MAX3232CPWR

Overview

The MAX3232CPWR is a dual transceiver from Texas Instruments designed for RS-232 communication. It operates on a single 3V to 5.5V power supply and supports data rates up to 250kbps. The device integrates two drivers and two receivers with full duplex capability. It features ±15kV ESD protection on all lines, including ground. Typical supply current is 300µA. It requires four external 0.1µF capacitors for the charge pump circuit. The component is housed in a 16-pin TSSOP package suitable for surface mount applications.

Feature Summary

• Integrated dual charge pump enabling operation from a single low-voltage supply
• Robust electrostatic discharge protection exceeding ±15kV on serial port connections
• Low power consumption with typical standby current of 300µA
• Compliance with TIA/EIA-232-F interface standards

Applications

• Portable equipment requiring battery-powered serial communication
• Computer peripherals and modems
• Industrial control systems with RS-232 interfaces
• Embedded systems connecting microcontrollers to serial ports

Procurement Notes

Verify the specific suffix CPWR indicates the commercial temperature range and TSSOP-16 packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to integration. Ensure ordering specifications match the required thermal and mechanical constraints for the target PCB design.

Selection Notes

Select this variant when a commercial temperature range is sufficient for the application environment. The TSSOP-16 package offers a compact footprint compared to larger SOIC options. Verify that the 250kbps data rate meets system requirements, as higher-speed alternatives exist within the same family if faster signaling is necessary.

Part Context

This component belongs to the MAX3232 series of multichannel RS-232 line drivers and receivers. The series is widely used for converting logic-level signals to RS-232 voltage levels. The CPWR suffix specifically denotes the commercial grade temperature rating and the plastic thin-shrink small-outline package type manufactured by Texas Instruments.

Replacement Considerations

• MAX3232ECPWR
• MAX3232IDWR
• MAX3232CDR