STA321MPL1TR

Audio Special Purpose Overview

The STA321MPLTR is a fully integrated digital audio processor manufactured by STMicroelectronics, designed for high-channel-count applications. It features eight channels and supports I2C and I2S interfaces within a 64-LQFP package (64-TQFP 10x10). The device operates on a supply voltage of 3V to 3.6V and withstands junction temperatures from -40°C to 125°C. Key specifications include full flexible amplification capabilities and surface-mount installation. This component serves as a pre-amplifier solution, integrating complex audio processing functions into a single chip for efficient system design.

Audio Special Purpose Feature Summary

• Eight-channel digital audio processing architecture
• Supports I2C control and I2S serial audio data interfaces
• Operates within a 3V to 3.6V supply voltage range
• Available in a 64-LQFP (10x10 mm) surface-mount package

Audio Special Purpose Applications

• Pre-amplifier circuits
• Digital audio signal processing systems
• Multi-channel audio integration modules

Audio Special Purpose Procurement Notes

Verify the exact ordering suffix against the manufacturer's current datasheet, as variations may exist between TR and other packaging options. Confirm that the 64-LQFP package dimensions match the target PCB footprint requirements. Ensure compatibility with the specified 3V-3.6V power supply rails before finalizing procurement decisions.

Audio Special Purpose Selection Notes

Select this component when an eight-channel digital audio processor is required with I2C/I2S connectivity. The wide operating temperature range (-40°C to 125°C TJ) makes it suitable for industrial or automotive environments. Verify that the 64-pin TQFP package fits the available board space and that the supply voltage aligns with the system's 3V to 3.6V domain.

Audio Special Purpose Part Context

This part belongs to the STA321 family of fully integrated audio processors from STMicroelectronics. The base model STA321 provides up to four channels, while the specific variant referenced here expands capacity to eight channels. It is part of the Sound Terminal family, designed to work alongside digital power stages for complete audio streaming solutions.

Audio Special Purpose Replacement Considerations

The STA311BTR is listed as a similar alternative by distributors. Verify pinout compatibility and channel count differences before substitution.