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Texas Instruments TMS320C50PQ80
- Part No.:
- TMS320C50PQ80
- Manufacturer:
- Texas Instruments
- Category:
- DSP (Digital Signal Processors)
- Package:
- 132-BQFP Bumpered
- Datasheet:
-
TMS320C50PQ80.pdf
- Description:
- IC DSP 132-BQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
TMS320C50PQ80 from Texas Instruments is a 16-bit fixed-point digital signal processor (DSP) optimized for real-time signal processing in embedded systems, featuring 50-ns single-cycle instruction execution at 5 V, 9K × 16-bit on-chip program ROM, 1K × 16-bit dual-access RAM (DARAM), and a 132-pin QFP package. It supports full-duplex synchronous serial communication and on-chip timer-based control operations in telecom and audio codec applications.
For engineers reviewing the TMS320C50PQ80 datasheet, TMS320C50PQ80 pinout, TMS320C50PQ80 application, or TMS320C50PQ80 equivalent, key selection considerations include its 5-V operation, PQ-package pin compatibility with TMS320C51/C53 variants, 224K × 16-bit external memory addressing capability, and IEEE 1149.1 JTAG boundary-scan support for production testability.
Technical Context
The TMS320C50PQ80 implements an enhanced Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. Its CPU executes up to 20 MIPS at 50 ns/cycle and integrates dedicated hardware for 16 × 16-bit multiply-accumulate (MAC) operations in a single cycle.
It features two serial ports - a full-duplex synchronous port and a time-division-multiplexed (TDM) port - plus host port interface (HPI) signals mapped only in higher-pin-count variants, not the PQ80. Clocking uses a PLL with selectable multipliers (×1 to ×9), and power management includes IDLE1, IDLE2, and full clock-off modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit fixed-point Harvard CPU with separate program/data buses for concurrent fetch/execute |
| Instruction Cycle Time | 50 ns at 5 V - enables 20-MIPS throughput for real-time filtering and control loops |
| On-Chip Memory | 9K × 16-bit ROM (boot loader), 1K × 16-bit DARAM, 544-word + 512-word SARAM - supports zero-wait-state code/data execution |
| External Address Space | 224K × 16-bit total (64K program + 64K data + 64K I/O + 32K global) - enables large algorithm buffers and multi-buffer ping-pong schemes |
| Power Consumption | 47 mA average at 5 V / 40 MHz - translates to 2.35 mA per MIPS for energy-sensitive portable DSP designs |
| Package & Pin Count | 132-pin plastic quad flat package (PQ suffix) - provides full parallel bus interface (A0–A15, D0–D15) and dual serial port routing |
| JTAG Compliance | IEEE 1149.1 Test Access Port (TAP) with TDI/TDO/TMS/TCK/TRST - enables boundary-scan testing and in-circuit emulation |
Pinout & Package
132-pin plastic quad flat package (PQ), 0.65 mm pitch, body size 28.0 × 28.0 mm, lead count 132, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Bus Output | 16-bit multiplexed address lines driving external memory decode logic |
| D0–D15 | Data Bus Bidirectional | 16-bit bidirectional data path supporting burst transfers to SDRAM or SRAM |
| PS/DS/IS | Memory Space Select | Active-low outputs indicating current access to program/data/I/O space for peripheral decoding |
| R/W, RD, WE | Bus Control Strobes | Read/write direction, read enable, and write enable signals synchronized to CLKOUT1 timing |
| CLKR/CLKX/FSR/FSX | Synchronous Serial Interface | Independent clock/frame sync for primary serial port - supports codec interfacing without external glue logic |
| TMS/TCK/TDO/TDI/TRST | JTAG Boundary Scan | Fully compliant IEEE 1149.1 interface for production test, debug, and flash programming |
| VDDA/VDDD/VDDC/VDDI | Supply Domains | Separated analog (VDDA), digital data (VDDD), control (VDDC), and core logic (VDDI) rails reduce noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Single-Cycle MAC Unit | 16 × 16-bit multiply + 32-bit accumulate in one instruction cycle - accelerates FIR/IIR filter kernels |
| Repeat Instructions | Hardware loop control eliminating branch overhead for tight compute loops - saves 2–4 cycles per iteration |
| Hardware Wait-State Generator | Configurable 0–7 wait states per memory access - enables direct interface to slow EPROM or flash without glue logic |
| On-Chip Timer | Free-running 16-bit counter with interrupt output - used for sample-rate timing, PWM generation, or system watchdog |
| Emulation Logic | Scan-based on-chip emulation (EMU0/EMU1) - supports real-time breakpoint and trace without halting system clocks |
Applications
| Telecom Voice Coding | Industrial Motor Control |
|---|---|
Use Scenario: Real-time G.723.1 speech encoding/decoding in VoIP gateways with <15-ms latency. IC Role / Device Role / Timing Role: Primary signal processing engine executing adaptive predictive coding algorithms using on-chip DARAM for coefficient storage. Use Value: 50-ns instruction cycle ensures deterministic execution of 8-kHz sampling loops with 128-sample frames. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors in HVAC blowers. IC Role / Device Role / Timing Role: Real-time torque/speed regulator computing Clarke/Park transforms and PI current loops every 50 µs. Use Value: Single-cycle MAC and repeat instructions achieve sub-10-µs loop latency critical for >20-kHz PWM switching. |
| Audio Effects Processing | Medical Signal Analysis |
Use Scenario: Low-latency reverb and equalization in professional audio mixers with 48-kHz sampling. IC Role / Device Role / Timing Role: Dedicated DSP coprocessor handling 64-tap FIR filters and dynamic compression via serial port-linked ADC/DAC. Use Value: Dual serial ports allow simultaneous input/output streaming while preserving full CPU bandwidth for algorithm computation. |
Use Scenario: Portable ECG analyzers detecting arrhythmias using real-time QRS complex detection and ST-segment analysis. IC Role / Device Role / Timing Role: Standalone signal conditioner performing baseline wander removal, notch filtering, and peak detection on 1-kS/s data. Use Value: On-chip 9K ROM stores validated filter coefficients and diagnostic firmware - eliminates external boot memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital signal processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMS320LC50PQ80 | 3.3-V core supply, 50/40/25-ns cycle times, identical PQ-132 pinout and memory map | Lower power consumption (23 mA at 3.3 V/40 MHz) but requires level-shifting for 5-V peripherals | Select when system-level power budget is constrained and external interface voltage translation is acceptable |
| TMS320C51PQ80 | 20-ns minimum cycle time, 8K × 16-bit on-chip SARAM, same PQ-132 package and serial port set | Higher performance for complex FFTs or multi-channel processing, but no TDM port support in PQ variant | Select when algorithm complexity demands faster execution and larger on-chip RAM outweighs TDM requirement |
Compared with TMS320LC50PQ80, the TMS320C50PQ80 delivers higher drive strength and 5-V tolerance for legacy peripheral interfacing; compared with TMS320C51PQ80, it trades raw speed for lower cost and proven stability in volume telecom deployments.
Availability
TMS320C50PQ80 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motor drives, professional audio equipment, and portable medical devices requiring stable component supply across extended product lifecycles.
Supply support for TMS320C50PQ80 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability electronic components.
The TMS320C5x family was designed for cost-sensitive, real-time embedded signal processing applications where deterministic low-latency execution and on-chip memory integration are critical - particularly in voice, audio, and motor control systems.
FAQ
What is the maximum operating frequency of the TMS320C50PQ80?
The TMS320C50PQ80 achieves a 50-ns single-cycle instruction execution time at 5 V, corresponding to a maximum system clock frequency of 20 MHz. This timing is guaranteed across commercial temperature range (0°C to 70°C) and supports deterministic real-time loop execution in voice coding and motor control applications. The TMS320C50PQ80 does not support overclocking beyond this specification.
Does the TMS320C50PQ80 support JTAG debugging?
Yes, the TMS320C50PQ80 fully complies with IEEE Standard 1149.1 and includes dedicated TMS, TCK, TDI, TDO, and TRST pins in its PQ-132 package. This enables boundary-scan testing, in-circuit emulation, and flash programming without requiring external debug adapters - a key advantage for production test and field firmware updates of the TMS320C50PQ80.
What memory resources are integrated on the TMS320C50PQ80?
The TMS320C50PQ80 integrates 9K × 16-bit on-chip program ROM, 1K × 16-bit dual-access RAM (DARAM), and 544-word + 512-word single-access RAM (SARAM). These resources support zero-wait-state execution of boot code and real-time data buffers, eliminating need for external SRAM in many voice codec and control applications using the TMS320C50PQ80.
Can the TMS320C50PQ80 interface directly with standard 5-V peripherals?
Yes, the TMS320C50PQ80 operates at 5 V and features 5-V-tolerant I/O pins including A0–A15, D0–D15, R/W, RD, WE, and PS/DS/IS. Its VDDA/VDDD/VDDC/VDDI supply domains are all rated for 5 V, allowing direct connection to legacy 5-V ADCs, DACs, and memory without level-shifting circuitry - a key interoperability feature of the TMS320C50PQ80.
Is there a drop-in replacement for the TMS320C50PQ80 with lower power consumption?
The TMS320LC50PQ80 is a functionally identical, pin-compatible alternative operating at 3.3 V with 50/40/25-ns cycle times and 23 mA typical current draw at 40 MHz - offering ~51% lower active power than the TMS320C50PQ80. However, it requires level translation for 5-V peripheral interfaces and is not a true drop-in replacement unless the system design accommodates mixed-voltage signaling.
TMS320C50PQ80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TMS320C5x
- Package/Case:
- 132-BQFP Bumpered
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Serial Port
- Clock Rate:
- 80MHz
- Non-Volatile Memory:
- ROM (4kB)
- On-Chip RAM:
- 20kB
- Voltage - I/O:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 132-BQFP (24.13x24.13)
TMS320C50PQ80 FAQ
1.How can I place an order for TMS320C50PQ80 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMS320C50PQ80 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMS320C50PQ80 reliable?
The price and inventory of TMS320C50PQ80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMS320C50PQ80 is usually 5 days.
3.What payment methods are accepted for TMS320C50PQ80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMS320C50PQ80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMS320C50PQ80?
TMS320C50PQ80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMS320C50PQ80 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMS320C50PQ80?
For technical support, including TMS320C50PQ80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMS320C50PQ80 requirements.
6.How does Aetrix verify that TMS320C50PQ80 is sourced from the original manufacturer or authorized distributors?
All TMS320C50PQ80 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMS320C50PQ80 meets industry standards.
7.What is the process for return or replacement of TMS320C50PQ80?
All TMS320C50PQ80 units undergo pre-shipment inspection (PSI). If there is an issue with TMS320C50PQ80, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMS320C50PQ80 part is unused and in its original packaging.
Return procedure for TMS320C50PQ80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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