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Description

The Atmel ATA6663 is a fully integrated LIN transceiver complying with the LIN specification 2.0, 2.1 and SAEJ2602-2. The Atmel ATA6664 is anidentical version, the only difference is that the TXD-dominantTime-out function is disabled so the device is able to send a static low signal tothe LIN bus. It interfaces the LIN protocol handler and the physical layer. The device is designed to handle the low-speed data communication in vehicles, for example, inconvenience electronics. Improved slope control at the LIN bus ensures secure data communication at up to 20Kbaud with an

RC oscillator for protocol handling. Sleep Mode guarantees minimal current consumption even in the case of a floating bus line or a short circuit on the LIN bus to GND.

The ATA6663/ATA6664 feature advanced EMI and ESD performance.

Features

? Operating Range from 5V to 27V

? Baud Rate up to 20Kbaud

? Improved Slew Rate Control According to LIN Specification 2.0,2.1 and SAEJ2602-2

? Fully Compatible with 3.3V and 5V Devices

? Atmel ATA6663: TXD Time-out Timer, Atmel ATA6664: No TXD Time-out Timer

? Normal and Sleep Mode

? Wake-up Capability via LIN Bus (90μs Dominant)

? External Wake-up via WAKE Pin (35μs Low Level)

? INH Output to Control an External Voltage Regulator or to Switch the Master Pull-up

? Very Low Standby Current During Sleep Mode (10μA)

? Wake-up Source Recognition

? Bus Pin Short-circuit Protected versus GND and Battery

? LIN Input Current < 2μA if VBATIs Disconnected

? Overtemperature Protection

? High EMC Level

? Interference and Damage Protection According to ISO/CD 7637

? Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.1”