MAX3232CPWRE4

Overview

The MAX3232CPWRE4 is a 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 250 kb/s. The device features full-duplex communication with two drivers and two receivers, housed in a 16-TSSOP surface-mount package. It functions across an industrial temperature range of -40°C to +85°C and draws approximately 1 mA of supply current. The component includes integrated charge pumps for RS-232 signal generation.

Feature Summary

• Integrated charge pump eliminates the need for external capacitors
• Provides ±15 kV IEC electrostatic discharge protection
• Operates from a single 3-V to 5.5-V power supply

Applications

• Industrial serial communication interfaces
• Portable battery-powered equipment
• Modems and paging terminals

Procurement Notes

Verify the suffix E4 indicates lead-free status compliant with RoHS directives. Confirm the CPWR designation corresponds to the TSSOP-16 package variant. Ensure the C grade matches the required -40°C to +85°C operating temperature range for the specific application environment.

Selection Notes

Select this component when a dual-channel RS-232 interface is required in a compact surface-mount form factor. The wide supply voltage range accommodates both 3.3-V and 5-V systems. Verify that the 250-kb/s speed meets the system's baud rate requirements and that the TSSOP-16 footprint fits the PCB layout constraints.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers. The 'E4' suffix typically denotes environmental compliance, specifically lead-free construction. It serves as a direct replacement for older non-compliant versions while maintaining pinout compatibility with standard MAX3232 designs.

Replacement Considerations

The MAX3232CPWR is a parameter-equivalent alternative without the E4 suffix. Other family members like the MAX3232EIPWR offer extended temperature ranges or different packaging options.