MAX13235EETP+T

Drivers, Receivers, Transceivers Overview

The MAX13235EETP+T is a dual RS-232 transceiver from the MAX1323x family, manufactured by Analog Devices (Maxim Integrated). It supports data rates up to 3Mbps and operates on a single +3V to +5.5V supply. The device features an independent logic supply input (VL) ranging from 1.62V to VCC, enabling direct interface with low-voltage ASICs and microcontrollers. It integrates a charge-pump circuit requiring only four external 0.1µF capacitors for operation. The component includes AutoShutdown Plus technology, reducing supply current to 1µA when inputs are inactive for over 30 seconds. It provides ±15kV HBM ESD protection and operates within a temperature range of -40°C to +85°C in a 20-pin TQFN-EP package.

Drivers, Receivers, Transceivers Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by entering a low-power shutdown mode when the RS-232 cable is disconnected or transmitter/receiver inputs remain inactive for more than 30 seconds.
• Integrated low-voltage logic interface allows flexible connection to UARTs and communication controllers with varying logic levels through a separate VL supply pin.
• Built-in dual charge-pump voltage converter generates internal +5.5V and -5.5V supplies using only four external capacitors, eliminating the need for bipolar power sources.
• Robust electrostatic discharge protection on receiver inputs and driver outputs withstands ±15kV Human Body Model discharges without damage.

Drivers, Receivers, Transceivers Applications

• Telematics systems
• GPS modules
• Industrial control equipment
• Portable electronic devices
• Wireless communication modules

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Ensure that the procurement channel provides valid traceability for the Analog Devices/Maxim Integrated brand. Confirm that the received components match the specified 20-pin TQFN-EP form factor before integration into the design.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring high-speed RS-232 communication at 3Mbps with minimal external component count. The independent VL supply makes it suitable for interfacing with modern low-voltage processors. Consider the exposed pad thermal requirements during PCB layout to ensure reliable operation across the specified industrial temperature range.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX13234E–MAX13237E family of 3Mbps RS-232 transceivers. While other members like the MAX13234E offer 250kbps speeds, the MAX13235E specifically targets higher throughput applications. The 'E' suffix denotes the extended temperature range, and 'TP' indicates the TQFN-EP package configuration.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX13234EETP+ serves as a functional substitute within the same family but is limited to a maximum data rate of 250kbps. Designers must verify if the reduced speed meets system timing requirements before substituting.