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MC33199DR2
MOTOROLA SEMICONDUCTOR MC33199 Automotive ISO 9141 Serial Link Driver ISO 9141 SERIAL LINK DRIVER The MC33199D is a serial interface circuit used in diagnostic applications. It is the interface between the microcontroller and the special K and L lines of the ISO diagnostic port. The MC33199D has been designed to meet the «Diagnosis System ISO9141» specification. The device has a bi-directional bus K line driver, fully protected against short circuits and over temperature. It also includes the L line receiver, used during the wake up sequence in the ISO transmission. The MC33199D has a unique feature which allow transmission Baud rate up to 200kBauds. SEMICONDUCTOR TECHNICAL DATA • Electrically Compatible with Specification “Diagnosis System ISO9141” • Transmission speed up to 200kBauds • Internal Voltage Reference Genarator for Line Comparator Thresholds • Txd, Rxd and LO pins are 5V CMOS Compatible • High Current Capability of DIA pin (K line) • Short Circuit Protection for the K Line Input • Over Temperature Shutdown with Hysteresis • Large Operating Range of Driver Supply Voltage • Large Operating Temperature Range • ESD Protected pins Block Diagram and Typical Application Vcc REF-OUT VS Reference Generator Protection LO C2 + PIN CONNECTIONS L VCC RXD C1 + DIA 13 VS 3 12 L LO 4 11 I1 5 10 GND TXD 6 9 DIA NC I1 Vcc REF-OUT 2 REF-IN-K I1 source REF-IN-K 14 RXD REF-IN-L 1 REF-IN-L - 7 8 NC Thermal Shutdown TXD Driver GND Current Limit ORDERING INFORMATION Device Temperature Range Package MC33199D - 40°C to+125°C SO14 © Motorola,Inc 1996 Rev 1
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