Texas Instruments TMS320C5532AZHH05

Overview

TMS320C5532AZHH05 from Texas Instruments is a fixed-point digital signal processor (DSP) optimized for ultra-low-power audio and voice processing. It features a 50-MHz TMS320C55x CPU core, 64KB on-chip dual-access RAM (DARAM), 128KB ROM, four I²S interfaces, and real-time clock (RTC) with crystal input - deployed in portable medical devices and wireless headsets requiring deterministic low-latency signal path control.

For engineers reviewing the TMS320C5532AZHH05 datasheet, TMS320C5532AZHH05 pinout, TMS320C5532AZHH05 application, or TMS320C5532AZHH05 equivalent, this page delivers verified functional scope, validated peripheral mapping, confirmed power domain isolation, and precise package-level interface constraints - all specific to the ZHH 144-ball BGA variant operating at 1.05 V core voltage and 50 MHz.

Technical Context

The TMS320C5532AZHH05 implements the C55x DSP architecture with two 17×17-bit MAC units delivering up to 100 MMACS, a 40-bit ALU plus auxiliary 16-bit ALU, and a variable-byte-width instruction set for code density. Its internal bus structure supports four 16-bit data reads and two 16-bit writes per cycle, enabling high-throughput DMA-driven audio streaming without CPU intervention.

It integrates four independent DMA controllers (16 total channels), each capable of one 32-bit transfer per cycle, and supports software-programmable PLL with x4–x4099 multiplier range. Unlike higher-tier C5535/C5534 variants, it excludes USB 2.0 PHY, LCD bridge, SAR ADC, and FFT hardware accelerator - retaining only ANA_LDO (1.3 V for PLL/VDDA_ANA) and core I/O isolation domains.

Key Specifications

Pinout & Package

The TMS320C5532AZHH05 uses a 144-terminal Pb-free plastic BGA (ZHH suffix) with 0.8-mm ball pitch and 12.0 mm × 12.0 mm body size. Pin functions are multiplexed across GPIO, peripheral, JTAG, and power domains - all defined in TI SPRS737C Section 4.2 (Signal Descriptions) and Figure 4-1 (Pin Diagram).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TMS320C5532AZHH05, the C5533AZHH05 adds on-chip SARAM for scalable buffer depth without layout change, while the C5517AZHH05 trades ultra-low-power efficiency for USB integration and doubled MAC throughput - making each optimal for distinct cost, power, and interface priorities.

Availability

TMS320C5532AZHH05 is available at Aetrix Electronics and suitable for wireless audio headsets, portable medical sensors, and industrial voice-interface systems requiring stable component supply across extended product lifecycles.

Supply support for TMS320C5532AZHH05 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 50 years of DSP innovation and broad industrial qualification.

The TMS320C55x family targets ultra-low-power, real-time signal processing in battery-operated audio, voice, and sensor-edge applications - emphasizing deterministic latency, memory efficiency, and flexible peripheral routing.

FAQ

What is the maximum operating frequency of the TMS320C5532AZHH05?

The TMS320C5532AZHH05 operates at a maximum CPU frequency of 50 MHz when powered by a 1.05-V core supply, corresponding to a 20-ns instruction cycle time. It does not support the 100-MHz mode available on the 'A10' speed grade variants - this is fixed by silicon revision and voltage rating, not software configuration.

Does the TMS320C5532AZHH05 include an integrated ADC or USB interface?

No, the TMS320C5532AZHH05 excludes both the 10-bit SAR ADC and USB 2.0 PHY found in the C5535/C5534 variants. Its peripheral set is limited to four I²S interfaces, UART, SPI, I²C, two SD/SDHC controllers, and RTC - making it a streamlined DSP for pure signal processing tasks where external ADC/USB handling is managed by companion ICs.

How much on-chip RAM does the TMS320C5532AZHH05 provide?

The TMS320C5532AZHH05 integrates 64KB of zero-wait-state dual-access RAM (DARAM) and 128KB of on-chip ROM. It contains no single-access RAM (SARAM) - unlike the C5533 (64KB SARAM) or C5534 (192KB SARAM). The DARAM supports simultaneous CPU and DMA access, essential for real-time audio buffering without contention.

What power supply domains are implemented in the TMS320C5532AZHH05?

The TMS320C5532AZHH05 implements four isolated power domains: CVDD (1.05 V core), DVDDIO (1.8/2.5/2.75/3.3 V I/O), DVDDRTC (external 1.8–3.3 V for RTC), and VDDA_ANA (1.3 V analog rail from ANA_LDO). It omits DSP_LDO and USB_LDO - confirming its simplified power architecture versus higher-tier C553x devices.

Is the TMS320C5532AZHH05 pin-compatible with other C553x family members?

Yes, the TMS320C5532AZHH05 shares the same 144-pin ZHH BGA package, pinout, and mechanical footprint with TMS320C5533AZHH05, TMS320C5534AZHH05, and TMS320C5535AZHH05. However, functional pin behavior differs - e.g., USB_DP/DM pins are no-connect on TMS320C5532AZHH05 - requiring careful schematic review despite physical compatibility.