Click here to ask about the production status of specific part numbers. MAX14821 IO-Link Device Transceiver General Description Benefits and Features The MAX14821 transceiver is suitable for IO-Link devic- Standards Compliance Ensures Future-Proof es and 24V binary sensors/actuators. All specified IO-Link Solutions IO-Link Versions 1.0 and 1.1.2 data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a micro- IEC IEC61131.9 SDCI controller running the data-link layer protocol. Additional High Configurability and Integration Reduces SKUs 24V digital inputs and outputs are provided. Two internal Push-Pull, PNP, or NPN Driver Configuration linear regulators generate common sensor and actuator Supports COM1, COM2, and COM3 Data Rates power requirements: 5V and 3.3V. SPI Interface for Control and Monitoring On-board C/Q and DO drivers are independently configurable 2.5V to 5V Logic Interface Levels for push-pull, high-side (PNP), or low-side (NPN) operation. Auxiliary 24V, 100mA Digital Output (DO) The device detects the IO-Link C/Q wake-up condition Auxiliary 24V Digital Input (DI) and generates a wake-up signal on the active-low WU 100mA Specified C/Q output Drive output. The C/Q and DI inputs have selectable current Integrated 5V and 3.3V Regulators loads for use in actuators. Integrated Protection Enables Robust Solutions An SPI interface allows configuration and monitoring Extensive Fault-Monitoring and Reporting of the device. Extensive alarm conditions are detected Reverse-Polarity and Short-Circuit Protection on and communicated through the IRQ output and the SPI All 24V Outputs/Inputs interface. The device features reverse-polarity, short-circuit, and thermal protection. All power lines are monitored for Reverse-Polarity Protected 24V Supply Output undervoltage conditions. -40C to +105C Operating Temperature Range The C/Q and DO drivers are specified for sourcing/sinking Small Package Supports Sensor Miniaturization up to 100mA. 2.5mm x 2.5mm WLP and 4mm x 4mm TQFN The device is available in a 2.5mm x 2.5mm, 25-pin wafer- Package level package (WLP) and a 4mm x 4mm, 24-pin TQFN package. Both are specified over the extended -40C to +85C temperature range. Ordering Information appears at end of data sheet. Applications IO-Link Sensors Industrial Sensors and Actuators IO-Link Actuators Typical Operating Circuit 5V 1F 0.1F 3.3V 1F 10 10k V V V LDO33 V LDOIN P CC L TXQ 5 V CC GPIO2 UV 1F 0.8 SPI L+ MICROCONTROLLER DO MAX14821 1 DI 2 IRQ WU 4 3 RX RX C/Q TX TXC L- GND RTS TXEN GPIO1 LO GND IO-Link is a registered trademark of Profibus User Organization (PNO). SPI is a trademark of Motorola, Inc. 19-5916 Rev 7 7/20MAX14821 IO-Link Device Transceiver Functional Diagram LDO33 V LDOIN V 5 P UV UV MONITOR 3.3V LDO 5V LDO V CC V L CS SDI STATUS AND SDO CONFIGURATION SCLK IRQ RX FILTER PROTECTION C/Q C/Q WAKE-UP LOAD WU DETECT DRIVER TXQ TXC PROTECTION GND TXEN LI PROTECTION DI DI LOAD DRIVER LO PROTECTION DO MAX14821 DoEn Maxim Integrated 2 www.maximintegrated.com