The 33660 is a serial link bus interface device designed to provide bi-directional half-duplex communication interfacing in automotive diagnostic applications. It is designed to interface between the vehicle’s on-board microcontroller and systems off-board the vehicle via the special ISO K line. The 33660 is designed to meet the Diagnostic System ISO9141 specification. The device’s K line bus driver’s output is fully protected against bus shorts and overtemperature conditions.
Features
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Operates Over Wide Supply Voltage of 8.0 to 18 V
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Operating Temperature of -40 to 125 °C
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Interfaces Directly to Standard CMOS Microprocessors
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ISO K Line Pin Protected Against Shorts to Battery
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Thermal Shutdown with Hysteresis
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ISO K Line Pin Capable of High Currents
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ISO K Line Can Be Driven with up to 10 nF of Parasitic Capacitance
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8.0 kV ESD Protection Attainable with Few Additional Components
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Standby Mode: No VBat Current Drain with VDD at 5.0 V
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Low Current Drain During Operation with VDD at 5.0 V
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