MAX3243ECDW

Overview

The MAX3243ECDW is a Texas Instruments RS-232 transceiver in a 28-pin SOIC package. It operates on a single 3 V to 5.5 V supply and features three drivers and five receivers. The device supports full-duplex communication at data rates up to 500 kb/s with a propagation delay of 0.15 µs. It includes a shutdown mode with 1 mA typical operating current and provides ±15 kV ESD protection. The component functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates three line drivers and five line receivers for multi-channel serial communication
• Provides ±15 kV electrostatic discharge protection on RS-232 bus pins
• Includes a dedicated shutdown pin to minimize power consumption during idle periods

Applications

• Industrial control systems requiring robust serial interfaces
• Portable battery-powered equipment needing low standby current
• Computer peripheral connections adhering to TIA/EIA-232-F standards

Procurement Notes

Verify the specific suffix 'ECDW' confirms the commercial temperature grade (0°C to +70°C) and SOIC-28 package variant. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor specifications before finalizing procurement orders.

Selection Notes

Select this part when a 28-pin surface-mount solution is required for three transmit and five receive channels. Ensure the application environment remains within the 0°C to +70°C operational limit. Verify that the 500 kb/s data rate meets system timing requirements and that external capacitors fit the board layout constraints.

Part Context

This component belongs to the MAX3243E series, which offers enhanced performance over standard RS-232 transceivers. The 'E' designation typically indicates improved specifications such as higher data rates or better ESD tolerance compared to earlier generations like the MAX3243C.

Replacement Considerations

The MAX3243EIDWR serves as an industrial-grade alternative with extended temperature capabilities (-40°C to +85°C). Other compatible variants include the MAX3243ECRHBR in a VQFN package or the MAX3243EIDBR in SSOP format.