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AMI SEMICONDUCTOR

AMIS-42673 Datasheet Preview

AMIS-42673 Datasheet

High-Speed CAN Transceiver

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AMIS-42673 High Speed CAN Transceiver
For Long Networks
Data Sheet
1.0 Introduction
The AMIS-42673 CAN transceiver is the interface between a controller area network (CAN) protocol controller and the physical bus. It
may be used in both 12V and 24V systems. The digital interface level is powered from a 3.3V supply providing true I/O voltage levels
for 3.3V CAN controllers.
The transceiver provides differential transmit capability to the bus and differential receive capability to the CAN controller. Due to the
wide common-mode voltage range of the receiver inputs, the AMIS-42673 is able to reach outstanding levels of electromagnetic
susceptibility (EMS). Similarly, extremely low electromagnetic emission (EME) is achieved by the excellent matching of the output
signals.
The AMIS-42673 is primarily intended for applications where long network lengths are mandatory. Examples are elevators, in-building
networks, process control and trains. To cope with the long bus delay the communication speed needs to be low. AMIS-42673 allows
low transmit data rates down to 10 kbit/s or lower.
2.0 Key Features
True 3,3V or 5,0V logic level interface
Fully compatible with the “ISO 11898-2” standard
Wide range of bus communication speed (0 up to 1Mbit/s)
Allows low transmit data rate in networks exceeding 1 km
Ideally suited for 12V and 24V applications
Low electromagnetic emission (EME). Common-mode-choke is no longer required
Differential receiver with wide common-mode range (+/- 35V) for high electromagnetic susceptibility (EMS)
No disturbance of the bus lines with an un-powered node
Thermal protection
Bus pins protected against transients
Short circuit proof to supply voltage and ground
ESD protection for CAN bus at ± 8 kV
3.0 Technical Characteristics
wwTwab.Dlea1ta:STheecehtn4iUca.cl oCmharacteristics
Symbol
Parameter
VCANH
DC voltage at pin CANH
VCANL
DC voltage at pin CANL
Vi(dif)(bus_dom)
Differential bus output voltage in
dominant state
tpd(rec-dom)
Propagation delay TxD to RxD
tpd(dom-rec)
Propagation delay TxD to RxD
CM-range
Input common-mode range for
comparator
VCM-peak
Common-mode peak
VCM-step
Common-mode step
Note 1: The parameters VCM-peak and VCM-step guarantee low EME.
Conditions
0 < VCC < 5.25V; no time limit
0 < VCC < 5.25V; no time limit
42.5< RLT < 60
Figure 7
Figure 7
Guaranteed differential receiver
threshold and leakage current
Figure 8 and
Figure 9 (Note 1)
Figure 8 and
Figure 9 (Note 1)
4.0 Ordering Information
Min
-45
-45
1.5
100
100
-35
-500
-150
Max
+45
+45
3
230
245
+35
500
150
Unit
V
V
V
ns
ns
V
mV
mV
Ordering Code (Tubes)
0ICAG-001-XTD
Ordering Code (Tape)
0ICAG-001-XTP
Marketing Name
AMIS 42673AGA
Package
SOIC-8 GREEN
Temp. Range
-40°C…125°C
AMI Semiconductor – October 07, Rev. 1.0
www.amis.com
Specifications subject to change without notice
1




AMI SEMICONDUCTOR

AMIS-42673 Datasheet Preview

AMIS-42673 Datasheet

High-Speed CAN Transceiver

No Preview Available !

AMIS-42673 High Speed CAN Transceiver
For Long Networks
5.0 Block Diagram
Data Sheet
AMIS-42673
VCC
1
TxD
V33 8
'S'
Thermal
shutdown
Driver
control
VCC
3
7 CANH
6 CANL
RxD 4
VREF 5
PC20071003.2
COMP
Ri(cm)
Vcc/2
+
Ri(cm)
2
GND
Figure 1: Block Diagram
6.0 Typical Application
6.1 Application Schematic
VBAT
www.DataSheet4U.com
IN 5V-reg OUT
60 60
47 nF
3.3V- OUT
IN reg
PC20071003.3
VCC
CAN
controller
GND
V33 VCC
RxD 8
4
3
7 CANH
AMIS- 5 VREF
TxD 1 42673 6 CANL
2
GND
CAN
BUS
60 60
47 nF
Figure 2: Application Diagram
AMI Semiconductor – October 07, Rev. 1.0
www.amis.com
Specifications subject to change without notice
2


Part Number AMIS-42673
Description High-Speed CAN Transceiver
Maker AMI SEMICONDUCTOR
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AMIS-42673 Datasheet PDF






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