MAX3245ECAI+G1Z

Overview

The MAX3245ECAI+G1Z 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 on a single +3.0V to +5.5V supply and incorporates AutoShutdown Plus technology to achieve a typical supply current of 1μA when idle. It includes dual charge pumps requiring only four small capacitors for voltage generation. The component provides enhanced ESD protection rated at ±15kV (HBM) and ±8kV (IEC Contact). It is housed in a 28-pin SSOP package and is designed for operation within the commercial temperature range of 0°C to +70°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down internal charge pumps during periods of inactivity.
• Integrated dual charge pump generates required positive and negative voltages using minimal external capacitance.
• Robust electrostatic discharge protection ensures signal integrity across transmitter outputs and receiver inputs.
• Dedicated INVALID output pin indicates the presence or absence of valid RS-232 signaling levels.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals such as printers
• Automotive systems

Procurement Notes

Verify that the ordering suffix G1Z corresponds to the specific tape-and-reel packaging configuration intended for your assembly process. Confirm that the lead-free status indicated by the plus sign meets your environmental compliance requirements. Ensure the 28-SSOP footprint matches your board design guidelines before finalizing procurement.

Selection Notes

Select this component when designing systems requiring high-speed 1Mbps RS-232 communication with strict power constraints. The integrated AutoShutdown Plus feature makes it suitable for battery-operated applications where minimizing standby current is critical. Verify that the 0°C to +70°C operating temperature range aligns with your system's environmental specifications.

Part Context

This part belongs to the MAX32xxE family of low-power RS-232 transceivers. It shares core architectural features with the MAX3244E but offers higher data rate capabilities. The family utilizes Maxim's proprietary charge pump technology to enable operation from a single low-voltage supply without requiring external inverting regulators.

Replacement Considerations

The MAX3244E serves as a functional alternative within the same series, though it guarantees a lower maximum data rate of 250kbps compared to the 1Mbps capability of the MAX3245E. Both parts share identical pinouts and control logic.