SL811HST-AC

Application Specific Microcontrollers Overview

The SL811HST-AC is a USB host controller integrated circuit manufactured by Infineon Technologies, designed for full-speed and low-speed communication. It complies with the USB 2.0 standard and supports data rates of 12 Mb/s and 1.5 Mb/s. The device operates within a supply voltage range of 3 V to 3.45 V, drawing a typical operating current of 21 mA. It is housed in a TQFP-48 surface-mount package and functions within an ambient temperature range of 0°C to +65°C.

Application Specific Microcontrollers Feature Summary

• USB 2.0 compliant host controller supporting Full Speed (12 Mb/s) and Low Speed (1.5 Mb/s) modes
• Integrated 256-byte buffer for data handling
• Operates on a single 3 V to 3.45 V power supply
• Available in a 48-pin TQFP surface-mount package

Application Specific Microcontrollers Applications

• Portable computing devices requiring USB host connectivity
• Industrial control systems utilizing USB peripherals
• Embedded systems interfacing with USB input devices

Application Specific Microcontrollers Procurement Notes

This component is listed as discontinued or end-of-life by the manufacturer. Availability is restricted, and sourcing may require checking secondary market distributors. Verify the specific suffix 'AXC' against the requested 'AC' variant, as suffixes often denote packaging or revision differences that do not alter core functionality but affect physical compatibility.

Application Specific Microcontrollers Selection Notes

Select this part for applications requiring a standalone USB host controller with low power consumption. Ensure the design accommodates the 3 V to 3.45 V supply rail and the thermal requirements of the TQFP-48 package within the 0°C to +65°C operating range. Confirm if the legacy status impacts long-term supply chain stability.

Application Specific Microcontrollers Part Context

The SL811 series represents Infineon's legacy USB host controller solutions. The SL811HST-AC is part of this family, offering a compact solution for integrating USB host capabilities into space-constrained designs. It serves as a bridge between microcontrollers and USB peripherals without requiring complex external logic.

Application Specific Microcontrollers Replacement Considerations

Due to the discontinued status, direct replacements should be evaluated based on pin compatibility and electrical specifications. Check for updated USB controller families from Infineon or other manufacturers that support USB 2.0 FS/LS modes in similar packages.