TMS320C50PQ80 - 80MHz Fixed-Point DSP | Texas Instruments
N.º de pieza: TMS320C50PQ80 ✓ ActivoTMS320C50PQ80 Descripción general
A digital signal processor, or DSP, is a semiconductor architecture optimized to execute repetitive mathematical operations on streaming data. A fixed-point DSP represents numerical values using integer and fractional bit positions, which can reduce arithmetic cost, hardware complexity, and power consumption compared with general-purpose processing. The TMS320C50PQ80 belongs to the TMS320C5x family of real-time processors used for filtering, transform, modulation, control, and embedded signal-analysis tasks.
The verified product information identifies the device as an 80 MHz fixed-point DSP with a 132-pin BQFP package. The associated device-family data describes a powerful 16-bit TMS320C5x CPU with 25 ns, 35 ns, and 50 ns single-cycle instruction execution times for 5 V operation, and 25 ns, 40 ns, and 50 ns execution times for 3 V operation. It also supports single-cycle multiplication and addition with 16-bit operands.
The architecture separates real-time execution from general-purpose control work through hardware acceleration and parallel processing resources. Its fixed-point arithmetic format is especially useful when data can be represented as scaled integers, allowing filters and control loops to execute within predictable cycle budgets. Designers must still account for scaling, rounding, saturation, and overflow handling to preserve signal accuracy.
Typical uses include audio and communications signal processing, industrial condition monitoring, motor and power-system control, instrumentation, and embedded communications infrastructure. The 80 MHz operating point provides meaningful throughput for real-time filtering and transform algorithms while the 132-pin package exposes the processor's parallel and external-memory interfaces.
A critical design consideration is system-level memory bandwidth. External-memory timing, bus arbitration, wait states, and program-data placement can determine whether the processor achieves its nominal instruction rate. Power, ground, and clock implementation must follow the manufacturer package and layout guidance rather than generic assumptions.
This page consolidates verified distributor specifications, source links, commercial details, and practical selection considerations for the TMS320C50PQ80. It also distinguishes confirmed characteristics from data that must be obtained from the manufacturer datasheet before layout, sourcing, or production release.
Alternativas directas para TMS320C50PQ80 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con TMS320C50PQ80 (mismo factor de forma y huella).
TMS320C50PQ64
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TMS320C50PQ100
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TMS320C51PQ64
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
TMS320C51PQ80
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →TMS320C51PQ100
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TMS320C50PQ80 Especificaciones
| Device Type | Fixed-point digital signal processor (DSP) |
| Manufacturer | Texas Instruments |
| Clock Frequency | 80 MHz |
| CPU Word Length | 16 bit |
| Instruction Execution Time at 5 V | 25 ns, 35 ns, and 50 ns single-cycle options |
| Instruction Execution Time at 3 V | 25 ns, 40 ns, and 50 ns single-cycle options |
| Arithmetic | Single-cycle multiplication and addition with 16-bit operands |
| Package Type | 132-pin BQFP |
| Package Dimensions | 24.13 mm x 24.13 mm |
| Terminal Count | 132 terminals |
| Estilo de montaje | Surface-mount |
| Temperature Grade | Commercial |
| Terminal Form | Gull wing |
| Package Shape | Square |
| Core Series | TMS320C5x |
| Tensión de alimentación de funcionamiento | 3 V or 5 V operation |
Guía de configuración de pines de TMS320C50PQ80 square
Configuración de pines para TMS320C50PQ80 (encapsulado square). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para TMS320C50PQ80.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
TMS320C50PQ80 es adecuado para 6 aplicacións: Digital Audio Filtering, Communications Signal Processing, Industrial Condition Monitoring, Motor and Power-System Control, Test and Measurement Instrumentation, Industrial Networked Control.
Digital Audio Filtering
The TMS320C50PQ80 fits fixed-point audio filtering because its TMS320C5x CPU executes 16-bit multiply-accumulate operations in a single cycle and operates at 80 MHz. An FIR or IIR filter can therefore process successive samples with predictable instruction throughput rather than relying on a general-purpose processor. The design should scale coefficients to preserve precision, saturate intermediate results where required, and verify that external-memory wait states do not reduce the expected sample-rate margin. Its 132-pin BQFP interface exposes the parallel processor and external-memory resources needed for continuous sample movement.
Recomendado
Communications Signal Processing
The TMS320C50PQ80 is suitable for communications modulation, filtering, and spectral analysis because its 80 MHz fixed-point architecture supports rapid, deterministic 16-bit arithmetic. Its single-cycle multiply-accumulate path is valuable in symbol-rate filters, carrier recovery routines, and real-time spectral analysis. Implementations should reserve fixed-point headroom for intermediate products and retain a fixed-point exception strategy for overflow. The processor's external-memory interface must be configured with sufficient bandwidth for the selected algorithm and sampling rate.
Recomendado
Industrial Condition Monitoring
The TMS320C50PQ80 can serve as the real-time processor in industrial vibration, acoustic, or electrical condition-monitoring equipment. Its 80 MHz operating point supports time-domain filtering, envelope extraction, spectral analysis, and feature detection at useful sampling rates, while the fixed-point architecture makes cycle behavior predictable. A robust implementation should use scaled arithmetic to avoid overflow, schedule sampling and DSP work within a verified real-time budget, and provide isolation or protection at analog inputs before those signals reach the processor.
Recomendado
Motor and Power-System Control
The TMS320C50PQ80 can execute fixed-point control algorithms for motor drives and power-system controllers where deterministic computation is required. Its 16-bit multiply-accumulate capability supports current-loop calculations, transformation routines, and digital filtering within a predictable cycle budget. Because it is a DSP rather than a flash-equipped digital signal controller, the implementation must include suitable program and data memory. Scaling, saturation, dead-time handling, and control-loop timing should be verified against the processor's external bus timing.
Recomendado
Test and Measurement Instrumentation
The TMS320C50PQ80 is appropriate for real-time measurement products that must analyze noisy or high-rate analog signals and produce deterministic results. Examples include spectrum analyzers, vibration analyzers, oscilloscope-style filtering, and programmable signal generators. The 80 MHz fixed-point processor can perform acquisition-path filtering and fast transforms, while the 132-pin package provides access to its parallel and external-memory interfaces. Designers should separate analog conditioning from the digital section, decouple supply rails properly, and ensure the memory architecture supports sustained data transfer.
Recomendado
Industrial Networked Control
The TMS320C50PQ80 can serve in an embedded control node that combines real-time sampling with serial communication. The DSP core can handle local filtering or control, while external interface logic manages the network protocol and host commands. Its 132-pin BQFP package provides the required signal density but demands careful separation of processor clocks, memory buses, and communication interfaces. Firmware should include timeout handling and deterministic task scheduling so network activity cannot unexpectedly violate the sampling deadline.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para TMS320C50PQ80 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Review TMS320C50PQ64 when the design needs the same family and footprint but can operate at 64 MHz, using the additional time to meet the sampling or processing deadline. Consider TMS320C50PQ100 when higher throughput is valuable and the power, clock, memory, and thermal design can support a 100 MHz grade.
Evaluate TMS320C51PQ64, TMS320C51PQ80, or TMS320C51PQ100 when C51-family functions are useful, but treat them as qualified migrations rather than automatic replacements. Confirm pin assignments, memory organization, peripherals, clock limits, initialization code, and timing. No cross-brand part in the supplied data is explicitly documented as a verified pin-to-pin replacement, so the safest substitution path is a same-family Texas Instruments migration supported by manufacturer documentation.
Comparación con alternativas
| Parámetro | Este producto | TMS320C50PQ64 | TMS320C50PQ100 | TMS320C51PQ64 | TMS320C51PQ80 | TMS320C51PQ100 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 132-pin BQFP | 132-pin BQFP - same | 132-pin BQFP - same | 132-pin BQFP - same | 132-pin BQFP - same | 132-pin BQFP - same |
| Device Type | Fixed-point digital signal processor | Fixed-point digital signal processor | Fixed-point digital signal processor | Fixed-point digital signal processor | Fixed-point digital signal processor | Fixed-point digital signal processor |
| Clock Frequency | 80 MHz | 64 MHz | 100 MHz | 64 MHz | 80 MHz | 100 MHz |
| CPU Word Length | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit |
| Single-Cycle Multiplication and Addition | Supported with 16-bit operands | Supported with 16-bit operands | Supported with 16-bit operands | Supported with 16-bit operands | Supported with 16-bit operands | Supported with 16-bit operands |
| Product Family | TMS320C5x | TMS320C50 | TMS320C50 | TMS320C51 | TMS320C51 | TMS320C51 |
| Mounting Style | Surface-mount gull wing | Surface-mount gull wing | Surface-mount gull wing | Surface-mount gull wing | Surface-mount gull wing | Surface-mount gull wing |
Diferenciadores clave
- Matching 80 MHz option within the same TMS320C5x family (frente a TMS320C51PQ80)
- Direct TMS320C50 family continuity (frente a TMS320C51PQ100)
- Broader timing margin than the 64 MHz option (frente a TMS320C50PQ64)
- Dedicated fixed-point DSP positioning (frente a TMS320F240PQS)
Notas de diseño
The verified data identifies both 3 V and 5 V operation modes, but does not provide the complete power-supply tolerance, current, or decoupling tables. Before laying out the 132-pin BQFP, obtain the manufacturer datasheet and use its recommended supply topology and capacitor values. Place high-frequency bypass capacitors close to the relevant supply and ground pins, keep return-current paths short, and isolate the processor's switching supply from sensitive analog sections. This is especially important because the device combines a dense external-memory interface with high-speed clocking.
Treat the TMS320C50PQ80 external-memory interface as a timing-critical, point-to-point subsystem. Route processor address, data, and control lines with matched topology and controlled length, and place termination or damping where the manufacturer reference design calls for it. Avoid routing the clock through areas containing switching-regulator traces and analog inputs. The 24.13 mm square 132-pin package offers substantial perimeter space, but correct pin assignment and escape routing still require the official package drawing rather than a generic BQFP footprint.
Do not treat equal package dimensions as proof that any TMS320C50 or TMS320C51 option is a drop-in replacement. Confirm the numbered pin assignment, power pins, clock input, reset behavior, memory interface, peripheral functions, and bus timing for every candidate. A valid footprint match also requires reviewing software initialization, linker placement, interrupt vectors, and peripheral register differences. The alternatives in this record are same-family candidates intended for controlled qualification, not a substitute for a manufacturer cross-reference approval.
The 80 MHz operating point makes clock and memory-edge timing central to signal integrity. Keep the clock source and decoupling close to the device, use a low-inductance return path under clock routing, and avoid stubs on memory nets. Verify worst-case behavior across process, voltage, and temperature rather than relying only on nominal simulation. If external memory introduces wait states, measure the resulting execution-time margin using the actual program and data-access pattern because nominal CPU frequency alone does not guarantee real-time throughput.
Información de cumplimiento
The supplied data identifies a commercial-grade TMS320C50PQ80 but does not contain explicit compliance declarations for this exact MPN. AEC-Q100 is marked not applicable because the verified listing describes the part as commercial grade.
