MAX3420EETG+

The MAX3420EETG+ from Analog Devices (formerly Maxim Integrated) is a versatile USB peripheral controller designed to simplify the integration of USB functionality into various systems. It complies with USB specification revision 2.0 for full-speed operation and features an integrated full-speed USB transceiver with ±15kV ESD protection.

This controller utilizes an intelligent Serial-Interface Engine (SIE) to handle low-level USB protocol details, including error checking and bus retries, freeing up the host microprocessor. Communication with the host is managed via a programmable 3- or 4-wire SPI interface that operates up to 26MHz. Internal level translators allow the SPI interface to run at system voltages between 1.71V and 3.6V.

The MAX3420EETG+ operates over an extended temperature range of -40°C to +85°C. It is housed in a compact 24-TQFN (4mm x 4mm) package, making it suitable for space-constrained applications. The device also includes four general-purpose inputs and four general-purpose outputs, providing additional flexibility for system design.

Key features include automatic handling of USB flow control and double buffering, built-in endpoint FIFOs, and timers for USB time-sensitive operations. This makes the MAX3420EETG+ a robust solution for applications such as cell phones, PC peripherals, custom USB devices, cameras, and instrumentation.