MAX3313ECUB

Overview

The MAX3313ECUB is a low-power, single RS-232 transceiver designed for operation from a +5V supply. It integrates one transmitter and one receiver within a compact 10-pin µMAX package. The device supports data rates up to 460kbps while maintaining EIA/TIA-232-compatible output levels using a proprietary low-dropout output stage. A key feature is the INVALID output pin, which asserts high when an active RS-232 cable signal is detected, indicating peripheral connection. The component operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• INVALID Output: Asserts high when an active RS-232 cable signal is connected, signaling host devices that a peripheral is attached to the communication port.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'CUB' to confirm the commercial temperature range (0°C to +70°C) and 10-pin µMAX package configuration. Ensure compatibility with standard +5V logic interfaces and check for required external capacitor values for the internal charge pump circuitry during integration.

Selection Notes

Select this component for applications requiring robust ±15kV ESD protection on I/O pins without the need for a shutdown mode. Unlike the MAX3311E variant, this part lacks a shutdown pin but provides the INVALID status indicator. Ensure the design accommodates the single charge-pump requirement using three 0.1µF capacitors for proper voltage inversion.

Part Context

This device belongs to the MAX3311E/MAX3313E family of low-power, 5V EIA/TIA-232-compatible transceivers. It shares the same core architecture as the MAX3311E but replaces the shutdown functionality with an INVALID output signal detector. Both variants utilize a single inverting charge pump to generate negative voltage from a single +5V supply.

Replacement Considerations

MAX3311ECUB

FAQ

What is the function of the INVALID output pin?

The INVALID output asserts high when an active RS-32 cable signal is connected to the receiver input, signaling to the host that a peripheral is connected to the communication port.

Does the MAX3313ECUB support a shutdown mode?

No, the MAX3313ECUB does not feature a shutdown mode or SHDN pin; this functionality is exclusive to the MAX3311E variant.

What is the maximum data rate supported by this transceiver?

The device maintains RS-232-compatible output levels at data rates up to 460kbps under worst-case load conditions.