Texas Instruments TMS320VC5409AZGU16

Overview

TMS320VC5409AZGU16 from Texas Instruments is a fixed-point digital signal processor (DSP) optimized for real-time audio, telecom, and industrial control applications. It delivers 160 MIPS at 160 MHz via a 6.25-ns instruction cycle, features 32K × 16-bit on-chip dual-access RAM, 16K × 16-bit ROM with bootloader, and integrates six-channel DMA, three McBSPs, and an 8/16-bit HPI interface.

For engineers reviewing the TMS320VC5409AZGU16 datasheet, TMS320VC5409AZGU16 pinout, TMS320VC5409AZGU16 application, or TMS320VC5409AZGU16 equivalent, key selection criteria include its 144-ball MicroStar BGA (GGU) package, 160-MHz PLL clock generator, 40-bit ALU with barrel shifter and dual accumulators, and support for external memory expansion up to 8M × 16-bit program space.

Technical Context

The TMS320VC5409AZGU16 implements a multibus architecture with three independent 16-bit data memory buses and one program memory bus, enabling simultaneous instruction fetch and dual data accesses. Its 40-bit ALU includes a 40-bit barrel shifter and two 40-bit accumulators, supporting non-pipelined single-cycle MAC operations via a 17 × 17-bit parallel multiplier.

On-chip peripherals include a software-programmable wait-state generator, programmable bank-switching logic, six-channel DMA controller with autoinitialization mode, three multichannel buffered serial ports (McBSPs) supporting SPI master/slave modes, and an enhanced 8/16-bit host-port interface (HPI8/16) operating in nonmultiplexed mode.

Key Specifications

Pinout & Package

Package: 144-ball MicroStar BGA (GGU), 10 mm × 10 mm, 0.8-mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-point DSP applications.

Compared with TMS320VC5409AZGU16, the TMS320VC5416PGE160 offers significantly more on-chip RAM but sacrifices HPI16 and uses LQFP packaging, while the TMS320C5505ZCH12 introduces USB and lower voltage operation at the cost of binary incompatibility and reduced peak MIPS-making each suitable only for distinct design constraints.

Availability

TMS320VC5409AZGU16 is available at Aetrix Electronics and suitable for voice codec systems, industrial motor control, digital audio mixers, and telecom line cards requiring stable component supply across long-lifecycle embedded deployments.

Supply support for TMS320VC5409AZGU16 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 founded in 1930, specializing in analog, embedded processing, and digital signal processing technologies with broad industrial, automotive, and communications reach.

The TMS320C54x family-including the TMS320VC5409AZGU16-was engineered for cost-sensitive, high-throughput fixed-point signal processing in telecom infrastructure, audio systems, and real-time control where deterministic low-latency execution is critical.

FAQ

What is the maximum operating frequency of the TMS320VC5409AZGU16?

The TMS320VC5409AZGU16 operates at a maximum frequency of 160 MHz, achieved via its on-chip PLL clock generator. This yields a 6.25-ns single-cycle instruction execution time and 160 MIPS performance. The PLL accepts either an internal oscillator with external crystal (1–20 MHz) or an external clock source, and supports multiply-by-N configurations per the device's clock mode settings.

Does the TMS320VC5409AZGU16 support external memory expansion?

Yes, the TMS320VC5409AZGU16 supports up to 8M × 16-bit external program memory space using its extended addressing mode. It features an enhanced external parallel interface (XIO2) with programmable wait-state generation and bank-switching control, enabling seamless interfacing with asynchronous SRAM, Flash, or EPROM without glue logic.

How many serial interfaces does the TMS320VC5409AZGU16 include?

The TMS320VC5409AZGU16 integrates three independent multichannel buffered serial ports (McBSP0–McBSP2). Each supports TI-specific framing, I2S, AC97, and SPI master/slave modes with configurable clock polarity, phase, and frame sync. These enable simultaneous connections to audio codecs, ADC/DACs, and other DSPs in multi-processor topologies.

What power-saving features are implemented in the TMS320VC5409AZGU16?

The TMS320VC5409AZGU16 includes IDLE1, IDLE2, and IDLE3 instructions that progressively disable CPU execution units, peripherals, and clocks while retaining register and memory contents. It also supports CLKOUT off control to eliminate clock distribution power. These features reduce active current to sub-mA levels during idle periods without requiring external power sequencing.

Is JTAG debugging supported on the TMS320VC5409AZGU16?

Yes, the TMS320VC5409AZGU16 includes IEEE Std 1149.1 (JTAG) boundary scan logic and on-chip scan-based emulation. This enables real-time in-circuit debugging, breakpoint insertion, register inspection, and flash programming via standard TI XDS emulators-without requiring dedicated debug pins beyond the four JTAG signals (TCK, TMS, TDI, TDO).