The CA-IF1021x-Q1 family of device is Local Interconnect  Network (LIN) transceiver with integrated wake-up and  protection features for automotive applications. LIN is low-speed universal asynchronous receiver transmitter (UART)  communication protocol used to support in-vehicle networks. The CA-IF1021x-Q1 transceiver controls the LIN  bus state via the TXD input and reports the bus state on its  open-drain output RXD between the protocol controller and  physical LIN networks. These device features slew-rate  control and wave-shaping to reach a very low level of  electromagnetic emission (EME) within a broad frequency  range.

The CA-IS1021x-Q1 devices are designed to support 12V automotive applications with 5.5V to 27V wide V_BAT input  voltage operating range and have up to ±58V fault  protection on LIN bus, with integrated ESD protection, these  devices help to reduce external components in the design. Also, these devices feature low-power sleep mode, as well  as wake-up capability over LIN bus, or via the WAKE_N pin,  SLP_N pin. Inhibit output (INH) can be used to control one  or more external voltage regulators presented on a node to  reduce the battery power consumption at system level. In  the event of a ground shift or supply voltage disconnection,  the devices can prevent back-feed current through LIN to  the supply input.