SL811HST-AXC

Application Specific Microcontrollers Overview

The SL811HST-AXC is an embedded USB host and slave controller manufactured by Infineon Technologies, formerly developed by Cypress Semiconductor. It supports USB Specification 1.1 for full-speed (12 Mbps) and low-speed (1.5 Mbps) transfers in both master and slave modes. The device features a 48-pin TQFP package and operates on a 3.3 V power supply with 5 V-tolerant I/O logic. It includes an 8-bit bidirectional data path, on-chip Serial Interface Engine (SIE), USB transceivers, and 256 bytes of internal SRAM buffer memory.

Application Specific Microcontrollers Feature Summary

• Supports USB 1.1 full-speed (12 Mbps) and low-speed (1.5 Mbps) communication in host or peripheral modes.
• Integrates 256-byte internal SRAM for control registers and data buffering with ping-pong buffer support.
• Features an 8-bit microprocessor interface compatible with standard CPUs without external glue logic.
• Includes built-in PLL clock generator for 12 MHz or 48 MHz crystal/oscillator inputs.

Application Specific Microcontrollers Applications

• Embedded systems requiring USB host connectivity to peripherals like flash drives.
• Microcontroller-based devices needing USB slave functionality for PC communication.
• Industrial automation interfaces connecting to USB-enabled sensors or controllers.

Application Specific Microcontrollers Procurement Notes

Verify component authenticity through authorized distributors as the part may be subject to discontinuation notices. Confirm RoHS compliance status via official material content sheets before integration. Ensure handling procedures account for moisture sensitivity levels specified in the datasheet during storage and reflow processes.

Application Specific Microcontrollers Selection Notes

Select this controller for applications requiring dual-mode USB capability within resource-constrained embedded environments. Ensure the host processor supports the required 8-bit parallel interface timing. Verify that the system design accommodates the 48-pin TQFP package dimensions and thermal requirements for continuous operation.

Application Specific Microcontrollers Part Context

This component belongs to the SL811HS family of embedded USB controllers. Infineon Technologies acquired Cypress Semiconductor, which originally developed this product line. The SL811HST-AXC designation specifically refers to the Pb-free version housed in a 48-pin TQFP package, maintaining functional compatibility with earlier iterations of the SL811HS series.

Application Specific Microcontrollers Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate legacy inventory availability or consult Infineon technical support for current portfolio alternatives if new production is required.