MAX3313ECUB+T

Overview

The MAX3313ECUB+T is a low-power, +5V EIA/TIA-232-compatible transceiver featuring one transmitter and one receiver. It operates within a supply voltage range of 4.5V to 5.5V with a typical supply current of 250µA. The device supports data rates up to 460kbps and includes ±15kV Human Body Model ESD protection on all RS-232 I/O pins. A unique INVALID output asserts high when an active RS-232 cable signal is detected. Packaged in a 10-pin µMAX format, it functions across a temperature range of 0°C to +70°C.

Feature Summary

• INVALID Output for Active Signal Detection
• ±15kV ESD Protection on RS-232 Pins
• Single Charge-Pump Voltage Converter
• Low-Power Operation

Applications

• Digital Cameras
• PDAs
• GPS Devices
• POS Systems
• Telecommunications Equipment

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) rather than the extended range variant. Confirm the '+T' designation corresponds to tape-and-reel packaging as specified by the manufacturer's ordering information. Cross-reference the exact part number against official distributor catalogs to ensure compatibility with required environmental specifications.

Selection Notes

Select this component when a single-channel RS-232 interface with integrated invalid-signal detection is required. The MAX3313E differs from the MAX3311E by providing an INVALID output instead of a shutdown pin. Ensure the application requires the commercial temperature grade; otherwise, consider the EEUB variant for extended ranges. Verify that the system can accommodate the necessary three external capacitors for the charge pump.

Part Context

This device belongs to the MAX3311E/MAX3313E family of low-power RS-232 transceivers manufactured by Analog Devices Inc./Maxim Integrated. The family shares identical electrical characteristics and internal architecture, differentiated primarily by the presence of the INVALID output on the MAX3313E versus the shutdown control on the MAX3311E. Both utilize a proprietary low-dropout transmitter stage.

Replacement Considerations

The MAX3311ECUB+T serves as a functional substitute if the INVALID output is unnecessary and a shutdown pin is preferred. Other members of the MAX331x series may be considered if different channel counts or package types are acceptable.