MAX3221CPWRG4

Overview

The MAX3221CPWRG4 is a single-channel RS-232 transceiver manufactured by Texas Instruments. It operates on a single 3V to 5.5V power supply and integrates dual charge pumps to generate the required internal voltages, eliminating the need for external ±12V supplies. The device supports data rates up to 250kbps with a typical slew rate of 30V/μs. It features one driver and one receiver in full-duplex operation. The component is housed in a 16-TSSOP package and is rated for an operating temperature range of -40°C to +85°C. It includes ±15kV ESD protection on the bus pins.

Feature Summary

• Integrates dual charge pumps for single-supply operation without external high-voltage requirements
• Provides robust ±15kV ESD protection on RS-232 bus lines
• Features automatic shutdown mode to minimize power consumption during idle periods

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered devices needing low-power interface solutions
• Embedded systems utilizing TIA/EIA-232-F or V.28 standards

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the package type remains 16-TSSOP and check for any pin-to-pin compatible alternatives if supply constraints exist. Ensure the operating temperature grade matches the C (Commercial) designation for the intended environment.

Selection Notes

Select this component when a single-channel RS-232 interface is required with low standby current capabilities. It is suitable for designs constrained by space due to its small footprint and minimal external capacitor count. Consider the 250kbps speed limit and ensure it meets the baud rate requirements of the target application.

Part Context

This part belongs to the MAX3221 family of single-channel RS-232 line drivers and receivers. The 'G4' suffix typically denotes a lead-free and RoHS-compliant version of the standard MAX3221 device. It shares functional similarities with other members of the MAX32xx series but is distinct in channel count and performance specifications.

Replacement Considerations

MAX3221EIPWR is a parameter-equivalent alternative from Texas Instruments offering an extended industrial temperature range.