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AS8222 Datasheet(PDF) 16 Page - ams AG

Part # AS8222
Description  Enhanced FlexRay Standard Transceiver
PDF  43 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8222 Datasheet(HTML) 16 Page - ams AG

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AS8222
Datasheet - Electrical Character i s t ics
www.ams.com/eng/FlexRay/AS8222
Revision 1.0
15 - 42
6.7 Bus Error Detection
The following parameters are applicable to all the branch error detectors.
6.8 Over Temperature
6.9 Power Supply Interface
6.10 Communication Controller Interface
Table 9. Bus Error Detection
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ITHL
Absolute bus current for
low current detection
NORMAL mode, Transmitter
enabled not production tested
520
mA
ITHH
Absolute bus current for
high current detection
NORMAL mode, Transmitter
enabled not production tested
20
40
mA
VSHORT
Differential voltage on BP and BM for
detecting short circuit between bus lines
NORMAL mode, Transmitter
enabled
150
260
400
mV
tBUS_ERROR
Bus error detection time
Normal mode, Transmitter enabled
(**) detection only required while
actively transmitting a data frame,
error indication to host latest when
transmission stops.
500
ns
tBUS_INHIB
Bus short detection inhibit time
Normal mode, Transmitter enabled
0.5
2
4
µs
Table 10. Over Temperature
Symbol
Parameter
Conditions
Min
Typ
Max
Units
OTTH
Over temperature threshold high
175
190
205
ºC
OTTL
Over temperature hysteresis low
165
180
195
ºC
Table 11. Power Supply Interface
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ΔVOINH
High level voltage drop on INH1, INH2
IINH=0.2mA; VBAT=5.5V
00.2
0.8
V
⏐IIL⏐
Leakage current
Sleep mode, VINH=0V
-5
0
5
µA
Table 12. Communication Controller Interface
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VTxDIH
uVDIG-IN-
HIGH
Threshold for detecting TxD as on logical high
Threshold for detecting a digital input as on
logical high
0.48 * VIO 0.7 * VIO
0.7 ×
uVDIG
V
VTxDIL
uVDIG-IN-
LOW
Threshold for detecting TxD as on logical low
Threshold for detecting a digital input as on
logical low
0.3 * VIO
0.3 ×
uVDIG
V
ITxDIH
TxD high level input current
20
50
100
µA
ITxDIL
TxD low level input current
-5
0
5
µA
VTxENIH
uVDIG-IN-
HIGH
Threshold for detecting TxEN as on logical high
Threshold for detecting a digital input as on
logical high
0.7 * VIO
0.7 ×
uVDIG
V



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