MAX3245EETX

Overview

The MAX3245EETX is a low-power RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates three drivers and five receivers in a single package, supporting full-duplex communication at data rates up to 1 Mbps. The device operates from a single power supply ranging from 3 V to 5.5 V and features an ultra-low standby current of 1 mA due to AutoShutdown Plus technology. It provides robust protection with 15 kV ESD protection on all pins. The component is housed in a 36-TQFN (6x6 mm) package with an exposed pad for thermal dissipation and is rated for industrial operating temperatures between -40°C and +85°C.

Feature Summary

• AutoShutdown Plus circuitry automatically places the device in a low-power standby mode when the RS-232 bus is idle or the power supply is removed.

Applications

• Portable equipment requiring low-power serial communication
• Industrial control systems with RS-232 interfaces
• Handheld devices and battery-operated instruments

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest documentation before ordering. Confirm that the 36-TQFN footprint matches the design layout. Ensure compliance with RoHS directives if required by the target market regulations.

Selection Notes

Select this component when a combination of three drivers and five receivers is required in a compact surface-mount package. It is suitable for designs needing 1 Mbps performance with minimal quiescent current draw. Consider the 36-TQFN thermal requirements and ensure adequate PCB copper area for heat dissipation during operation.

Part Context

This part belongs to the MAX3245E series of RS-232 transceivers. It shares functional similarities with other members like the MAX3241 but differs in pin count and configuration. The EETX designation specifically indicates the TQFN-EP-36 packaging variant optimized for space-constrained applications.

Replacement Considerations

The MAX3245EAI+ offers similar functionality in an SSOP-28 package. Verify pin compatibility and physical dimensions before substitution. Other variants in the MAX32xx family may require schematic adjustments due to differing driver/receiver counts.