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A2SI-E Datasheet(PDF) 1 Page - Zentrum Mikroelektronik Dresden AG

Part # A2SI-E
Description  Advanced AS-Interface IC
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Manufacturer  ZMD [Zentrum Mikroelektronik Dresden AG]
Direct Link  http://www.zmdi.com
Logo ZMD - Zentrum Mikroelektronik Dresden AG

A2SI-E Datasheet(HTML) 1 Page - Zentrum Mikroelektronik Dresden AG

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Copyright © 2002, ZMD AG Data Sheet, Rev. 1.2, October 21, 2002 Printed in Germany,
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.
A
2SI-E
Advanced AS-Interface IC
Features
AS-i Complete Specification V2.11 compliant
Integrated EEPROM
Additional addressing channel using an opto-
electronic interface
Extended address mode operation as
programmable option (up to 62 slaves)
High impedance AS-i line input, additional pins
for further impedance optimizations
DC voltage output, approximately 24 volts, not
stabilized
5 volt DC voltage output, stabilized, CMOS
logic can be supplied directly (e.g. µC)
LED status indicator output (compliant with the
standard indication recommendation)
Integrated watchdog
Temperature range -25°C to + 105°C
Description
A²SI-E is a monolithic CMOS integrated circuit
certified
for
AS-i
(Actuator
Sensor-interface)
networks. AS-i networks are intended for industrial
automation.
The main advantage of AS-i solutions is that
actuators and sensors are connected using a two-
wire unshielded cable that is easy to install. This
cable transports both power and information/data.
AS-i network communication is based on the
master-slave
principle.
The
network
can
be
extended (to cable lengths greater than 100m) by
using the A²SI-E in the repeater mode configuration.
Furthermore, the A²SI-E is used as slave interface
to sensors / actuators and as master interface.
AS-i is a standard for the automation industry based
on IEC 62026-2 and EN 50295.
The device is available in a 28-pin SOP (300 mils)
package.
Block Diagram
RECEIVE
TRANSMIT
ELECTRONIC
INDUCTOR
POWER
SUPPLY
OSCILLATOR
4
4
4
DIGITAL
LOGIC
THERMAL
PROTECTION
A2SI-E
GND2
GND1
ASI+
ASI–
8 MHz
DOx
DIx
DSR
PST
Px
FID
LED
IRD
GND
0V
UIN
UOUT
U5R
U5RD
OSC1/2
CAP
ASIP
ASIN
10
µF
2.2
µF
5V
24V
POWERFAIL
DETECTION
IRD
AMP
CCAP
RCAP


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