MAX3245EEWI+T

Overview

The MAX3245EEWI+T is a true RS-232 transceiver from the MAX3224–MAX3245 family, manufactured by Analog Devices Inc./Maxim Integrated. It features three drivers and five receivers with guaranteed 1Mbps data rates. The device operates on a single +3.0V to +5.5V supply and achieves a typical 1µA supply current through AutoShutdown Plus technology. It utilizes a dual charge pump requiring four small external capacitors for voltage generation. The component includes an INVALID output for signal detection and R2OUTB for continuous receiver monitoring during shutdown.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when communication lines are idle or disconnected.
• MegaBaud operation ensures reliable high-speed data transmission up to 1Mbps.
• Integrated INVALID output detects valid RS-232 signal levels independently of shutdown states.
• R2OUTB provides a noninverting complementary receiver output that remains active during shutdown.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and handheld equipment
• Battery-powered peripherals and printers

Procurement Notes

Verify the specific suffix EEWI corresponds to the required temperature range (-40°C to +85°C) and package type (28-WFQFN). Confirm RoHS compliance status as indicated by the '+' designation in the ordering information. Cross-reference the manufacturer's latest datasheet revision to ensure pinout compatibility with existing designs.

Selection Notes

Select this model over the MAX3244 variant when 1Mbps data rate capability is required instead of the 250kbps limit. Ensure the design accommodates the necessary four external charge-pump capacitors. Consider the R2OUTB feature if ring indicator monitoring is needed while other receivers are tri-stated.

Part Context

This component belongs to the MAX3224–MAX3245 series of low-power RS-232 transceivers. It shares the same core architecture and AutoShutdown Plus features as siblings like the MAX3241E and MAX3232E but offers higher data rate performance. The 'E' suffix denotes the extended industrial temperature range.

Replacement Considerations

Public confirmed substitute part numbers include MAX3245EETX+T and MAX3245ECAI.