AS8221
Data Sheet - App endix
Table 12. Comparison table
FlexRay
AS8221 Datasheet
Electrical Physical Layer Specification V2.1 Rev. B
Symbol
Parameter
Name
Description
Absolute max current when BP is shorted to
48 V
Absolute maximum output current when
shorted to 48V
IBP48VShortMax
IBPBAT48VShortMax
Absolute max current when BM is shorted to
48 V
Absolute maximum output current when
shorted to 48V
IBM48VShortMax
tTxD_BUS01
IBMBAT48VShortMax
Delay time from TxD to BUS positive edge
Delay time from TxD to BUS negative edge
dBDTx10
dBDTx01
Transmitter delay, negative edge
Transmitter delay, positive edge
tTxD_BUS10
Transmitter delay mismatch
| dBDTx10 - dBDTx01 |
tTxD_MISMATCH
Delay time from TxD to BUS mismatch
dTxAsym
Fall time differential bus voltage
(80% ® 20%)
tBUS10
tBUS01
Fall time differential bus voltage
Rise time differential bus voltage
Delay time from TxEN to bus active
dBusTx10
dBusTx01
dBDTxia
Rise time differential bus voltage (20% ®
80%)
tTxEN_BUS_Idle_Active
Propagation delay idle ®active
tTxEN_BUS_Active_Idle
tTxEN_MISMATCH
Delay time from TxEN to bus idle
Delay time from TxEN to bus mismatch
Delay time from BGE to bus active
Delay time from BGE to bus idle
dBDTxai
dBDTxDM
dBDTxia
dBDTXai
dBusTxia
Propagation delay active ® idle
| dBDTxia - dBDTxai |
tBGE_BUS_Idle_Active
tBGE_BUS_Active_Idle
tBUS_Idle_Active
Propagation delay idle ® active
Propagation delay active ® idle
Transition time idle ® active
Differential bus voltage transition time: idle to
active
Differential bus voltage transition time: active
to idle
tBUS_Active_Idle
dBusTxai
-
Transition time active → idle
tTxEN_timeout
TxEN timeout
-
Receiver
RBP, RBM
RDIFF
BPidle, VBMidle
BPidle_low, VBMidle_low
IBPidle
BP, BM input resistance
RCM1, RCM2
Receiver common mode input resistance
BP, BM differential input resistance
-
-
Idle voltage in non-low-power modes on pin
BP,BM
V
uBias
Bus bias voltage during BD_Normal mode
Idle voltage in low-power modes on pin BP,
BM
V
uBias
Bus bias voltage during low-power modes
Absolute idle output current on pin BP
Absolute idle output current on pin BM
Absolute leakage current, when not powered
-
-
IBMidle
-
-
IBPleak, IBMleak
iBPLeak, iBMLeak
Absolute leakage current, when not powered
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