MAX13235EAUP+

Drivers, Receivers, Transceivers Overview

The MAX13235EAUP+ is a dual RS-232 transceiver from the MAX13234E–MAX13237E family, manufactured by Analog Devices/Maxim Integrated. It supports data rates up to 3Mbps and operates on a single +3V to +5.5V supply with a separate logic supply (VL) ranging from 1.62V to VCC. The device features AutoShutdown Plus technology, reducing supply current to 1µA when inputs are inactive for over 30 seconds. It includes integrated charge pumps requiring four 0.1µF capacitors, ±15kV HBM ESD protection, and is housed in a 20-pin TSSOP package.

Drivers, Receivers, Transceivers Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down internal circuitry during periods of inactivity or cable disconnection.
• Integrated low-voltage logic interface allows direct connection to ASICs and microcontrollers operating at various voltage levels via the VL pin.
• Built-in dual charge-pump circuitry generates required RS-232 voltages using only four external capacitors, minimizing board space requirements.

Drivers, Receivers, Transceivers Applications

• Telematics systems
• GPS navigation units
• Industrial control equipment
• Point-of-sale (POS) terminals

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and RoHS compliance status. Ensure that any alternative part numbers selected maintain identical electrical characteristics and pinout configurations to guarantee functional compatibility within the target design.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring high-speed serial communication with minimal power consumption. The separate VL supply input provides flexibility for interfacing with diverse logic families. Verify that external capacitor values meet the minimum requirements specified in the datasheet for the intended supply voltage range to ensure stable charge pump operation.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX1323xE series of 3Mbps RS-232 transceivers. It shares architectural similarities with the MAX13234E, MAX13236E, and MAX13237E, differing primarily in maximum data rate specifications and driver/receiver counts. The 'E' designation indicates an extended temperature range capability suitable for industrial environments.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX13235EEUP+ serves as a verified equivalent within the same product family, offering identical 3Mbps performance and 20-pin TSSOP packaging. Both parts share the same functional diagram and electrical specifications, allowing for direct substitution in existing designs without hardware modifications.