ASI4U
Universal Actuator-Sensor Interface IC
Datasheet
Features
Description
ASI4U is a monolithic CMOS integrated circuit
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 is a direct successor of the ASI IC and
can replace the ASI in existing board layouts.
-
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 is available in SSOP28 package.
On chip electronic inductor with current
drive capability of 55mA
Application Support
Configuration of the chip is handled through
programming of the on-chip EPROM.
Configurable LED outputs supporting all
status indication modes defined by AS-i
Complete Specification V3.0
ZMD provides a special
Several data preprocessing functions, in-
cluding configurable data input filters and
bit selective data inverting
AS-Interface Programmer Tool
(Ordering Code: ZMD ASI-Programmer )
to ease product evaluation and selection of
different operation modes.
Improved additional addressing channel
for easy module setup
Further application support is available through
the e-mail hotline
asi@zmd.de
-
IR and CMOS input mode
-
Activation by magic sequence
Support of 8 / 16 MHz crystals by auto-
matic frequency detection
Clock Watchdog for high System Security
Pin and function compatible to ASI
2006, ZMD AG, Rev. 1.4
ts 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
on furnished in this publication is preliminary and subject to changes without notice.
BZV55C39
UIN
ASIP
ASI+
UOUT
ASIN
U5R
0V
ASI-
10F
1F
47nF
CAP
IRD
IR Addressing
Channel
TEMD5000
LED1
FID
LED2
OSC1
8/16 MHz
DSR
OSC2
PST
DO3
DI3
DO2
DI2
DO1
DI1
DO0
DI0
GND
P0
P3
P1
P2
Copyright
All righ
Informati
1/57
Datasheet
ZENTRUM MIKROELEKTRONIK DRESDEN AG
"ASI for you" IC
Copyright 2006, ZMD AG, Rev.1.4
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.
2/57
Table of Contents
Page
0
READ THIS FIRST.......................................................................................................................................... 4
0.1
I
MPORTANT
N
OTICE
.................................................................................................................................... 4
0.2
ASI-S
AFETY
A
PPLICATIONS
........................................................................................................................ 4
0.3
R
EPAIR OF
ASI-S
AFETY
M
ODULES
.............................................................................................................. 4
1
GENERAL DEVICE SPECIFICATION............................................................................................................ 5
1.1
A
BSOLUTE
M
AXIMUM
R
ATINGS
(N
ON
O
PERATING
) ....................................................................................... 5
1.2
O
PERATING
C
ONDITIONS
............................................................................................................................ 6
1.3
Q
UALITY
S
TANDARDS
................................................................................................................................. 6
1.4
P
ACKAGE
P
IN
A
SSIGNMENT
......................................................................................................................... 7
2
BASIC FUNCTIONAL DESCRIPTION ........................................................................................................... 9
2.1
F
UNCTIONAL
B
LOCK
D
IAGRAM
..................................................................................................................... 9
2.2
G
ENERAL
O
PERATIONAL
M
ODES
............................................................................................................... 11
2.3
S
LAVE
M
ODE
............................................................................................................................................ 11
2.3.1
AS-i communication channel .......................................................................................................... 11
2.3.2
IRD communication channel ........................................................................................................... 12
2.3.3
Parameter Port Pins........................................................................................................................ 12
2.3.4
Data Port Pins ................................................................................................................................. 12
2.3.5
Data Input Inversion ........................................................................................................................ 13
2.3.6
Data Input Filtering.......................................................................................................................... 13
2.3.7
Fixed Data Output Driving............................................................................................................... 13
2.3.8
Synchronous Data I/O Mode........................................................................................................... 13
2.3.9
4 Input / 4 Output processing in Extended Address Mode ............................................................. 13
2.3.10
AS-i Safety Mode ............................................................................................................................ 14
2.3.11
Enhanced LED Status Indication .................................................................................................... 14
2.3.12
Communication Monitor/Watchdog................................................................................................. 14
2.3.13
Write protection of ID_Code_Extension_1...................................................................................... 14
2.3.14
Summary of Master Calls................................................................................................................ 14
2.4
M
ASTER
M
ODE
......................................................................................................................................... 17
2.5
EPROM ................................................................................................................................................. 18
3
DETAILED FUNCTIONAL DESCRIPTION .................................................................................................. 21
3.1
AS-
I
R
ECEIVER
......................................................................................................................................... 21
3.2
AS-
I
T
RANSMITTER
................................................................................................................................... 21
3.3
A
DDRESSING
C
HANNEL
I
NPUT
IRD ............................................................................................................ 22
3.3.1
General Slave Mode Functionality .................................................................................................. 22
3.3.2
AC Current Input Mode ................................................................................................................... 23
3.3.3
CMOS Input Mode .......................................................................................................................... 23
3.3.4
Master-, Repeater- and Monitor-Mode............................................................................................ 24
3.4
D
IGITAL
I
NPUTS
- DC C
HARACTERISTICS
................................................................................................... 25
3.5
D
IGITAL
O
UTPUTS
- DC C
HARACTERISTICS
............................................................................................... 25
3.6
P
ARAMETER
P
ORT AND
PST P
IN
............................................................................................................... 26
3.6.1
Slave Mode ..................................................................................................................................... 26
3.6.2
Parameter Multiplex Mode .............................................................................................................. 27
3.6.3
Special function of P0, P1 and P2 .................................................................................................. 27
3.6.4
Master-, Repeater-, Monitor Mode.................................................................................................. 28
3.7
D
ATA
P
ORT AND
DSR P
IN
........................................................................................................................ 29
3.7.1
Slave Mode ..................................................................................................................................... 29
3.7.2
Input Data Pre-Processing.............................................................................................................. 30
3.7.3
Fixed Output Data Driving............................................................................................................... 32
3.7.4
Synchronous Data I/O Mode........................................................................................................... 32
3.7.5
Support of 4I/4O processing in Extended Address Mode, Profile 7.A.x.E...................................... 34
3.7.6
Safety Mode Operation ................................................................................................................... 34
3.7.7
Master-, Repeater-, Monitor Mode.................................................................................................. 38
3.7.8
Special function of DSR .................................................................................................................. 38
Datasheet
ZENTRUM MIKROELEKTRONIK DRESDEN AG
"ASI for you" IC
Copyright 2006, ZMD AG, Rev.1.4
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.
3/57
3.8
F
AULT
I
NDICATION
I
NPUT
P
IN
FID...............................................................................................................39
3.8.1
Slave Mode ......................................................................................................................................39
3.8.2
Master- and Monitor Mode...............................................................................................................39
3.9
LED
OUTPUTS
...........................................................................................................................................40
3.9.1
Slave Mode ......................................................................................................................................40
3.9.2
Communication via Addressing Channel.........................................................................................41
3.9.3
Master-, Repeater-, Monitor Mode...................................................................................................41
3.10
O
SCILLATOR
P
INS
OSC1, OSC2 ...........................................................................................................41
3.11
IC R
ESET
..............................................................................................................................................42
3.11.1
Power On Reset...............................................................................................................................42
3.11.2
Logic controlled Reset .....................................................................................................................43
3.11.3
External Reset .................................................................................................................................43
3.12
UART ...................................................................................................................................................44
3.12.1
AS- i input channel...........................................................................................................................44
3.12.2
Addressing Channel.........................................................................................................................46
3.13
M
AIN
S
TATE
M
ACHINE
............................................................................................................................47
3.14
C
OMMUNICATION
M
ONITOR
/W
ATCHDOG
.................................................................................................47
3.15
T
OGGLE WATCHDOG FOR
4I/4O
PROCESSING IN
E
XTENDED
A
DDRESS
M
ODE
...........................................47
3.16
W
RITE
P
ROTECTION OF
ID_C
ODE
_E
XTENSION
_1 ...................................................................................47
3.17
P
OWER
S
UPPLY
.....................................................................................................................................49
3.17.1
Voltage Output Pins UOUT and U5R ..............................................................................................49
3.17.2
Input Impedance (AS-i bus load) .....................................................................................................50
3.18
T
HERMAL AND
O
VERLOAD
P
ROTECTION
..................................................................................................50
4
APPLICATION CIRCUITS .............................................................................................................................51
5
PACKAGE OUTLINE.....................................................................................................................................54
6
PACKAGE MARKING ...................................................................................................................................55
7
ORDERING INFORMATION..........................................................................................................................55
8
RELATED DOCUMENTS ..............................................................................................................................56
9
RELATED PRODUCTS .................................................................................................................................56
10
CONTACT INFORMATION........................................................................................................................56
10.1
ZMD S
ALES
..........................................................................................................................................56
10.2
ZMD AS-I
NTERFACE
A
PPLICATION
S
UPPORT
..........................................................................................56
10.3
ZMD D
ISTRIBUTION
P
ARTNERS
..............................................................................................................56
10.4
AS-I
NTERNATIONAL
A
SSOCIATION
..........................................................................................................57
Datasheet
ZENTRUM MIKROELEKTRONIK DRESDEN AG
"ASI for you" IC
Copyright 2006, ZMD AG, Rev.1.4
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.
4/57
0
Read this First
SAFETY-ADVICE
0.1 Important
Notice
Products sold by ZMD are covered exclusively by the warranty, patent indemnification and other provisions ap-
pearing in ZMD standard "Terms of Sale". ZMD makes no warranty (express, statutory, implied and/or by de-
scription), including without limitation any warranties of merchantability and/or fitness for a particular purpose,
regarding the information set forth in the Materials pertaining to ZMD products, or regarding the freedom of any
products described in the Materials from patent and/or other infringement. ZMD reserves the right to discontinue
production and change specifications and prices of its products at any time and without notice. ZMD 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
ZMD for such applications.
ZMD 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 ASI 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 inten-
tion, by accident or hardware fault.
ZMD strongly recommends the use of the new ASI4U Safety-Mode, if the ASI4U shall replace the ASI in exist-
ing ASI-Safety designs. Only then, the same fault reaction times as with the ASI are guaranteed. For compati-
bility 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 EPROM configuration.
Application of the ASI4U in Standard Mode (no Safety Mode enabled) for AS-i Safety products is basically pos-
sible, 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 ZMD web page
www.zmd.biz
.
0.3 Repair of ASI-Safety Modules
If an ASI based ASI-Safety Module shall be repaired, it is explicitly prohibited to replace the ASI IC with the
newer ASI4U IC. This is to exclude safety relevant deviations of module properties that can result from the dif-
ferent data input paths an 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 ZMD web page
www.zmd.biz
.
Datasheet
ZENTRUM MIKROELEKTRONIK DRESDEN AG
"ASI for you" IC
Copyright 2006, ZMD AG, Rev.1.4
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.
5/57
1
General Device Specification
1.1 Absolute Maximum Ratings (Non Operating)
Table 1: Absolute Maximum Ratings
Symbol Parameter
Min Max Unit
Note
V
0V
, V
GND
Voltage
reference
0
0
V
V
ASIP-ASIN
Voltage difference between ASIP and ASIN (V
ASIP
- V
ASIN
) -0.3 40 V
1
V
ASIP-ASIN_P
Pulse voltage between ASIP and ASIN (V
ASIP
- V
ASIN
) -0.3
50
V
2
V
ASIP
Pulse voltage between ASIP and 0V (V
ASIP
V
0V
) -0.3
50
V
2, 3
V
ASIN
Voltage between ASIN and 0V (V
ASIN
V
0V
) -6.0
6.0
V
3
V
UIN
Power supply input voltage
-0.3
40
V
V
UIN_P
Pulse voltage at power supply input
-0.3
50
V
2
V
inputs1
Voltage at pins DI3 ... DI0, DO3 ... DO0, P3 ... P0, DSR, PST,
LED1, LED2, FID, IRD, UOUT
-0.3 V
UIN
+ 0.3
V
V
inputs2
Voltage at pins OSC1, OSC2, CAP, U5R
-0.3
7
V
I
in
Input current into any pin except supply pins
-50
50
mA
4
H Humidity
non-condensing
5
V
HBM1
Electrostatic discharge Human Body Model (HBM1)
3500
V
6
V
HBM2
Electrostatic discharge Human Body Model (HBM2)
2000
V
7
V
EDM
Electrostatic discharge Equipment Discharge Model (EDM)
400
V
8
STG
Storage temperature
-55
125
C
P
tot
Total power dissipation
0.85
W
9
R
thj
Thermal resistance of SSOP 28 package
40
80
K/W
10
1
reverse polarity protection has to be performed
externally
2
pulse
with
50s, repetition rate 0.5 Hz
3
V
ASIP-ASIN
and V
ASIP-ASIN_P
must not be violated
4
Latch-up resistance, reference pin is 0V
5
Level 4 according to JEDEC-020A is guaranteed
6
HBM1: C = 100pF charged to V
HBM1
with resistor
R = 1.5k
in series, valid for ASIP-ASIN only.
7
HBM2: C = 100pF charged to V
HBM2
with resistor
R = 1.5k
in series, valid for all pins except ASIP-
ASIN
8
EDM: C = 200pF charged to V
EDM
with no resistor
in series, valid for ASIP-ASIN only
9
at max. operating temperature, the allowed total
power dissipation depends on additional thermal
resistance from package to ambient and on the operation ambient temperature as shown in Figure 1.
P
tot
= f (Ta); 1L / 2L = 1 layer / 2 layer PCB
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-25
0
25
50
75
100
Ta
Ptot (2L)
Ptot (1L)
Figure 1: Ptot = f(
a
)
10
Single layer board, P
tot
= 0.5W; air velocity = 0m/s
max. value; air velocity = 2.5m/s min. value
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