MAX3232CPWRG4

Overview

The MAX3232CPWRG4 is a low-power, multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3-V to 5.5-V supply and includes charge pump circuitry requiring only four external 0.1-F capacitors. The device features two drivers and two receivers, supporting full-duplex communication at data rates up to 250 kb/s. It is housed in a TSSOP-16 package with an operating temperature range of 0°C to +70°C. Key electrical specifications include a typical supply current of 1 mA and ±15-kV ESD protection on all RS-232 lines.

Feature Summary

• Integrated charge pump eliminates the need for dual voltage supplies
• Low power consumption suitable for battery-operated systems
• Robust electrostatic discharge protection on signal lines

Applications

• Portable equipment requiring serial communication
• Modems and fax machines
• Handheld terminals and POS systems

Procurement Notes

Verify the suffix G4 indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the CPWR designation corresponds to the commercial temperature grade and TSSOP-16 package. Ensure ordering documentation matches the specific manufacturer part number to avoid confusion with non-RoHS variants or different package styles within the same functional family.

Selection Notes

Select this component when a commercial temperature range (0°C to +70°C) suffices for the application environment. The TSSOP-16 package offers a compact footprint compared to SOIC or SSOP alternatives. Verify that the required data rate does not exceed 250 kb/s, as higher speeds may necessitate devices from the MAX3243 or MAX3251 families.

Part Context

This part belongs to the MAX3232 series of multichannel RS-232 transceivers. The 'C' suffix denotes the commercial temperature range, while 'PWR' specifies the TSSOP-16 surface-mount package. The 'G4' suffix typically signifies Green/RoHS-compliant manufacturing. It serves as a direct replacement for older MAXIM Integrated versions of the MAX3232.

Replacement Considerations

• MAX3232EIPWR
• MAX3232IDWR

FAQ

What is the maximum data rate supported by the MAX3232CPWRG4?

The device supports data rates up to 250 kb/s.

Does the MAX3232CPWRG4 require external inductors?

No, it uses internal charge pumps and requires only four external 0.1-F capacitors.

What is the ESD protection rating for the RS-232 lines?

The device provides ±15-kV ESD protection on all RS-232 lines according to Human Body Model testing.