MAX3245CAI+TG1Z

Overview

The MAX3245CAI+TG1Z is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features three drivers and five receivers, supporting full-duplex communication at data rates up to 1Mbps. The device operates from a single +3.0V to +5.5V supply and achieves a typical supply current of 1μA through AutoShutdown Plus technology. It includes ±15kV ESD protection on all inputs and outputs. The component is housed in a 28-pin SSOP package and is rated for an operating temperature range of 0°C to +70°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption when the interface is idle or disconnected.
• Integrated dual charge pump generates internal +5.5V and -5.5V supplies using only four small capacitors.
• Enhanced electrostatic discharge protection ensures robustness against high-voltage static events.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals

Procurement Notes

Verify the specific ordering suffixes against official manufacturer documentation to confirm exact package type, temperature rating, and RoHS compliance status before procurement. Confirm availability with authorized distributors as stock levels fluctuate. Ensure the selected variant matches the required pinout and thermal characteristics for the target PCB design.

Selection Notes

Select this component for applications requiring low-power RS-232 connectivity in space-constrained environments. The 1Mbps data rate supports high-speed peripherals like ISDN modems. Verify that the system voltage falls within the 3.0V to 5.5V range and that the thermal requirements align with the 28-SSOP package specifications.

Part Context

This part belongs to the MAX3245E family of RS-232 transceivers designed for 3V-powered systems. It shares core electrical characteristics with other variants in the series but differs in packaging and temperature grade. The 'CAI' designation typically indicates commercial temperature range and SSOP packaging, while '+TG1Z' denotes lead-free/RoHS compliance.

Replacement Considerations

Compatible substitutes include MAX3245ECAI+T and MAX3245EETX+T. Verify that replacement parts maintain identical driver/receiver counts, data rates, and package dimensions to ensure mechanical and electrical compatibility without circuit redesign.