MAX3421E USB Peripheral/Host Controller With SPI Interface

The MAX3421E USB peripheral/host controller contains the digital Logic and Analog circuitry necessary to implement a full-speed USB peripheral or a full-/low-speed host compliant to USB specification rev 2.0. A built-in transceiver features 15kV ESD protection and programmable USB connect and disconnect. An internal serial Interface engine (SIE) handles low-level USB protocol details such as error checking and bus retries. The MAX3421E operates using a Register set accessed by an SPI" Interface that operates up to 26MHz. Any SPI master (microprocessor, ASIC DSP etc.) CAN add USB peripheral or host functionality using the simple 3- or 4-wire SPI Interface
The MAX3421E makes the vast collection of USB peripherals available to any Microprocessor ASIC or DSP when it operates as a USB host. For point-to-point solutions, for example, a USB keyboard or mouse interfaced to an embedded system, the firmware that operates the MAX3421E CAN be simple since only a targeted device is supported.
Internal Level Translators allow the SPI Interface to run at a system voltage between 1.4V and 3.6V. USB-timed operations are done inside the MAX3421E with interrupts provided at completion so an SPI master does not need Timers to meet USB Timing requirements. The MAX3421E includes eight general-purpose inputs and outputs so any Microprocessor that uses I/O pins to implement the SPI Interface CAN reclaim the I/O pins and gain additional ones.
The MAX3421E operates over the extended -40C to +85C temperature range and is available in a 32-pin TQFP package (5mm x 5mm) and a 32-pin TQFN package (5mm x 5mm).
By Maxim Integrated Products
MAX3421E 's PackagesMAX3421E 's pdf datasheet

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MAX3421E Application circuits
MAX3421E circuits
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