General Description
The MAX14821 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol.
Additional 24V digital inputs and outputs are provided. Two internal linear regulators generate common sensor and actuator power requirements: 5V and 3.3V.

Benefts and Features
● Standards Compliance Ensures Future-Proof Solutions
   • IO-Link Versions 1.0 and 1.1.2
   • IEC IEC61131.9 SDCI
● High Configurability and Integration Reduces SKUs
   • Push-Pull, PNP, or NPN Driver Configuration
   • Supports COM1, COM2, and COM3 Data Rates
   • SPI Interface for Control and Monitoring
   • 2.5V to 5V Logic Interface Levels
   • Auxiliary 24V, 100mA Digital Output (DO)
   • Auxiliary 24V Digital Input (DI)
   • 100mA Specified C/Q output Drive
   • Integrated 5V and 3.3V Regulators
● Integrated Protection Enables Robust Solutions
   • Extensive Fault-Monitoring and Reporting
   • Reverse-Polarity and Short-Circuit Protection on
      All 24V Outputs/Inputs
   • Reverse-Polarity Protected 24V Supply Output
      -40°C to +105°C Operating Temperature Range
● Small Package Supports Sensor Miniaturization
   • 2.5mm x 2.5mm WLP and 4mm x 4mm TQFN
      Package

Applications
   IO-Link Sensors
   Industrial Sensors and Actuators
   IO-Link Actuators