MAX3243MPWREP

Overview

The MAX3243MPWREP is a military-enhanced, multi-channel RS-232 transceiver manufactured by Texas Instruments. It operates on a single power supply ranging from 3 V to 5.5 V and supports full-duplex communication at data rates up to 250 kb/s. The device integrates three drivers and five receivers within a TSSOP-28 surface-mount package. It features low quiescent current of 1 mA and includes a shutdown mode for power conservation. The component provides robust ESD protection rated at 15 kV and functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Military-grade reliability with extended temperature operation capabilities
• Integrated charge pump circuitry for generating RS-232 voltage levels
• Low power consumption with dedicated shutdown control functionality

Applications

• Industrial control systems requiring high reliability in harsh environments
• Military and aerospace communication interfaces
• Data acquisition systems operating under extreme thermal conditions

Procurement Notes

Verify the suffix REP indicates military enhancement and specific qualification standards when sourcing. Confirm the TSSOP-28 package type matches the target PCB footprint. Ensure the supplier provides traceability documentation required for defense or critical infrastructure applications. Check RoHS compliance status against specific project regulations.

Selection Notes

Select this component when military-grade performance and wide temperature tolerance are mandatory. Compare against commercial variants if environmental constraints allow lower cost options. Verify that the 250 kb/s speed meets system timing requirements. Ensure the 3-to-5.5 V supply range aligns with available board power rails.

Part Context

This part belongs to the MAX3243 family of multi-channel RS-232 transceivers. It shares functional similarities with other members like the MAX3243IDW but differs in qualification level and temperature range. The MPWREP designation specifies the military grade variant in a TSSOP-28 reel packaging format, distinguishing it from standard industrial or commercial offerings.

Replacement Considerations

The TRS3243ECRHBR is a verified equivalent alternative offering similar electrical characteristics. Both devices provide three drivers and five receivers with comparable data rates. Verify pinout compatibility and package dimensions before substitution to ensure seamless integration into existing designs.