ZMD Presents New SAP5 AS-Interface Chip

ZMD AG (Dresden, Germany), manufacturer of application-specific integrated circuits for actuator-sensor interface (AS-i) networks, presented its new SAP5 universal AS-interface chip with new features for safety automation systems. The SAP5 is certified according to the AS-i Specification 3.0, and includes all optional features such as a synchronous data input/output mode, four-input/four-output operation in extended address mode, user-write protection for extended ID Code 1, and a multiplexed parameter port to configure the slave. Configurable LED outputs support all status indication modes of the Specification V3.0.

The SAP5 minimizes development time, board space, component cost, and system startup time by using an integrated code generator instead of an external microcontroller for the storage and administration of safety sequences. An internal electronic inductor delivers a current drive capability of 55 mA. The SAP5 supports 5.33 MHz and 16 Mhz crystals by automatic frequency detection, and a clock watchdog is included for high system security. The SAP5 has broad application in slave modules, master modules, repeaters, and bus monitors. Sample systems applications include emergency stop buttons, guard-door surveillance systems, and safety photoelectric barriers.

Available in volume production now, the SAP5 is housed in either an SOP20 or SOP16 "green" plastic package with lead-free terminals. Pricing is $6.80 per unit in low-volume quantities.