MAX3243ECAI+G1Z

Overview

The MAX3243ECAI+G1Z is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features three drivers and five receivers, operating from a single +3.0V to +5.5V supply. The device supports data rates up to 250kbps and incorporates AutoShutdown technology to reduce supply current to 1µA when the cable is disconnected or peripherals are off. It provides ±15kV ESD protection via Human Body Model and IEC 1000-4-2 standards. The component is housed in a 28-pin SSOP package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• AutoShutdown feature reduces supply current to 1µA upon detecting invalid signal levels
• Integrated dual charge pump generates required voltage levels without external inductors
• Enhanced electrostatic discharge protection on all transmitter outputs and receiver inputs
• Always-active complementary receiver output allows monitoring powered-down circuitry

Applications

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

Procurement Notes

Verify that the ordering suffix G1Z corresponds to the specific tape-and-reel packaging configuration intended for the application. Confirm that the EC designation strictly limits the operating temperature range to commercial levels (0°C to +70°C) rather than extended industrial ranges. Ensure compatibility with the required 28-pin SSOP footprint during procurement planning.

Selection Notes

Select this part when a complete serial port solution with three drivers and five receivers is required for space-constrained designs. The AutoShutdown capability makes it suitable for battery-operated systems where power conservation is critical. Verify that the 250kbps maximum data rate meets the system requirements before choosing this transceiver over higher-speed alternatives.

Part Context

This component belongs to the MAX3221E/MAX3223E/MAX3243E family of low-voltage RS-232 transceivers. While sharing core technologies like AutoShutdown and high ESD protection, the MAX3243E is distinguished by its capacity for three drivers and five receivers. This configuration specifically targets applications requiring full serial port implementation within a compact form factor.

Replacement Considerations

Public confirmed substitute part numbers include V62/06624-01XE and V62/06624-01YE.