ASI4UC-G1-SR-7 ZMDI, ASI4UC-G1-SR-7 Datasheet - Page 9

• Manufacturer Part Number: ASI4UC-G1-SR-7
• Description: Interface - Specialized ASI
• Manufacturer: ZMDI

Specifications of ASI4UC-G1-SR-7

• Product Category: Interface - Specialized
• Rohs: yes
• Product Type: Actuator Sensor Interface IC
• Operating Supply Voltage: 16 V to 33.1 V
• Supply Current: 6 mA
• Maximum Power Dissipation: 850 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 25 C

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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
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
Data Sheet
January 30, 2012
ASI4U / ASI4U-E
Spec. 3.0 Com
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© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.1
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 PRELIMINARY and subject to
changes without notice.
pliant Universal AS-I IC
SAFETY-ADVICE
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