TMS320VC5402PGE100 TI TMS320C54x 16-Bit Fixed-Point DSP 100MHz 32KB ROM 80KB SRAM McBSP HPI LQFP-100

TMS320VC5402PGE100 Product Overview

The TMS320VC5402PGE100 is a high-performance 16-bit fixed-point digital signal processor (DSP) from Texas Instruments, built around the C54x core and running at 100MHz (100 MIPS). It is packaged in a 100-lead LQFP (PGE). The TMS320VC5402PGE100 is optimized for low-power, high-throughput signal processing tasks, integrating 16K×16 of mask ROM (32KB) and 80KB of SRAM (16KB DARAM + 64KB SARAM), providing ample storage for firmware and real-time data. Peripheral interfaces of the TMS320VC5402PGE100 include three high-speed multi-channel buffered serial ports (McBSP), an 8/16-bit enhanced host port interface (HPI), and two general-purpose timers. A 6-channel DMA controller and a flexible on-chip PLL that generates 100MHz from a low-frequency external clock significantly offload data movement and simplify clock design. Leveraging the C54x core's efficient low-power design and single-cycle MAC capability, the TMS320VC5402PGE100 excels in voice codecs, audio processing, digital communication basebands, and industrial sensor signal conditioning. It is fully supported by TI's free Code Composer Studio IDE and the extensive DSPLIB library, accelerating the development of signal processing products.

TMS320VC5402PGE100 Core Features

Processor Core: The TMS320VC5402PGE100 features a 16-bit C54x fixed-point DSP, 100MHz (100 MIPS), single-cycle 16×16 MAC

On-Chip Memory: The TMS320VC5402PGE100 provides 16K×16 mask ROM (32KB), 8K×16 DARAM (16KB), 32K×16 SARAM (64KB) – total 80KB SRAM

DMA Controller: The TMS320VC5402PGE100 includes a 6-channel DMA for autonomous data transfers, freeing CPU bandwidth

McBSP: The TMS320VC5402PGE100 offers 3 high-speed multi-channel buffered serial ports, supporting I2S, TDM, PCM protocols

HPI: The TMS320VC5402PGE100 integrates an 8/16-bit enhanced host port interface for easy data sharing with external MCUs/processors

Timers & PLL: The TMS320VC5402PGE100 contains 2 GP timers, on-chip programmable PLL for flexible clock generation

System: The TMS320VC5402PGE100 features a software-programmable wait-state generator, multiple power-down modes (IDLE1/2/3)

Temperature Range: Supports wide temperature operation; refer to the latest TI datasheet for exact range

Package: The TMS320VC5402PGE100 is available in a 100-lead LQFP (PGE), 14mm×14mm, 0.5mm pitch

TMS320VC5402PGE100 Applications

Voice & Audio: The TMS320VC5402PGE100 is used in VoIP terminals, digital radios, speech codecs (G.711/G.729), audio effects processors

Digital Communication: The TMS320VC5402PGE100 enables wireless baseband modems, wireline signaling, power line communication (PLC)

Industrial Sensing: The TMS320VC5402PGE100 handles vibration analysis, sensor front-end processing, active noise cancellation

Embedded Signal Processing: The TMS320VC5402PGE100 serves as co-processor boards requiring HPI, data acquisition & analysis modules

TMS320VC5402PGE100 Key Advantages

Efficient Fixed-Point Engine: The TMS320VC5402PGE100's 100MHz C54x core with single-cycle MAC rapidly executes FIR/IIR filters, FFT, and other algorithms, far outperforming general-purpose MCUs at the same clock speed.

Optimized Low-Power Design: The TMS320VC5402PGE100 features multiple sleep modes, making it ideal for battery-operated or thermally constrained embedded and communication devices.

Rich Serial Audio Interfaces: Three McBSP modules on the TMS320VC5402PGE100 simultaneously connect to multiple audio codecs, ADCs/DACs, or communication front-ends, simplifying multi-channel voice/audio system design.

Flexible HPI Communication: The 8/16-bit HPI of the TMS320VC5402PGE100 enables an external host (ARM, MCU) to directly access DSP internal RAM, efficiently exchanging control and data for heterogeneous processing architectures.

Compact, Highly Integrated Package: The TMS320VC5402PGE100's 100-lead LQFP occupies minimal board space while integrating large SRAM and multiple serial ports, suitable for space-constrained signal processing boards.

Mature Tools & Libraries: The TMS320VC5402PGE100 is fully compatible with Code Composer Studio IDE and TI DSPLIB, offering a wealth of optimized signal processing functions that dramatically lower algorithm development effort.

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FAQ

1. What does the "100" in TMS320VC5402PGE100 signify?
   
   • “100” denotes the DSP core operating frequency of the TMS320VC5402PGE100 at 100MHz, delivering 100 MIPS of processing power — double the throughput of the 50MHz version.
2. What are the uses of the mask ROM and SRAM?
   
   • In the TMS320VC5402PGE100, the 32KB mask ROM can store firmware or boot code, reducing reliance on external memory. The 80KB SRAM (DARAM + SARAM) holds real-time data, stacks, and dynamically loaded algorithm segments, combining speed with flexibility.
3. What peripherals can the McBSP interface connect to?
   
   • McBSP on the TMS320VC5402PGE100 supports I2S, TDM, PCM, and other serial protocols, connecting directly to audio codecs, ADCs/DACs, digital filters, and communication RF front-ends for multi-channel voice or communication systems.
4. What is the purpose of the HPI interface?
   
   • The 8/16-bit HPI of the TMS320VC5402PGE100 lets an external host (ARM, MCU, or another DSP) directly read/write the DSP's internal RAM, enabling dual-chip architectures where the host handles system control and the DSP focuses on algorithms.
5. What can the DMA achieve?
   
   • Six DMA channels on the TMS320VC5402PGE100 autonomously move data between McBSPs, HPI, or internal memory without CPU intervention, freeing the processor to run signal processing tasks and boosting real-time performance.
6. What software tools are needed for development?
   
   • TI's free Code Composer Studio (CCS) with DSPLIB is recommended. XDS100 or XDS200 JTAG emulators can be used for debugging the TMS320VC5402PGE100.
7. Is it interchangeable with the TMS320VC5402-50?
   
   • Functionally and peripherally identical; only the clock speed differs between the TMS320VC5402PGE100 and the -50 version. Software is compatible, but hardware must meet the 100MHz version's power and timing requirements.
8. Is this DSP suitable for battery-powered equipment?
   
   • Yes, the TMS320VC5402PGE100 belongs to the C54x family known for low power consumption and supports multiple sleep modes (IDLE1/2/3), making it excellent for portable audio, communication devices, and battery-operated sensor nodes.
9. What soldering considerations apply to the 100-lead LQFP?
   
   • The TMS320VC5402PGE100 uses a 0.5mm pitch LQFP; standard reflow soldering yields high quality, and manual soldering is possible with flux and drag technique. Exposed leads simplify inspection and rework.
10. What are the upgrade options for higher performance?
    
    • Consider TI's TMS320C55x family (e.g., C5509A/C5517), which offers higher MIPS, larger memory, and richer peripherals while retaining the C54x programming model and low-power advantages of the TMS320VC5402PGE100.