Texas Instruments TMS320VC5501GZZ300

Overview

TMS320VC5501GZZ300 from Texas Instruments is a fixed-point digital signal processor (DSP) with 300 MHz CPU clock, 128K × 16-bit on-chip dual-access RAM (DARAM), 64K × 16-bit on-chip ROM, and integrated peripherals including McBSP, UART, I²C, HPI, and DMA. It targets real-time audio processing, voice recognition, and telecom baseband applications requiring deterministic low-latency execution.

For engineers reviewing the TMS320VC5501GZZ300 datasheet, TMS320VC5501GZZ300 pinout, TMS320VC5501GZZ300 application, or TMS320VC5501GZZ300 equivalent, key selection criteria include its 201-ball BGA (GZZ) package, 3.3-V I/O compatibility, 1.6-V core voltage, PLL-based clock generation up to 300 MHz, and support for asynchronous/synchronous external memory interfaces.

Technical Context

The TMS320VC5501GZZ300 implements a dual-MAC, 16-bit fixed-point VLIW architecture optimized for power-efficient signal processing. Its memory subsystem includes separate program/data buses, instruction cache, and configurable external memory interface (EMIF) supporting SDRAM, SRAM, and flash.

Peripherals are tightly coupled via internal buses: the multichannel buffered serial port (McBSP) supports TDM, I²S, and SPI modes; the host-port interface (HPI) enables direct host access to internal memory; and the DMA controller offloads data movement from the CPU across multiple channels with chaining support.

Key Specifications

Pinout & Package

Package: 201-ball micro-BGA (GZZ), 12 mm × 12 mm, 0.8-mm pitch, RoHS-compliant, thermally enhanced bottom-side thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320VC5501GZZ300, the TMS320VC5502GZZ300 offers double on-chip RAM for complex filter banks, while the TMS320C5515ZAY trades raw speed for integrated peripherals and lower active power - making the former ideal for memory-bound legacy upgrades and the latter for greenfield mixed-signal applications.

Availability

TMS320VC5501GZZ300 is available at Aetrix Electronics and suitable for voice recognition systems, telecom baseband modules, industrial audio analytics, and medical ultrasound beamforming requiring stable component supply and long-term obsolescence management.

Supply support for TMS320VC5501GZZ300 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 digital signal processing technologies with over 50 years of innovation in high-reliability silicon design.

The TMS320C55x™ DSP platform was engineered for ultra-low-power, high-efficiency fixed-point signal processing in battery-operated and thermally constrained embedded systems.

FAQ

What is the maximum operating frequency of the TMS320VC5501GZZ300?

The TMS320VC5501GZZ300 operates at a maximum CPU clock frequency of 300 MHz, achieved via its on-chip PLL synthesizing from a 1–20 MHz external clock source. This frequency is guaranteed under recommended operating conditions (1.6-V core, 3.3-V I/O, –40°C to +85°C ambient). The TMS320VC5501GZZ300's architecture sustains this rate with zero-wait-state access to on-chip DARAM and instruction cache, enabling deterministic real-time performance in audio and telecom workloads.

Does the TMS320VC5501GZZ300 support SDRAM interfacing?

Yes, the TMS320VC5501GZZ300 supports SDRAM interfacing through its External Memory Interface (EMIF), with dedicated control signals (RAS, CAS, WE, CS) and programmable timing registers compliant with JEDEC standards. The TMS320VC5501GZZ300 datasheet specifies SDRAM command timings including ACTV, REFR, MRS, and CAS latency configurations. Users must initialize SDRAM via software-controlled EMIF registers before enabling burst reads/writes.

What is the function of the HPI interface on the TMS320VC5501GZZ300?

The Host Port Interface (HPI) on the TMS320VC5501GZZ300 is an 8-bit parallel bus (HPI_HD[7:0]) that allows an external host processor to directly read from and write to the TMS320VC5501GZZ300's internal memory map without CPU intervention. It supports both multiplexed and non-multiplexed addressing modes, and is commonly used for firmware loading, real-time parameter updates, and debug access. The TMS320VC5501GZZ300 implements HPI-8 mode exclusively.

Can the TMS320VC5501GZZ300 operate with a 1.8-V I/O supply?

No, the TMS320VC5501GZZ300 requires a nominal 3.3-V I/O supply (VDD_IO) across its entire specified operating range; operation at 1.8 V violates absolute maximum ratings and will result in undefined I/O behavior or permanent damage. The TMS320VC5501GZZ300's I/O buffers are designed for 3.3-V LVTTL/LVCMOS compatibility, and no internal level-shifting is provided. External voltage translators are required for interfacing with 1.8-V peripherals.

How much on-chip memory does the TMS320VC5501GZZ300 include?

The TMS320VC5501GZZ300 integrates 128K × 16-bit dual-access RAM (DARAM) and 64K × 16-bit mask-programmed ROM. The DARAM is organized into four 32K-word blocks, each supporting simultaneous read and write operations - critical for pipelined DSP algorithms. The ROM contains boot loader code and fixed-function routines. No additional on-chip SRAM or Flash is present; external memory expansion is managed via the EMIF. This memory configuration is fixed for the TMS320VC5501GZZ300 and cannot be altered by configuration bits.