MAX3346EEUD+

Overview

The MAX3346EEUD+ is a bidirectional USB transceiver in a 14-pin TSSOP package, compliant with USB 1.1 and 2.0 specifications for low-speed (1.5Mbps) and full-speed (12Mbps) operation. It features an internal linear regulator providing a 3.3V output from a VCC input range of 4.0V to 5.5V. The system-side logic operates on VL voltages between 1.65V and 3.6V. Key electrical parameters include ±15kV Human Body Model ESD protection on D+ and D- pins, an operating supply current of 8mA at full speed, and a suspend mode current draw of less than 40µA. The device supports software-controlled enumeration via the ENUM pin.

Feature Summary

• Internal 1.5kΩ pullup resistor for automatic low/full-speed selection
• Logic-selectable suspend mode for ultra-low power consumption
• Software-controllable enumerate function for dynamic reconnection
• Robust ±15kV ESD protection on differential data lines

Applications

• Cell Phones
• PC Peripherals
• Data Cradles
• PDAs
• MP3 Players

Procurement Notes

Verify the specific suffix EEUD corresponds to the 14-pin TSSOP package variant when sourcing components. Confirm that the ordering information matches the required temperature range of -40°C to +85°C. Ensure compatibility with the intended PCB footprint and soldering profile for surface-mount assembly.

Selection Notes

Select this component for designs requiring direct powering from the USB cable without external voltage regulators. It is suitable for applications needing low-voltage ASIC compatibility down to 1.65V. Consider the TSSOP-14 package constraints if board space allows, noting the alternative UCSP option exists for more compact form factors.

Part Context

This part belongs to the MAX3346E family of USB transceivers manufactured by Analog Devices / Maxim Integrated. The EEUD designation specifically identifies the extended temperature version housed in a 14-pin Thin Shrink Small Outline Package (TSSOP). It serves as the interface between host controllers and USB peripherals.

Replacement Considerations

The MAX3346EEBE-T is a functional equivalent within the same family but utilizes a 4x4 UCSP package instead of TSSOP. Direct pin-to-pin replacement is not possible due to the different physical footprint and pinout arrangement.