ASI-Lite 14 / ASI-Lite 16
Low End Device AS-Interface IC
Features
AS-i Complete Specification V2.11 compliant
Integrated EEPROM
Extended address mode operation as
programmable option (up to 62 slaves)
Dedicated IO-port structure: two data inputs,
two data outputs, no parameter port pins
Optional PWM outputs
Integrated watchdog
Temperature range -25C to + 85C
Description
ASI-Lite (ASI-L) is a monolithic CMOS integrated
circuit certified for AS-i (Actuator Sensor-interface)
networks. AS-i networks are intended for industrial
automation. This integrated circuit is dedicated to
be used as simplified interface IC for key control
panels, simple sensors and small actuators.
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 ASI or ASI-E in the repeater mode
configuration.
AS-i is a standard for the automation industry based
on IEC 62026-2 and EN 50295.
The device is available in a 14 and 16-pin SOP (150
mils) package.
Block Diagram
Oscillator
Pulse
Width
Modulation
Output
Stages
Input
Stages
EEPROM
Thermal
Protection
Receiver
Trans-
mitter
Power
Supply
DIGITAL
LOGIC
UART
State Machine
Ports
Power on
Reset
CAP
ASIP
ASIN
0V
GND
TEST1
TEST2
DI3
DI2
DO1
DO0
OSC1
OSC2
VIN
5V
10uF
16MHz
ASI-SW
ASI +
ASI -
100nF
100nF
1uF
Two inputs, e.g.
interconnced to push
button contacts
Two outputs, e.g.
interconnced to push
button LEDs
Slave electronics
supply voltage
18 mH
ASI-L
Copyright 2005 ZMD AG Rev. 2.0
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.
ASI-Lite 14 / ASI-Lite 16
Low End Device AS-Interface IC
Application
The AS-interface integrated circuit ASI-L is dedicated for pushbutton and pilot light applications. In contrast to
the integrated circuit ASI-L16 (16-pin SOP package) the ASI-L14 does not provide diagnostic pins.
Application
AS-i network
cable access
CAP
ASIP
ASIN
0V
GND
TEST1
TEST2
DI3
DI2
DO1
DO0
OSC1
OSC2
VIN
10uF
24V
16MHz
ASI-SW
ASI+
ASI-
100nF
100nF
1uF
Slave electronics
supply voltage
18 mH
Voltage
Regulator
GND
LED-
Lamp
Switch
Typical ASI-Lite Pushbutton Application
ASI-L
Ordering Information
Ordering Code
Description
Operating
Temperature
Range
Package Type
Shipping Form
A2SI-L14-ST
14 pin version
-25C to 85C
SOP14 (150 mil)
Tubes
(55 parts/tube)
A2SI-L14-SR
14 pin version
-25C to 85C
SOP14 (150 mil)
Tape-and-Reel
(2500 parts/reel)
A2SI-L16-ST
16 pin version
with FID / LED pin
-25C to 85C
SOP16 (150 mil)
Tubes
(55 parts/tube)
A2SI-L16-SR
16 pin version
with FID / LED pin
-25C to 85C
SOP16 (150 mil)
Tape-and-Reel
(2500 parts/reel)
For further
information:
ZMD AG
Grenzstrasse 28
01109 Dresden, Germany
Tel.: +49 (0)351.8822.366
Fax: +49 (0)351.8822.337
sales@zmd.de
ZMD America Inc.
201 Old Country Road, Suite 204
Melville, NY 11747
Tel.: (631) 549-2666
Fax: (631) 549-2882
sensors@zmda.com
WBC GmbH
Im Technologiepark 2-8
D-85586 Poing
Phone: +49 8121 775 155
Fax:
+49 8121 775 592
juergen.dudda@wbc-europe.com
Copyright 2005 ZMD AG Rev. 2.0
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.
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