TMS320LBC51PZ - 16-Bit DSP, 25 ns Cycle Time | Texas Instruments
部品番号: TMS320LBC51PZ ✓ 生産中TMS320LBC51PZ 概要
A digital signal processor is a semiconductor optimized for repeated mathematical operations on sampled signals. In the product hierarchy, a DSP is a microprocessor specialization, while the TMS320C5x CPU is the processor core used by the TMS320LBC51 device family. Compared with a general-purpose microcontroller, the architecture emphasizes deterministic multiply-accumulate processing, parallel peripheral functions, and direct control of external memory and data-transfer interfaces.
The verified device information identifies a 16-bit processor with single-cycle multiply/add capability. According to the TMS320LBC51 datasheet information, the 5 V execution options provide 25 ns, 35 ns, and 50 ns single-cycle instruction times, while the 3 V options provide 25 ns, 40 ns, and 50 ns. These timing choices allow a design to trade processing throughput against supply-voltage and power-consumption requirements. Commercial temperature grade, square gull-wing construction, and the 100-terminal LFQFP footprint are also identified in the verified distributor records.
Typical uses include communications-channel processing, audio and control-signal filtering, modulation, demodulation, spectrum analysis, and industrial automation modules. The processor can implement multiply-and-accumulate loops efficiently because these operations are central to filtering and other DSP kernels. External program and data memory expands the working set for coefficients, histories, and frame buffers, allowing system designers to separate code storage from high-speed working data.
PCB design should preserve the short, controlled paths required by the processor bus and external-memory interface. Decoupling should be placed at the appropriate supply pins, with signal-integrity and clock-distribution practices followed from the manufacturer datasheet. Because detailed memory maps, peripheral assignments, pin names, electrical limits, and timing tables were not present in the supplied web extract, they should be verified directly against the complete manufacturer datasheet before schematic capture or PCB release.
This product record combines verified package, processor-width, voltage-dependent cycle-time, and commercial-grade information with explicit data gaps. It also distinguishes manufacturer specifications from unavailable pricing and lifecycle details, helping engineers plan sourcing and hardware validation without treating unverified numerical assumptions as confirmed specifications.
ドロップイン代替品: TMS320LBC51PZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストTMS320LBC51PZ 仕様
| Product Type | Digital signal processor (DSP) |
| Processor Core | TMS320C5x CPU |
| Processor Word Length | 16 bit |
| 5 V Single-Cycle Instruction Time | 25 ns, 35 ns, or 50 ns |
| 3 V Single-Cycle Instruction Time | 25 ns, 40 ns, or 50 ns |
| Multiplier | Single-cycle 16-bit multiply/add capability |
| Supply Voltage Options | 3 V and 5 V |
| Temperature Grade | Commercial |
| Package Code | LFQFP |
| Package Shape | Square |
| Terminal Form | Gull wing |
| Number of Terminals | 100 |
| 実装タイプ | Surface mount |
TMS320LBC51PZ square ピン配置ガイド
TMS320LBC51PZ (square パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: TMS320LBC51PZ.
詳細は データシート をご参照ください。
主な用途
TMS320LBC51PZ の用途: 6 件s: Digital Filtering and Equalization, Communications Channel Processing, Audio Signal Processing, Industrial Automation and Control, Spectrum and Vibration Analysis, Fixed-Point Control and Monitoring.
Digital Filtering and Equalization
The TMS320LBC51PZ is suitable for FIR and IIR filtering because the verified device information identifies single-cycle 16-bit multiply/add capability, the fundamental arithmetic operation used by many digital filters. A DSP implementation can process coefficient arrays, sample histories, and accumulator results with deterministic instruction timing. At 5 V, the processor offers 25 ns, 35 ns, or 50 ns single-cycle options, allowing implementation choices to be matched to throughput and power constraints. External memory can hold coefficients and sample buffers, although the required memory architecture, bus timing, and buffer size must be confirmed from the full datasheet.
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Communications Channel Processing
The 16-bit TMS320C5x architecture of the TMS320LBC51PZ aligns with communications tasks involving filtering, symbol processing, modulation, and demodulation. Single-cycle multiply/add execution is particularly relevant to correlation, convolution, and polynomial-update loops commonly found in channel-processing pipelines. The available 25 ns to 50 ns timing options permit design tradeoffs between throughput and voltage-related power behavior. A practical implementation should partition time-critical operations between the DSP and dedicated hardware while verifying the processor's external-memory, serial-interface, and interrupt resources against the complete manufacturer datasheet.
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Audio Signal Processing
The TMS320LBC51PZ can serve as the computational core in audio equalizers, analyzers, and real-time signal-conditioning products. Its verified 16-bit width and single-cycle multiply/add operation support sample-rate conversion, envelope processing, and filter update calculations, while its DSP execution model is more specialized than a general-purpose control processor. Designers must establish the supported audio serial interface, required DMA behavior, memory bandwidth, and timing from the full datasheet. The commercial-grade marking also requires checking against the enclosure's actual temperature range before deployment.
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Industrial Automation and Control
The TMS320LBC51PZ is applicable where an industrial controller must evaluate continuous sensor signals in addition to managing sequencing logic. Its DSP-oriented arithmetic can accelerate PID-adjacent calculations, vibration features, adaptive filtering, and other sampled-data operations. The verified 3 V timing options and commercial temperature grade provide a starting point for power- and environment planning, but they do not establish extended-temperature or functional-safety qualification. System integrators should separate real-time DSP work from supervisory I/O, confirm peripheral availability, and validate watchdog, startup, and interrupt behavior against the full datasheet.
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Spectrum and Vibration Analysis
The TMS320LBC51PZ fits measurement systems requiring deterministic numerical processing of vibration, acoustic, or other sampled waveforms. Multiply/add operations are used heavily by filters, correlation routines, and transform-related kernels, while the 25 ns fastest listed cycle option supports performance-oriented designs. External program and data memory can accommodate coefficient tables, overlap buffers, and acquisition records, subject to the device's verified bus and memory architecture. The final instrument design must account for analog-front-end isolation, anti-alias filtering, data-transfer bandwidth, and synchronization between acquisition and processing.
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Fixed-Point Control and Monitoring
The TMS320LBC51PZ can implement deterministic fixed-point control and monitoring functions where repeatability is more important than maximum general-purpose software flexibility. The verified 16-bit processor width and single-cycle multiply/add operation support loop-oriented control calculations and signal compensation. Designers should use fixed-point scaling carefully to preserve dynamic range, verify saturation behavior, and check interrupt latency for time-critical loops. Because detailed peripheral, memory, and electrical information was not included in the supplied excerpts, those values must be obtained from the manufacturer datasheet before software and board sign-off.
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エンジニアリング参考データ: TMS320LBC51PZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
主な差別化要因
- Specialized 16-bit DSP execution model （vs General-purpose 16-bit microcontroller)
- Choice of voltage-dependent cycle times （vs Fixed-clock general-purpose processor)
- Established high-pin-count LFQFP integration （vs Smaller-package microcontroller)
設計ノート
Use the manufacturer-defined 100-terminal LFQFP footprint and place all required bypass capacitors close to their assigned supply pins. Confirm pin names, supply domains, memory connections, and test conditions in the complete datasheet before routing because the verified excerpts do not provide a usable pin table. Keep high-current return paths short and preserve uninterrupted reference planes beneath the processor where the footprint and thermal design permit.
Trace processor clocks and external-memory signals as controlled-impedance nets using the stack-up and impedance targets recommended by the manufacturer. Avoid routing memory or clock signals across split power planes, and keep switching-node or high-current outputs away from sensitive inputs. The exact memory bus topology and supported speed must be verified from the datasheet; no unsupported bus rate should be assumed from the available 25 ns processor timing.
Select the 3 V or 5 V operating option according to the complete electrical specification rather than only the listed cycle time. At 5 V, the verified choices are 25 ns, 35 ns, and 50 ns; at 3 V, they are 25 ns, 40 ns, and 50 ns. Validate supply tolerances, sequencing requirements, current limits, and power dissipation under the intended instruction mix before finalizing the regulator and thermal design.
Do not treat a 100-terminal square LFQFP as proof that any similarly packaged processor is a substitute. A genuine replacement must preserve the complete pin function map, TMS320C5x software compatibility, memory interface, peripherals, timing, electrical limits, and package geometry. Also do not use the placeholder zero prices in this record as commercial quotations; current distributor pricing and stock must be confirmed.
コンプライアンス情報
The verified web excerpts do not provide explicit compliance declarations for the exact MPN. Commercial temperature grade is identified, but it must not be interpreted as AEC-Q100 qualification.
