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NXP ¹«Ë¾µÄTJA1021ÊÇLIN 2.0/SAE J2602ÊÕ·¢Æ÷¡£ËüÔÚ±¾µØ»¥ÁªÍøÂç(LIN)Ö÷/´ÓЭÒé¿ØÖÆÆ÷ºÍLINÖÐÎïÀí×ÜÏß¼ä½øÐнӿڡ£ËüºÍLIN 2.0/SAE J2602±ê×¼¼æÈÝ£¬ÔÚ³µÄÚµÄ×ÓÍøÂçµÄ²¨ÌØËÙÂÊ´Ó1 kBd µ½ 20 kBd¡£ËüºÍTJA1020Òý½Å¼æÈÝ£¬²¢¸Ä½øÁËESD±£»¤ÐÔÄÜ¡£±¾ÎĽéÉÜÁËTJA1021µÄÖ÷ÒªÐÔÄÜ£¬·½¿òͼÒÔ¼°ºÍ΢¿ØÖÆÆ÷¼äµÄµäÐÍÓ¦Óõç·ͼ¡£LIN 2.0/SAE-J2602 standalone transceiver TJA1021LIN lets you easily interconnect locally applied sensors, actuators and switches (in switch panels, door and seat modules for example) to the CAN backbone with a standardized front end. This helps significantly reduce costs and design-in effort for a wide range of human reaction time triggered applications, such as powered mirrors and windows.The rapid adoption by automotive makers of the LIN 2.0 protocol has made this cost-effective,low-speed serial communication system bus the natural choice for arbitration-free local communications. Optimized for reliable and cost-effective LIN master and slave node implementations, with its sleep current consumption < 10¦ÌA and providing IEC-61000-4-2 compliant ¡À 6 kV ESD protection, the TJA1021 gives you the leading-edge when creating LIN systems.The TJA1021 is the interface between the Local Interconnect Network (LIN) master/slave protocol controller and the physical bus in a LIN. It is primarily intended for in-vehicle sub-networks using baud rates from 1 kBd up to 20 kBd and is LIN 2.0/SAE J2602 compliant. The TJA1021 is pin-to-pin compatible with the TJA1020 and improved on ElectroStatic Discharge (ESD).The transmit data stream of the protocol controller at the transmit data input (TXD) isconverted by the TJA1021 into a bus signal with optimized slew rate and wave shaping to minimize ElectroMagnetic Emission (EME). The LIN bus output pin is pulled HIGH via an internal termination resistor. For a master application an external resistor in series with a diode should be connected between pin INH or pin VBAT and pin LIN. The receiver detects the data stream at the LIN bus input pin and transfers it via pin RXD to the microcontroller.In sleep mode the power consumption of the TJA1021 is very low. In failure modes thepower consumption is reduced to a minimum.Ö÷ÒªÌØÐÔ£ºÍ¨ÓÃÌØÐÔLIN 2.0/SAE J2602 compliantBaud rate up to 20 kBdVery low ElectroMagnetic Emission (EME)High ElectroMagnetic Immunity (EMI)Passive behavior in unpowered stateInput levels compatible with 3.3 V and 5 V devicesIntegrated termination resistor for LIN slave applicationsWake-up source recognition (local or remote)Supports K-line like functionsPin-to-pin compatible with TJA1020µÍ¹¦ºÄ¹ÜÀíVery low current consumption in sleep mode with local and remote wake-up±£»¤ÐÔÄÜHigh ESD robustness: &#61617;6 kV according to IEC 61000-4-2 for pins LIN, VBAT andWAKE_NTransmit data (TXD) dominant time-out functionBus terminal and battery pin protected against transients in the automotiveenvironment (ISO 7637)Bus terminal short-circuit proof to battery and groundThermally protectedÖ÷ÒªÓÅÊÆ: Helps meet car maker¡¯s ESD requirements without the need for external componentsLow quiescent current (< 10¦ÌA) helps meet more relaxed current consumption targetsLeadless HVSON8 package offers 60% board space reduction compared to SO8Fail-safe features allowing easier design-inEasily interfaces with a wide range of microcontrollersZero reverse bus current allows partial networking without introducing extra network design complexityDrop-in replacement for TJA1020ͼ1¡£TJA1021·½¿òͼͼ2¡£TJA1021µäÐÍÓ¦Óõç·ͼ£¨1£©Í¼3¡£TJA1021µäÐÍÓ¦Óõç·ͼ£¨2£©

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