MAX3318CUP

Overview

The MAX3318CUP is a full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates two drivers and two receivers in a single package, supporting data rates up to 460Kbps. The device operates on a single 2.5V supply voltage and features 15kV ESD protection on both I/O and logic pins. It utilizes external capacitors for charge pump functionality, eliminating the need for internal voltage generation circuits. The component is housed in a 20-TSSOP surface-mount package with an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrates dual drivers and dual receivers for complete RS-232 communication channels within a compact footprint.
• Provides robust 15kV electrostatic discharge protection on input/output and logic signal pins to enhance system reliability.
• Operates efficiently from a single 2.5V power supply using external capacitors for charge pump voltage generation.

Applications

• Portable devices requiring low-power serial communication interfaces
• Industrial equipment utilizing RS-232 protocols
• GPS modules and navigation systems
• Medical instrumentation with serial data links

Procurement Notes

Verify the manufacturer designation carefully, as this component is listed under both Texas Instruments and Analog Devices/Maxim Integrated due to historical acquisition records. Confirm the specific suffix 'CUP' corresponds to the commercial temperature grade and TSSOP package variant required for your design. Ensure compatibility with existing bill of materials regarding sourcing entities.

Selection Notes

Select this component when a low-voltage 2.5V operation is mandatory for RS-232 applications. It is suitable for designs prioritizing high ESD immunity without increasing board space significantly. Compare against the MAX3318EUP if extended industrial temperature ranges are necessary instead of the commercial grade offered here.

Part Context

This part belongs to the MAX3318 family of RS-232 transceivers designed for portable electronics. The series emphasizes low power consumption and small form factors. The CUP suffix indicates the commercial temperature range and specific plastic packaging type, distinguishing it from extended temperature or alternative package variants within the same functional family.

Replacement Considerations

MAX3318EUP is a parameter-equivalent alternative offering an extended industrial temperature range. MAX3318IDBR provides similar functionality in a 20-SSOP package with extended temperature ratings. Verify pinout compatibility before substituting these variants.