SAP5S/SAP51 is a new generation CMOS integrated circuit for AS-I networks. The low-level field bus AS-I (Actuator Sensor Interface) was designed for easy, safe and cost-effective interconnection of sensors, actuators and switches. It transports both power and data over the same two-wire unshielded cable. SAP5S/SAP51 is used as a part of a master or slave node and works as an interface to the physical bus. The device realizes power supply, physical data transfer and communication protocol handling and is fully compliant with AS-Interface Complete Specification V3.0. SAP5S/SAP51 can be programmed by the user to operate in Standard Slave Mode, Safety Mode or Master Mode. The special AS-I Safety Mode (SAP5S only) assures short response times regarding security related events. All configuration data are stored in an internal EEPROM that can be easily programmed by a stationary or handheld programming device. SAP5S/SAP51 is optimized for harsh environments by it’s special burst protection circuitry and excellent electromagnetic compatibility.

• Compliant with ASI Complete Specification V3.0
• Integrated safety code generator (SAP5S only)
• Universal application: in slaves, masters, repeaters and bus-monitors
• On-chip electronic inductor: 55 mA current drive capability
• Two LED outputs to support Spec. V3.0 status indication modes
• User programmable to operation in Standard Slave Mode, Safety Mode or Master Mode
• Supports 5.33/16 MHz crystals by automatic frequency detection
• Data preprocessing functions
• Special burst protection circuitry
• Excellent electromagnetic compatibility
• Clock and communication watchdogs for high system security
• Available in SOP20 and SOP16 package
• Industrial Temperature Range –25°C … 85°C

• Cost savings due to integrated Safety code Generator (SAP5S)
• Functional and pin compatible to SAP4.1
• Automatic x-tal detection (5,3333MHz or 16,0000MHz)
• Supports AS-I complete Specification 3.0

the SAP5S / SAP51 is used in:

• Industrial / Factory Automation