SL811T

This section lists the absolute maximum ratings of the SL811S. Stresses above those listed can cause permanent damage to the device. Exposure to maximum rated conditions for extended periods can affect device operation and reliability.

The SL811T USB Slave Controller is a single chip USB peripheral device that interfaces to microprocessors. The SL811S/T USB Controller incorporates USB Serial Interface functionality along with internal drivers and receivers that connect directly to the USB interface connector. The SL811S/T supports and operates in USB full speed mode, at 12 Mbits per second and in USB Slow speed mode at 1.5 Mbits per second.

The local host interface provides an 8-bit data path, with interrupt and DMA support to allow an easy interface to standard microprocessors or microcontrollers. Internally, the SL811S/T contains a 256-byte RAM data buffer. The RAM contains both control registers and data buffers. SL811S/T comes in two packages - 28-pin PLCC (SL811S) and 48-pin LPQFP (SL811T). Both products require a 3.3 VDC power supply.

The SL811T can interface to any microprocessor, microcontroller, or DSP. It can also interface directly to a variety of buses including ISA, PCMCIA and others through its 8-bit bidirectional Data port and through the following control signals - CS, WR, RD, INTR, and A0. Both INTEL and MOTOROLA buses, and others like them, are supported.

The SL811T USB Slave Controller is designed to conform to USB specification 1.1 for full-speed, and low speed operation. The USB specification should be referred to as a reference when designing with the SL811S/T.