AS8221
Data Sheet - Electrical Characteristics
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Differential voltage on BP and
BM for detecting short circuit
between bus lines
NORMAL mode, Transmitter
enabled
VSHORT
225
mV
NORMAL mode, Transmitter
enabled
tBUS_ERROR
Bus error detection time
20
µs
Over Temperature
OTTH
Over temperature threshold
Over temperature hysteresis
150
10
171
13
180
20
ºC
ºC
OTTL
Power Supply Interface
High level voltage drop on INH1,
INH2
ΔVOINH
⏐IIL⏐
I
INH = 0.2mA, VBAT = 5.5V
0
0.15
0
0.8
5
V
SLEEP mode, VINH = 0V
Leakage current
µA
Communication Controller Interface
Threshold for detecting TxD as
0.48 *
VTxDIH
VTxDIL
0.7 * VIO
V
V
on logical high
VIO
Threshold for detecting TxD as
on logical low
0.48 *
VIO
0.3 * VIO
ITxDIH
ITxDIL
TxD high level input current
TxD low level input current
30
-5
52
0
100
5
µA
µA
Threshold for detecting TxEN as
on logical high
0.48 *
VTxENIH
VTXENIL
0.7 * VIO
V
V
VIO
Threshold for detecting TxEN as
on logical low
0.3 *
VIO
0.48 *
VIO
ITxENIH
ITxENIL
TxEN high level input current
TxEN low level input current
RxD high level output voltage
RxD low level output voltage
-5
0
5
µA
µA
V
-100
-50
-30
VRxDOH
I
RxD = -4mA, VIO = 5V
0.8 * VIO 0.9 * VIO 1.0 * VIO
VRxDOL
IRxD = 4mA, VIO = 5V
0
0.1 * VIO 0.2 * VIO
V
Host Interface
Threshold for detecting STBN as
on logical high
0.48 *
0.7 * VIO
VIO
VSTBNIH
VSTBNIL
V
V
Threshold for detecting STBN as
on logical low
0.48 *
VIO
0.3 * VIO
ISTBNIH
ISTBNIL
STBN high level input current
STBN low level input current
30
-5
52
0
100
5
µA
µA
STBN de-bouncing time low-
power modes
tSTBN_DEB_LP
tSTBN_DEB_NLP
VENIH
0.1
0.1
1
1
40
2
µs
µs
V
STBN de-bouncing time non-low-
power modes
Threshold for detecting EN as on
logical high
0.48 *
VIO
0.7 * VIO
Threshold for detecting EN as on
logical low
0.48 *
VIO
VENIL
0.3 * VIO
V
IENIH
IENIL
EN high level input current
EN low level input current
30
-5
50
0
100
5
µA
µA
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Revision 1.1
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