The SL811HST14 is a USB host controller manufactured by Cypress Semiconductor Corp. It provides a complete solution for adding USB host functionality to embedded systems. This chip handles all USB protocol transactions, allowing the host processor to focus on higher-level application tasks. It supports both low-speed (1.5 Mbps) and full-speed (12 Mbps) USB devices.

Applications

• Embedded systems requiring USB host functionality
• Industrial control systems
• Point-of-sale (POS) terminals
• Medical devices
• Data acquisition systems
• Legacy peripheral upgrades to USB

Features

• USB Specification 1.1 compliant host controller
• Supports both low-speed (1.5 Mbps) and full-speed (12 Mbps) USB devices
• Integrated Serial Interface Engine (SIE)
• Integrated transceiver
• Supports up to 16 endpoints
• Operates from a single 3.3V supply
• Available in a compact TQFP package
• Host mode only operation
• Integrated pull-up resistors for USB data lines

Benefits

• Simplified USB host implementation: The integrated SIE and transceiver reduce the need for external components, simplifying the design process and reducing board space.
• Improved system performance: Offloading USB protocol handling from the host processor improves overall system performance.
• Reduced power consumption: The low-power design extends battery life in portable applications.
• Cost-effective solution: The integration of key USB host functions reduces the overall system cost.
• Faster time to market: The SL811HST14’s ease of use allows developers to quickly add USB host functionality to their products.
• Wide range of supported devices: Compatibility with both low-speed and full-speed USB devices allows for interfacing with a wide range of peripherals.

Technical Specifications

The SL811HST14 operates from a single 3.3V power supply. It includes an integrated Serial Interface Engine (SIE) and a USB transceiver. The chip supports up to 16 endpoints. It is available in a TQFP (Thin Quad Flat Package). It interfaces with the host processor via a serial interface. The operating temperature range is typically -40°C to +85°C.