MAX3237ECDBG4

Overview

The MAX3237ECDBG4 is a low-power RS-232 transceiver manufactured by Texas Instruments, designed for mobile and battery-powered applications. It integrates five drivers and three receivers within a single package, supporting full-duplex communication at data rates up to 1 Mb/s. The device operates from a single 3 V to 5.5 V supply and features an internal charge pump that requires only external 0.1 µF capacitors. Key electrical parameters include a maximum supply voltage of 5.5 V, a minimum operating temperature of -40 °C, and a maximum operating temperature of +85 °C. It is housed in a 28-pin TSSOP package.

Feature Summary

• Integrates five independent drivers and three receivers for comprehensive RS-232 connectivity
• Operates on a single 3 V to 5.5 V power supply with internal charge pump circuitry
• Supports data transmission speeds up to 1 Mb/s for efficient serial communication
• Designed for extended industrial temperature ranges suitable for harsh environments

Applications

• Mobile phones and personal digital assistants (PDAs)
• Laptop computers and portable computing devices
• Industrial control systems requiring robust serial interfaces
• Handheld terminals and barcode scanners

Procurement Notes

Verify the specific suffix 'DB' corresponds to the TSSOP-28 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the component matches the required operating temperature range of -40 °C to +85 °C for your specific deployment environment before finalizing procurement.

Selection Notes

Select this component when a high channel count (five drivers, three receivers) is required in a compact form factor. It is suitable for designs needing operation from a single low-voltage supply without external negative voltage generation. Consider thermal performance and PCB space constraints associated with the TSSOP-28 package during layout planning.

Part Context

This part belongs to the MAX3237 family of RS-232 transceivers from Texas Instruments. The family is characterized by low power consumption and compatibility with standard RS-232 protocols. Variants within the series typically differ by package type, temperature grade, and pin configuration, serving diverse needs from consumer electronics to industrial automation.

Replacement Considerations

Direct substitutes include other MAX3237 variants such as MAX3237ECPWR or MAX3237ECDWG4. Verify pinout compatibility and electrical specifications before substitution. Alternative manufacturers may offer functionally similar parts, but rigorous testing is required to ensure interface compatibility.