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MAX3421EEHJ+ USB Peripheral/Host Controller with SPI Interface, TQFP-32, Maxim Integrated
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. Any SPI master (microprocessor, ASIC, DSP, etc.) can add USB peripheral or host functionality using the simple 3- or 4-wire SPI interface.
- Microprocessor-Independent USB Solution
- Complies with USB Specification Revision 2.0 (Full-Speed 12Mbps Peripheral, Full-/Low-Speed 12Mbps/1.5Mbps Host)
- Integrated USB Transceiver
- Firmware/Hardware Control of an Internal D+ Pullup Resistor (Peripheral Mode) and D+/D- Pulldown Resistors (Host Mode)
- Programmable 3- or 4-Wire, 26MHz SPI Interface
- Internal Comparator Detects VBUS for Self-Powered Peripheral Applications
- ESD Protection on D+, D-, and VBCOMP
- Interrupt Output Pin (Level- or Programmable-Edge) Allows Polled or Interrupt-Driven SPI Interface
- Eight General-Purpose Inputs and Eight General-Purpose Outputs
- Interrupt Signal for General-Purpose Input Pins, Programmable Edge Polarity
- Automatically Handles USB Flow Control and Double Buffering
- Handles Low-Level USB Signaling Details
- Contains Timers for USB Time-Sensitive Operations so SPI Master Does Not Need to Time Events
Applications
- Cameras
- Custom USB Devices
- Desktop Routers
- Embedded Systems
- Instrumentation
- Medical Devices
- Microprocessors and DSPs
- MP3 Players
- PDAs
- PLCs
- Set-Top Boxes
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