ASI4U/ASI4U-E
Universal Actuator-Sensor Interface IC
Datasheet
Features
Description
ASI4U and ASI4U-E are monolithic CMOS
integrated circuits certified for AS-i (Actuator
Sensor Interface) networks. AS-i networks are
used for industrial automation.
Universal application in AS-i Slave, Mas-
ter, Repeater and Bus-Monitor compo-
nents
Support of AS-i Complete Specification
V3.0, including all optional features
AS-i is designed for easy and simple intercon-
nection of binary sensors and actuators. It
uses a two-wire unshielded cable to transport
power and information.
-
Synchronous Data I/O Mode
-
4 Input / 4 Output operation in
Extended Address Mode
ASI4U and ASI4U-E are direct successor of
the A²SI IC and can replace the A²SI.
-
-
User write protection for
Extended ID-Code 1
Multiplexed Parameter Port
AS-i Safety applications can use the special
AS-i Safety Mode if fault reaction time is a
concern.
Special AS-i Safety Mode
Floating AS-i Transmitter and Receiver for
high symmetrical high power applications
The device ASI4U is available in SSOP28
package. The device ASI4U-E in SOP28 pack-
age.
On chip electronic inductor with current
drive capability of 55mA
ASI4U-E has extented operation temperature
range from –25°C to +105°C.
Configurable LED outputs supporting all
status indication modes defined by AS-i
Complete Specification V3.0
Application Support
Configuration of the chip is handled through
programming of the on-chip E²PROM.
Several data preprocessing functions, in-
cluding configurable data input filters and
bit selective data inverting
ZMD provides a special
Improved additional addressing channel
for easy module setup
AS-Interface Programmer Tool
-
IR and CMOS input mode
(Ordering Code: ZMD ASI-Programmer )
-
Activation by magic sequence
to ease product evaluation and selection of
different operation modes.
Support of 8 / 16 MHz crystals by auto-
matic frequency detection
Further application support is available through
the e-mail hotline asi@zmd.de
Clock Watchdog for high System Security
Pin and function compatible to A²SI
BZV55C39
ASI+
UIN
UOUT
U5R
ASIP
ASIN
0V
ASI-
10µF
1µF
CAP
LED1
LED2
DSR
PST
DI3
47nF
IRD
IR Addressing
FID
TEMD5000
Channel
OSC1
OSC2
DO3
DO2
DO1
DO0
GND
P3
8/16 MHz
DI2
DI1
DI0
P0
P1
P2
Copyright © 2010, ZMD AG, Rev. 1.7
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Information furnished in this publication is preliminary and subject to changes without notice.
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