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ASI4UE-F-G1-ST Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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ASI4UE-F-G1-ST Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
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9 / 64 page  ASI4U / ASI4U-E / ASI4U-F Spec. 3.0 Compliant Universal AS-I IC Data Sheet April 2, 2012 © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.2 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice. 9 of 63 0 Read this First 0.1. Important Notice Products sold by Zentrum Mikroelektronik Dresden AG (ZMDI) are covered exclusively by the warranty, patent indemnification and other provisions appearing in ZMDI standard "Terms of Sale". ZMDI makes no warranty (express, statutory, implied and/or by description), including without limitation any warranties of merchantability and/or fitness for a particular purpose, regarding the information set forth in the Materials pertaining to ZMDI products, or regarding the freedom of any products described in the Materials from patent and/or other infringement. ZMDI reserves the right to discontinue production and change specifications and prices of its products at any time and without notice. ZMDI products are intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recommended without additional mutually agreed upon processing by ZMDI for such applications. ZMDI reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. 0.2. ASI-Safety Applications The ASI4U is designed to allow replacement of A²SI ICs in existing board layouts and applications. However, since the ASI4U provides additional data preprocessing functions at the data input channel, the fault reaction time of an AS-i Safety module could increase by 40ms if some of the new features become activated by intention, by accident or hardware fault. ZMDI strongly recommends the use of the new ASI4U Safety-Mode, if the ASI4U shall replace the A²SI in existing ASI-Safety designs. Only then, the same fault reaction times as with the A²SI are guaranteed. For compatibility with the modified data input routing in Safety Mode, the user has to adapt the safety code table stored in the external micro controller. Only such Safety Code Sequences that contain the value 1110 are permitted. If the IC is operated in Safety Mode, the user must pay special attention that the Synchronous Data I/O Mode as well as the Data Input Filters remain disabled by appropriate E²PROM configuration. Application of the ASI4U in Standard Mode (no Safety Mode enabled) for AS-i Safety products is basically possible, if an additional Fault Reaction Time of 40ms is taken into account. The user shall also obey the additional security advice regarding “Production and Repair of AS-i Safety Slaves” that is available as an additional document form the ZMDI web page www.zmdi.com . 0.3. Repair of ASI-Safety Modules If an A²SI based ASI-Safety Module shall be repaired, it is explicitly prohibited to replace the A²SI IC with the newer ASI4U IC. This is to exclude safety relevant deviations of module properties that can result from the different data input paths and the above mentioned possible increase in Fault Reaction Time. The user shall also obey the additional security advice regarding “Production and Repair of AS-i Safety Slaves” that is available as an additional document form the ZMDI web page www.zmdi.com . SAFETY-ADVICE |
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