MAX3232MPWREP

Overview

The MAX3232MPWREP is a multichannel RS-232 line driver and receiver 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 two drivers and two receivers for full-duplex communication. It utilizes four external 0.1-uF capacitors for charge pumping. The component provides -15-kV ESD protection on all RS-232 lines. It is housed in a TSSOP-16 package and is rated for an extended industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated dual charge pump enables true RS-232 performance using only four small external capacitors.
• Provides robust -15-kV electrostatic discharge (ESD) protection on transmit and receive lines.
• Operates efficiently across a wide 3-V to 5.5-V power supply range with low quiescent current.

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment due to low power consumption
• Modems and fax machines utilizing standard RS-232 interfaces

Procurement Notes

Verify the suffix 'REP' indicates military-grade reliability or specific procurement channel requirements before ordering. Confirm that the TSSOP-16 package matches the target PCB footprint. Ensure the extended temperature rating aligns with the operational environment specifications. Cross-reference the manufacturer datasheet for exact pinout compatibility with existing designs.

Selection Notes

Select this component when full-duplex RS-232 communication is required with high ESD immunity. It is suitable for applications needing operation between 3 V and 5.5 V without additional voltage regulation. Consider the TSSOP-16 package size constraints during layout. Verify that the 250 kb/s data rate meets the system throughput requirements.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers. The family includes variants with different packages and temperature ranges. The MAX3232 series is widely used for converting TTL/CMOS levels to RS-232 standards. It serves as a standard interface solution for legacy serial ports in modern embedded systems.

Replacement Considerations

The MAX3232IDWR and MAX3232EIPWR are functional equivalents within the same family. Verify package compatibility, as these alternatives may come in SOIC-16 or TSSOP-16 formats. Check if the standard commercial grade suffices instead of the REP variant. Ensure ESD protection ratings match the application needs.