MAX3243EUU

Overview

The MAX3243EUU is a 3V-powered RS-232 transceiver featuring three drivers and five receivers. It supports data rates up to 250kbps with full-duplex communication. The device operates within a supply voltage range of 3.0V to 5.5V and draws only 1µA in shutdown mode. It includes automatic shutdown/wakeup features and provides ±15kV ESD protection on all transmitter outputs and receiver inputs. The component is housed in a TQFN-EP-32 package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates automatic shutdown and wakeup functionality for power efficiency
• Provides enhanced electrostatic discharge protection rated at ±15kV
• Supports high data-rate capabilities up to 250kbps
• Operates with low standby current consumption in shutdown mode

Applications

• EIA/TIA-232 communications interfaces
• V.28/V.24 serial port connections
• Portable battery-powered equipment requiring low power
• Handheld computers and PDAs
• Laptop and notebook computer serial ports

Procurement Notes

Verify the specific suffix 'UU' against the manufacturer's official datasheet to confirm the exact package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements if applicable to your project. Cross-reference the ordering information with Analog Devices or Maxim Integrated authorized distributors to confirm availability and authenticity, as distribution channels may vary by region.

Selection Notes

Select this component when designing systems requiring robust ESD protection alongside low power consumption. The integrated shutdown feature makes it suitable for applications where battery life is critical. Verify that the required number of drivers (three) and receivers (five) matches the interface design needs. Ensure the operating temperature range aligns with the environmental conditions of the target application.

Part Context

The MAX3243E series belongs to a family of 3V-powered RS-232 transceivers designed for portable electronics. These devices offer high performance with minimal power usage, making them ideal for modern mobile applications. The series typically includes variants like the MAX3221E and MAX3223E, differing primarily in the number of drivers and receivers. The MAX3243EUU specifically utilizes a compact surface-mount package to facilitate space-constrained designs.

Replacement Considerations

Compatible substitutes include the MAX3243EIDW and MAX3243EEAI-T from Analog Devices/Maxim Integrated. Texas Instruments offers equivalent parts such as the MAX3243IDWR. Verify pin compatibility and electrical specifications before substitution.