MAX13235EIUP+

Drivers, Receivers, Transceivers Overview

The MAX13235EIUP+ is a dual RS-232 transceiver operating from a +3.0V to +5.5V supply with a maximum data rate of 3Mbps. It features an independent logic supply (VL) ranging from 1.62V to VCC, enabling direct interface with low-voltage microcontrollers and ASICs. The device incorporates AutoShutdown Plus technology, reducing supply current to 1µA when inputs remain inactive for over 30 seconds. It includes integrated charge pumps requiring only four 0.1µF capacitors and provides ±15kV HBM ESD protection on all pins.

Drivers, Receivers, Transceivers Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down internal charge pumps during periods of inactivity or cable disconnection.
• Integrated low-voltage logic interface allows seamless connection to host systems operating at various voltage levels without external level shifting.
• Robust electrostatic discharge protection ensures reliable operation against high-voltage static events across normal, shutdown, and powered-down states.

Drivers, Receivers, Transceivers Applications

• Telematics
• GPS Systems
• Industrial Systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm package type and RoHS compliance status. Confirm that the VL pin is connected to the appropriate logic supply voltage within the specified range. Ensure external capacitors meet minimum value requirements for stable charge pump operation. Check thermal dissipation limits if operating near maximum temperature boundaries.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring high-speed serial communication with low-power standby capabilities. The separate VL supply is critical for interfacing with modern low-voltage processors. Verify that the application load capacitance does not exceed specifications for the 3Mbps data rate. Consider the TSSOP-20 package dimensions for board layout constraints.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX13234E–MAX13237E family of 3Mbps RS-232 transceivers. The MAX13235E variant specifically provides two drivers and two receivers. Other family members include the MAX13234E and MAX13236E, which are limited to 250kbps data rates. The MAX13237E offers a single driver and receiver configuration.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX13234EEUP+ serves as a functional substitute but operates at a reduced maximum data rate of 250kbps compared to the 3Mbps capability of the MAX13235E. Designers must verify timing requirements before swapping these parts.