TCAN1042H_16 Datasheet, PDF (21/37 Pages) Texas Instruments – Fault Protected CAN Transceiver with CAN FD

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9.4.4 Driver and Receiver Function Tables
TCAN1042H, TCAN1042HG
TCAN1042HGV, TCAN1042HV
SLLSES7A – MARCH 2016 – REVISED MAY 2016
Table 5. Driver Function Table
DEVICE
All Devices
INPUTS
STB ⁽¹⁾
TXD ^{(1) (2)}
L
L
H or Open
H or Open
X
OUTPUTS
CANH ⁽¹⁾
CANL ⁽¹⁾
H
L
Z
Z
Z
Z
DRIVEN BUS
STATE
Dominant
Recessive
Recessive
(1) H = high level, L = low level, X = irrelevant, Z = common mode (recessive) bias to V_CC / 2. See and
Figure 14 for bus state and common mode bias information.
(2) Devices have an internal pull up to V_CC or V_IO on TXD terminal. If the TXD terminal is open the
terminal will be pulled high and the transmitter will remain in recessive (non-driven) state.
DEVICE MODE
Normal
Table 6. Receiver Function Table
CAN DIFFERENTIAL INPUTS
V_ID = V_CANH – V_CANL
V_ID ≥ V_IT+(MAX)
V_IT-(MIN) < V_ID < V_IT+(MAX)
V_ID ≤ V_IT-(MIN)
Open (V_ID ≈ 0 V)
BUS STATE
Dominant
?
Recessive
Open
RXD
TERMINAL ⁽¹⁾
L ⁽²⁾
? ⁽²⁾
H ⁽²⁾
H
(1) H = high level, L = low level, ? = indeterminate.
(2) See Receiver Electrical Characteristics section for input thresholds.
Copyright © 2016, Texas Instruments Incorporated
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