MAX3317ECAP

Overview

The MAX3317ECAP is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for low-voltage applications. It operates within a supply voltage range of +2.25V to +3.0V and supports data rates up to 460kbps. The device integrates two drivers and two receivers in a single package. Key electrical specifications include a maximum operating temperature of +85°C and a minimum of -40°C. It features ±15kV ESD protection on all pins and consumes a typical supply current of 1µA when in shutdown mode. The component is housed in a 20-pin SSOP package.

Feature Summary

• AutoShutdown Plus technology enables ultra-low power consumption by automatically entering shutdown mode when the cable is disconnected or peripherals are inactive.
• Proprietary low-dropout transmitter output stage ensures RS-232 compatible performance with only four 0.1µF external capacitors.
• Comprehensive electrostatic discharge protection rated at ±15kV via air-gap discharge, ±8kV via contact discharge, and ±15kV via human body model.

Applications

• Portable battery-powered equipment requiring extended standby life
• Industrial control systems with limited power budgets
• Communication interfaces in space-constrained embedded devices

Procurement Notes

Verify the specific suffix against official documentation to confirm pin compatibility and thermal characteristics. Confirm RoHS compliance status as manufacturing processes may vary. Check for obsolescence notices or product change notifications prior to finalizing procurement plans.

Selection Notes

Select this component for designs requiring true 2.5V operation with minimal external capacitance. Ensure the application environment stays within the specified -40°C to +85°C temperature range. Verify that the 460kbps data rate meets system requirements compared to higher-speed alternatives.

Part Context

This part belongs to the MAX3316–MAX3319 family of low-power RS-232 transceivers. It shares architectural similarities with the MAX3223E but differs in supply voltage optimization for lower voltage rails. The ECAP variant specifically denotes the SSOP-20 packaging configuration used in surface-mount assemblies.

Replacement Considerations

Publicly confirmed substitutes include the MAX3317EEAP+ and MAX3317ECUP+. Verify pinout compatibility and ensure the replacement matches the required operating temperature range and voltage specifications before integration.