channel-loading condition.
Recommended
Industrial Control and Condition Monitoring
The TMS320C50PQA57 can support industrial condition-monitoring and control loops where sampled vibration, current, or sensor data must be filtered and analyzed in real time. Its 57 MHz clock provides the arithmetic throughput needed for time-domain processing, while 16-bit arithmetic suits many sensor-acquisition paths. The industrial temperature range of -40 °C to +85 °C supports equipment deployed across varied industrial environments. Use deterministic timing, watchdog supervision, and fault-safe output states when the processor participates in a machine-control loop, and verify thermal margin at the enclosure temperature.
Recommended
Instrumentation and Measurement
The TMS320C50PQA57 is suitable for laboratory and industrial instrumentation that performs continuous numerical analysis on acquired waveforms. Its 28.5 MIPS indicated performance can implement digital filters, curve fitting, FFT-based measurements, and calibration routines, while the 16-bit word length supports common precision requirements. The processor is most effective when the acquisition chain uses coherent sampling and the memory system avoids unnecessary data movement. Establish fixed-point scaling and rounding rules for each algorithm, and include self-test and calibration paths for production diagnostics.
Recommended
Digital Control of Power Conversion
The TMS320C50PQA57 can be applied to digital control of converters when high-rate sampling, compensation calculation, and PWM update functions must be combined in one processor. Its 57 MHz clock and specialized arithmetic operations support fast feedback loops, while its 16-bit format can represent control coefficients and sampled quantities. The design must account for converter-specific timing, PWM synchronization, and safe-state behavior during startup or a processor fault. Validate the complete control loop across input voltage, temperature, and component tolerances rather than relying only on nominal algorithm performance.
Recommended
Legacy Digital Signal Processing Platform
The TMS320C50PQA57 is particularly relevant to legacy DSP platforms where software, board layouts, and peripheral routines are already established around the TMS320C5x architecture. Maintaining the exact device can avoid redevelopment of a validated signal-processing system while retaining 57 MHz execution and 28.5 MIPS throughput. The 132-pin plastic BQFP requires multilayer routing and careful escape-routing planning, so a transition to a smaller package would not be mechanically direct. For long-running programs, document the toolchain, linker configuration, memory map, and peripheral initialization sequence to preserve reproducibility.
Recommended
Recommended Products Summary
Engineering reference data for TMS320C50PQA57 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TMS320C50PQ57 | SM320C50PQM66EP |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 132-pin plastic BQFP, 24.13 mm x 24.13 mm | 132-pin plastic BQFP | 132-pin plastic BQFP |
| Clock Frequency | 57 MHz | 57 MHz | 66 MHz |
| Word Length | 16 bit | 16 bit | 16 bit |
| Process Technology | Static CMOS | Static CMOS | Static CMOS |
| Architecture | Harvard-style architecture with specialized instruction set | Harvard-style architecture with specialized instruction set | Harvard-style architecture with specialized instruction set |
| Arithmetic Support | Fixed-point and floating-point | Fixed-point and floating-point | Fixed-point and floating-point |
| Terminal Count | 132 terminals | 132 terminals | 132 terminals |
Key Differentiators
- Exact identified clock-rate match within the TMS320C50 family (vs TMS320C50PQ57)
- Higher-clock same-family option for performance-oriented evaluation (vs SM320C50PQM66EP)
- Established industrial temperature positioning (vs SM320C50PQM66EP)
- Direct MPN continuity for established TMS320C50 designs (vs TMS320C50PQ57)
Design Notes
Treat the 132-pin plastic BQFP as a high-density escape-routing problem. The 24.13 mm by 24.13 mm body and gull-wing lead arrangement favor multilayer construction, short component-to-via connections, and uninterrupted return paths beneath the device. Assign external memory and peripheral signals by the manufacturer pin table, keep clock and reset routing short, and provide local decoupling at every required supply pin. Use the recommended land pattern and solder-mask geometry from the package drawing rather than estimating dimensions from a generic QFP footprint.
Separate clock, memory, and high-speed peripheral routes by function and keep sensitive inputs away from switching outputs. The TMS320C5x Harvard architecture includes distinct program and data paths, so simultaneous memory traffic can create current transients that couple into analog or reference circuitry. Use a solid ground plane, minimize stub lengths, and place termination or damping components only after identifying the actual signal edge rate and trace topology.
Do not treat the 57 MHz clock as the maximum real-time algorithm rate or assume that nominal throughput is available for every control loop. Account for instruction mix, memory stalls, interrupts, DMA activity, and worst-case external-memory timing. When modifying legacy code, preserve the original linker map, memory configuration, startup sequence, and peripheral initialization order. A functional simulation using the original toolchain can expose assumptions that a high-level algorithm model will not reveal.
Estimated: with a 5.0 V supply, a 57 MHz core, and an assumed 25% average processor utilization, average device power is approximately 71 mW before external-interface loading. Actual dissipation can increase with memory activity and output toggling. These figures are design estimates, not manufacturer limits; confirm worst-case activity, supply voltage, ambient temperature, and package thermal resistance before setting the system thermal budget.
Compliance Information
No explicit environmental or material-compliance declaration was identified for the exact MPN. The processor is an industrial-temperature DSP rather than an automotive-qualified device.
