MAX3222ECPWRG4

Overview

The MAX3222ECPWRG4 is a low-power, dual driver/receiver RS-232 transceiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device features full-duplex communication with two drivers and two receivers. It includes a shutdown mode that reduces power consumption to less than 1 µA. The component is housed in a 20-pin TSSOP package and is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated ESD protection on all RS-232 lines providing robustness against electrostatic discharge events.
• Low quiescent current operation with a dedicated shutdown pin for significant power reduction during idle periods.
• Single capacitor design utilizing small external charge pumps to generate internal voltage levels.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable battery-powered equipment needing low-power RS-232 connectivity.
• Modem and fax machine interface circuits.

Procurement Notes

Verify the G4 suffix indicates compliance with specific environmental standards as defined by the manufacturer. Confirm the package type matches the target PCB footprint requirements. Ensure the extended industrial temperature range aligns with the operational environment specifications. Cross-reference the datasheet revision to confirm electrical characteristics remain consistent with the design intent.

Selection Notes

Select this component when dual-channel RS-232 communication is required with low power constraints. Compare against similar devices based on ESD protection levels and capacitor size requirements. Consider the TSSOP-20 package availability for surface-mount assembly processes. Evaluate the shutdown functionality needs against system power management strategies.

Part Context

This part belongs to the MAX3222 family of RS-232 transceivers designed for low-voltage applications. The 'E' designation typically denotes an extended industrial temperature range compared to commercial variants. The 'G4' suffix generally signifies lead-free packaging and enhanced environmental compliance according to Texas Instruments standards.

Replacement Considerations

MAX3222ECPW serves as a direct functional equivalent without the G4 suffix. TRS3223ECPWR offers similar performance with potential pinout or feature variations requiring schematic review. SN75C3223PWR provides comparable RS-232 functionality but may differ in specific electrical parameters.