A2SI-L14-ST Datasheet, PDF (1/2 Pages) Zentrum Mikroelektronik Dresden AG – Low End Device AS-Interface IC

A²SI-Lite 14 / A²SI-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 -25°C to + 85°C
Block Diagram
Description
A²SI-Lite (A²SI-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 A²SI or A²SI-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.
18 mH
ASI +
ASI -
10uF
100nF
CAP
1uF 100nF
ASIP
ASIN
0V
16MHz
VIN
OSC1
OSC2
Power on
5V
Power
Reset
Supply
Oscillator ^{AAS²IS-SI-WL}
Slave electronics
supply voltage
Receiver
Trans-
mitter
Thermal
Protection
EEPROM
DIGITAL
LOGIC
UART
State Machine
Ports
Pulse
Width
Modulation
Output
Stages
Input
Stages
DO0
Two outputs, e.g.
interconnced to push
DO1
button LEDs
DI2
Two inputs, e.g.
interconnced to push
DI3
button contacts
GND
TEST1 TEST2
Copyright © 2005 ZMD AG Rev. 2.0
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Information furnished in this publication is preliminary and subject to changes without notice.