TMS320C53PQ80 - 80 MHz 16-Bit Digital Signal Processor | Texas Instruments
MPN： TMS320C53PQ80 ✗ 停產TMS320C53PQ80 概覽
The TMS320C53 belongs to the TMS320C5x family of digital signal processors, which are semiconductor devices optimized for filtering, Fourier analysis, modulation, demodulation, waveform generation, and other mathematically intensive workloads. Unlike a general-purpose microcontroller, the device is designed around predictable instruction execution and dedicated hardware for real-time signal processing. Its architecture is suitable when processing latency and throughput are more important than software flexibility.
Key verified features include an 80 MHz maximum clock frequency, a 16-bit fixed-point CPU, 4,128 RAM words, a 16-bit external data bus, and a 132-pin QFP package. The TMS320C53PQ80 is identified as a commercial-temperature, gull-wing package device. The QFP format provides a large number of external signal, memory, control, and power connections while supporting conventional surface-mount assembly.
The processor is appropriate for telecommunications and signal-processing equipment, industrial automation, audio and speech systems, motor control, instrumentation, and embedded communications. Its 80 MHz clock provides the timing base for high-speed arithmetic, while the external bus allows systems to connect additional memory or peripherals when internal resources are insufficient. The device should be selected only when software and board design are prepared for a fixed-point DSP architecture and its documented pin, memory, and timing requirements.
Design work must account for the QFP footprint, power-supply sequencing, clock quality, decoupling, and the 16-bit external data interface. The commercial-temperature designation and package construction are relevant for industrial or consumer environments where the device remains within its specified operating limits. Exact operating-temperature limits, supply-voltage details, memory-map details, and electrical timing values require confirmation against the manufacturer datasheet before production release.
This product page consolidates verified distributor and technical information, pricing context, package details, comparison fields, and practical engineering guidance. It is intended to support component selection and design planning, while the manufacturer datasheet remains the controlling source for pin assignments, timing, electrical limits, and production implementation.
直接替換替代品，適用於 TMS320C53PQ80 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
TMS320C53PQ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TMS320C53PQ60
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TMS320C53PQ100
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TMS320C53PQ120
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TMS320C53PQ160
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TMS320C53PQ80 最大額定值與電氣特性
| Product Type | 16-bit fixed-point digital signal processor |
| 最大時脈頻率 | 80 MHz |
| CPU Word Length | 16 bit |
| External Data Bus Width | 16 bit |
| RAM Capacity | 4128 words |
| Instruction Execution Time | 25 ns at 5 V; 25 ns, 40 ns, or 50 ns at 3 V |
| Multiply/Accumulate Architecture | Single-cycle 16-bit multiply/add |
| Temperature Grade | Commercial |
| Package Type | 132-pin gull-wing QFP |
| Package Body Size | 24.13 mm x 24.13 mm |
| Maximum Supply Current | 157 mA |
| RoHS 狀態 | Compliant |
| 安裝類型 | Surface mount |
| 腳位數 | 132 pins |
| Clock Frequency | 80 MHz maximum |
TMS320C53PQ80 24.13 mm x 24.13 mm 腳位配置指南
TMS320C53PQ80（24.13 mm x 24.13 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： TMS320C53PQ80.
請參閱 資料表 以查看完整腳位配置。
典型應用
TMS320C53PQ80 適用於 6 應用s: Telecommunications Signal Processing, Industrial Automation and Motor Control, Audio and Speech Processing, Measurement and Instrumentation, Fixed-Point Control and Filtering, Embedded Communications Equipment.
Telecommunications Signal Processing
The TMS320C53PQ80 fits telecommunications signal-processing blocks that require an 80 MHz 16-bit fixed-point DSP and deterministic arithmetic. Its TMS320C5x CPU supports single-cycle 16-bit multiply/add operations, which is useful for filtering, modulation, demodulation, and packet-signal conditioning. The 4,128 RAM words provide on-chip working storage for short algorithms and buffers, while the 16-bit external data bus can expand system connectivity. Designers should budget instruction cycles around the 80 MHz clock and verify the external memory timing before committing to a high-throughput channel-processing architecture.
推薦
Industrial Automation and Motor Control
The TMS320C53PQ80 is suitable for industrial control algorithms that combine sampling, filtering, and fast feedback calculations. Its 80 MHz clock supports real-time fixed-point processing, while 4,128 RAM words and a 16-bit external data bus allow control data and sampled signals to be handled efficiently. The part is particularly relevant to digital motor-control or industrial signal-conditioning functions where deterministic execution matters more than general-purpose software convenience. Commercial-temperature status must be checked against the actual enclosure temperature, and power dissipation and clock jitter should be validated in the target controller.
推薦
Audio and Speech Processing
The TMS320C53PQ80 can implement real-time audio filtering, mixing, analysis, and speech-processing functions because its 80 MHz 16-bit fixed-point CPU provides a dedicated arithmetic foundation. The 4,128 RAM words are useful for short audio buffers and working variables, while the external bus supports additional data movement when sample rates or channel counts increase. For audio products, fixed-point scaling must be planned carefully to preserve signal-to-noise performance and avoid overflow. Clock accuracy, memory wait states, and synchronous serial interface requirements should be verified before selecting the DSP and writing the audio architecture.
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Measurement and Instrumentation
The TMS320C53PQ80 is appropriate for instrumentation functions requiring real-time sampling, digital filtering, calibration, and numerical processing. Its 80 MHz clock enables multiple instruction cycles between samples, while the 16-bit bus provides a straightforward data path for external converters and memory devices. The 4,128 RAM words can support working buffers, yet many precision instruments will require external storage or additional peripherals. Designers should use the manufacturer timing specifications to interface the processor with converters and should treat the commercial-grade designation as an important environmental screening requirement.
推薦
Fixed-Point Control and Filtering
The TMS320C53PQ80 provides a deterministic platform for fixed-point control loops, digital filters, and adaptive signal-processing algorithms. At 80 MHz, the processor can execute 16-bit multiply/add operations on a single-cycle basis, helping simplify control-loop scheduling compared with software-oriented processors. Its 4,128 RAM words support coefficients, state variables, and sample history, while the 16-bit external bus permits additional memory or I/O expansion. Firmware engineers should establish a consistent scaling strategy and account for execution-time margins, interrupts, and peripheral latency during worst-case timing analysis.
推薦
Embedded Communications Equipment
The TMS320C53PQ80 can support embedded communication equipment that performs real-time framing, filtering, or protocol-related signal processing on a 16-bit external data bus. The 80 MHz clock provides a substantial arithmetic budget for fixed-point algorithms, and 4,128 RAM words can hold packet descriptors, buffers, and intermediate results. The large 132-pin QFP exposes the processor's extensive external interface needs but also requires careful high-density board layout and decoupling. Before design release, verify electrical timing, address decoding, bus contention, and software timing against the manufacturer documentation.
推薦
推薦產品摘要
工程參考資料，適用於 TMS320C53PQ80 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TMS320C53PQ | TMS320C53PQ60 | TMS320C53PQ100 | TMS320C53PQ120 | TMS320C53PQ160 |
|---|---|---|---|---|---|---|
| Package | 132-pin gull-wing QFP | 132-pin QFP | 132-pin QFP | 132-pin QFP | 132-pin QFP | 132-pin QFP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Processor Type | 16-bit fixed-point digital signal processor | TMS320C53 family DSP | TMS320C53 family DSP | TMS320C53 family DSP | TMS320C53 family DSP | TMS320C53 family DSP |
| CPU Word Length | 16 bit | 16 bit family architecture | 16 bit family architecture | 16 bit family architecture | 16 bit family architecture | 16 bit family architecture |
主要差異化特點
- Target-grade 80 MHz processing clock (對比TMS320C53PQ60)
- Known 4,128-word RAM configuration (對比TMS320C53PQ)
- Verified 132-pin gull-wing QFP construction (對比TMS320C53PQ100)
設計說明
The verified package is a 132-pin gull-wing QFP, so the PCB footprint must be checked against the official Texas Instruments drawing before routing. Use short, controlled-length escape routes for clock and high-speed external-bus signals, provide local ground-plane continuity, and place decoupling capacitors close to the supply pins. The 16-bit external data bus and 80 MHz operating point make trace impedance and return-path continuity important.
The verified maximum supply current is 157 mA, but that figure should not be treated as the complete power budget. Verify supply-voltage limits, quiescent current, I/O loading, and clock-dependent current in the manufacturer datasheet. Decouple each supply group according to the datasheet recommendations and validate startup sequencing, voltage tolerances, and power-supply headroom on the assembled board.
A DSP clock running at 80 MHz requires a clean reference with low jitter and adequate rise and fall times. Route the clock away from high-current switching paths, provide a controlled ground reference, and follow the manufacturer's recommended clock topology. For the 16-bit external bus, confirm address and data timing at the intended operating condition, account for board skew, and avoid adding unnecessary stubs or test-point discontinuities.
Do not assume that a lower- or higher-numbered TMS320C53 suffix is a drop-in substitute without checking the official pinout, memory map, clock timing, and electrical limits. The PQ60 grade may reduce available throughput by 25% relative to the 80 MHz PQ80 target, while PQ100, PQ120, and PQ160 can change timing and thermal margins. Also do not rely on marketplace listings as proof of stock, lifecycle status, or authorized distribution.
合規資訊
The verified LCSC product record identifies the TMS320C53PQ80 as RoHS compliant. No verified REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification data was supplied.
