SLLSFM5B March 2021 – February 2024 TLIN2029A-Q1
PRODUCTION DATA
RXD is the interface to the MCUs LIN protocol controller or SCI and UART, which reports the state of the LIN bus voltage. LIN recessive (near VBattery) is represented by a high level on the RXD and LIN dominant (near ground) is represented by a low level on the RXD pin. The RXD output structure is an open-drain output stage. This allows the device to be used with 3.3V and 5V I/O micrcontrollers. If the micrcontroller RXD pin does not have an integrated pull-up, an external pull-up resistor to the micrcontroller I/O supply voltage is required. In standby mode, the RXD pin is driven low to indicate a wake up request from the LIN bus.