AS2702-20

Specialized Overview

The AS2702-20 is an AS-Interface slave integrated circuit designed for industrial automation bus systems. It interfaces sensors and actuators to the unshielded 2-wire AS-Interface bus, supporting up to 62 slave modules in extended address mode. The device extracts DC power from the bus (nominal 30V) and regulates it internally to 5V for logic and 24V for field devices. It features a 16 x 8 bit EEPROM for non-volatile storage of slave addresses and configuration settings. The SOIC 20 package provides full functionality including a parameter port, bidirectional data ports, and LED status outputs.

Specialized Feature Summary

• Interfaces sensors and actuators to AS-Interface bus systems with serial bidirectional communication
• Extracts DC power from the bus and regulates internal supply voltages for logic and field devices
• Includes integrated 16 x 8 bit EEPROM for storing slave addresses and configuration parameters
• Features periphery fault input and LED outputs for hardware failure signaling and operational status indication

Specialized Applications

• Connecting sensors and actuators to AS-Interface bus networks
• Industrial automation control systems requiring standardized digital bus communication
• Slave module integration in automated manufacturing environments

Specialized Procurement Notes

Verify the specific package variant required, as the AS2702-20 denotes the SOIC 20 package. Confirm delivery format preferences, such as tape & reel or tubes, when placing orders. Ensure compatibility with existing AS-Interface master units and validate that the system design accommodates the specified operating temperature range and voltage requirements.

Specialized Selection Notes

Select the AS2702-20 when full functionality including the parameter port is required for sensor and actuator configuration. Choose this component over the SOIC 16 variant if bidirectional parameter transfer capabilities are necessary for the application. Ensure the design supports the 5.333 MHz quartz crystal frequency and accommodates the thermal dissipation characteristics defined for the SOIC 20 package.

Specialized Part Context

The AS2702 is part of the AS-Interface slave IC family, succeeding the AS2701A model while maintaining system compatibility. It enables scalable bus architectures by supporting up to 62 slaves in extended address mode. The device simplifies industrial wiring by combining data communication and power extraction into a single interface solution for field devices.

Specialized Replacement Considerations

The AS2701A is a predecessor device compatible with existing AS-Interface bus systems. Verify functional equivalence regarding address modes and pin configurations before substitution. Ensure that any replacement maintains support for the required number of slaves and adheres to the same electrical specifications.