Maxim Integrated MAX3421EETJ+, USB Controller, USB, 3.3 V, 32-Pin TQFN

Microprocessor-Independent USB Solution
Software Compatible with the MAX3420E USB Peripheral Controller with SPI Interface
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
Level Translators and VL Input Allow Independent System Interface Voltage
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
Intelligent USB SIE
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
Space-Saving Lead-Free TQFP and TQFN Packages (5mm x 5mm)
Applications
Cameras
Custom USB Devices
Desktop Routers
Embedded Systems
Instrumentation
Medical Devices
Microprocessors and DSPs
MP3 Players
PDAs
PLCs
Set-Top Boxes