MAX3318IDB

Overview

The MAX3318IDB is a dual RS-232 transceiver manufactured by Texas Instruments, designed for low-power serial communication applications. It operates within a supply voltage range of 2.25 V to 3 V and supports data rates up to 460 kb/s. The device integrates two drivers and two receivers in a full-duplex configuration, housed in a 20-pin SSOP package. It features a shutdown mode with an operating supply current of 2 mA and provides 15 kV ESD protection on all pins. The component functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates two independent drivers and two receivers for full-duplex RS-232 communication
• Includes shutdown functionality to minimize power consumption during idle periods
• Provides robust electrostatic discharge protection rated at 15 kV on all signal lines

Applications

• Portable battery-powered equipment requiring low-voltage serial interfaces
• Industrial control systems operating in environments with high electromagnetic interference
• Embedded devices needing reliable data transmission with minimal power draw

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 20-pin SSOP format. Cross-reference datasheet revisions to validate electrical characteristics and pinout configurations before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require dual-channel RS-232 connectivity under strict power constraints. It is suitable for systems powered by single 2.5 V or 3 V supplies. Engineers should consider the 460 kb/s speed limit and the specific thermal requirements of the SSOP package when evaluating alternatives for higher performance needs.

Part Context

This part belongs to the MAX3318 series of low-power RS-232 transceivers. It shares functional similarities with other members like the MAX3318IPWR but differs in packaging and potentially temperature specifications. The IDB suffix typically denotes an industrial temperature range and SSOP packaging, distinguishing it from commercial variants or different form factors within the same product family.

Replacement Considerations

The MAX3318EIDBR is listed as a parameter-equivalent alternative. Verify if the extended temperature grade of the 'E' variant meets system requirements. Confirm that pinouts and electrical parameters remain identical to ensure direct replacement without circuit modification.