MAX13234EEUP+T

Drivers, Receivers, Transceivers Overview

The MAX13234EEUP+T is a dual RS-232 transceiver from the MAX13234E family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +3V to +5.5V supply voltage and supports a maximum data rate of 250kbps. The device features two drivers and two receivers in a 20-pin TSSOP package. It includes an integrated low-voltage logic interface (VL) ranging from 1.62V to VCC for direct connection to microcontrollers. Supply current drops to 1µA in shutdown mode via AutoShutdown Plus technology. ESD protection is rated at ±15kV HBM.

Drivers, Receivers, Transceivers Feature Summary

• AutoShutdown Plus technology automatically reduces power consumption by entering a low-power shutdown state when inputs are inactive or cables are disconnected.
• Integrated low-voltage logic interface allows flexible interfacing with various UARTs and communication controllers operating at different logic levels.
• Built-in dual charge-pump circuitry generates required RS-232 voltages using only four external capacitors.

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the component marking against the official datasheet to confirm authenticity. Ensure the ordering suffix matches the specific package type and RoHS compliance requirements. Check for lead-free status if required by assembly standards. Confirm the manufacturer source is authorized to avoid counterfeit components.

Drivers, Receivers, Transceivers Selection Notes

Select this part when a 2x2 RS-232 interface is needed with high-speed data rates up to 250kbps. It is suitable for designs requiring low standby power through automatic shutdown features. Use this component when interfacing with low-voltage logic supplies down to 1.62V. Ensure the application environment stays within the -40°C to +85°C temperature range.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX13234E–MAX13237E family of 3Mbps RS-232 transceivers. It shares architectural similarities with the MAX13235E but offers a lower guaranteed data rate of 250kbps. The family utilizes Maxim’s AutoShutdown Plus feature and requires minimal external capacitance for operation.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX13235EEUP+T is a functional substitute within the same package that supports higher data rates up to 3Mbps. Other compatible alternatives include the MAX13223EEUP+T for standard speed applications. Verify pin compatibility and electrical specifications before substitution.

Drivers, Receivers, Transceivers FAQ

How does the AutoShutdown Plus feature function?

The device enters a low-power shutdown mode when all receiver and transmitter inputs remain inactive for more than 30 seconds or when the RS-232 cable is disconnected, reducing supply current to 1µA.

What is the purpose of the VL pin?

The VL pin serves as the logic-level supply input, setting the receiver output levels and transmitter input thresholds to match the host system's logic voltage, which can range from 1.62V to VCC.

What ESD protection ratings does the MAX13234EEUP+T support?

The device provides ±15kV Human Body Model (HBM) protection and meets IEC 61000-4-2 Level 4 standards, offering ±15kV air discharge and ±8kV contact discharge protection.