MAX3311EUB

Overview

The MAX3311EUB is a single-channel RS-232 transceiver manufactured by Analog Devices Inc. (Maxim Integrated). It operates from a +5V supply and supports data rates up to 460kbps while maintaining EIA/TIA-232-compatible output levels. The device integrates a single inverting charge pump requiring only three 0.1µF capacitors. Key electrical parameters include a typical supply current of 250µA during active operation and a shutdown supply current of 1µA. The operating temperature range for the 'E' suffix variant is -40°C to +85°C, housed in a 10-pin µMAX package.

Feature Summary

• Integrates a low-dropout transmitter output stage enabling RS-232 compatibility with a single charge pump
• Features a dedicated 1µA shutdown mode that disables the charge pump and transmitter output
• Maintains receiver activity even when the device is placed in shutdown state

Applications

• Digital Cameras
• GPS Systems
• Point-of-Sale (POS) Terminals
• Telecommunications Equipment

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm the exact temperature grade and package type. Confirm RoHS compliance status and lead-free specifications directly with authorized distributors or the manufacturer's official ordering channels prior to procurement.

Selection Notes

Select this component for applications requiring minimal external capacitance and ultra-low power consumption in standby modes. Ensure the system design accommodates the single +5V supply requirement and verify that the 460kbps maximum data rate aligns with the communication protocol requirements.

Part Context

This part belongs to the MAX3311/MAX3313 family of low-power RS-232 transceivers. The MAX3311 variant specifically provides a shutdown control pin, whereas the MAX3313 includes an INVALID output signal. Both share identical core transceiver functionality and packaging options within the µMAX form factor.

Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX3311CUB for commercial temperature ranges. Verify functional equivalence regarding shutdown behavior and capacitor requirements when substituting.