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TMS320LC542 from TEXAS

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TMS320LC542

Manufacturer: TEXAS, TI

Digital Signal Processor

Partnumber Manufacturer Quantity Availability
TMS320LC542 TEXAS, TI 722 In Stock

Description and Introduction

Digital Signal Processor The TMS320LC542 is a digital signal processor (DSP) manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on available factual information:

### **Specifications:**  
- **Architecture:** Fixed-point DSP  
- **Core:** TMS320C54x  
- **Clock Speed:** 40 MHz (varies by model)  
- **Instruction Cycle Time:** 25 ns (40 MIPS)  
- **On-Chip RAM:** 10K words (16-bit)  
- **On-Chip ROM:** 2K words (16-bit)  
- **External Memory Interface:** Supports up to 1M × 16-bit  
- **Data/Program Bus Width:** 16-bit  
- **Operating Voltage:** 3.3V (I/O), 1.8V (Core)  
- **Power Consumption:** Low-power design  
- **Package Options:** 100-pin TQFP (Thin Quad Flat Pack)  

### **Descriptions:**  
The TMS320LC542 is part of the TMS320C54x DSP family, optimized for low-power, high-performance signal processing applications. It is widely used in telecommunications, audio processing, and embedded control systems.  

### **Features:**  
- **Advanced Multibus Architecture:**  
  - One program bus, three data buses, and four address buses for improved parallelism.  
- **Low-Power Design:**  
  - Multiple power-down modes for energy efficiency.  
- **Enhanced Peripherals:**  
  - Software-programmable wait-state generator.  
  - On-chip timers and PLL (Phase-Locked Loop) clock generator.  
- **Efficient Instruction Set:**  
  - Single-cycle MAC (Multiply-Accumulate) operations.  
  - Supports block repeat operations.  
- **Development Support:**  
  - JTAG interface for debugging and emulation.  

This information is sourced from Texas Instruments' official documentation. For detailed datasheets, refer to TI's website.

Application Scenarios & Design Considerations

Digital Signal Processor

Alternative Part Number

  • TMS320C542PGE --: Same C54x DSP core and pin-compatible family member; the C542 variant is functionally equivalent to the LC542 with standard supply voltage, widely available.
  • TMS320VC5402PGE --: Low-voltage C54x DSP in the same family with similar architecture and instruction set; suitable replacement when 3.3V operation and comparable peripherals are acceptable.
  • TMS320C549PGE --: Higher-memory C54x DSP from the same generation, offering code compatibility and a superset of features for designs needing more on-chip RAM.
  • ADSP-2181 --: Comparable 16-bit fixed-point DSP from an alternate vendor, suitable when a cross-vendor second source is needed.

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