Document Number: MC33199

Rev. 4.0, 10/2006

Freescale Semiconductor

Technical Data

Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as

may be required, to permit improvements in the design of its products.

© Freescale Semiconductor, Inc., 2006. All rights reserved.

Automotive ISO 9141 Serial Link

Driver

The MC33199 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 MC33199 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 MC33199 has a unique feature which allow transmission Baud

rate up to 200kBaud.

Features

• Electrically Compatible with Specification “Diagnosis System

ISO9141”

• Transmission speed up to 200kBaud

• Internal Voltage Reference Generator 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

• Pb-Free Packaging Designated by Suffix Code EF

Figure 1. Simplified Application Diagram

LIN, ISO-9141 J-1850 PHYSICAL

INTERFACES

D SUFFIX

EF SUFFIX (PB-FREE)

PLASTIC PACKAGE

98ASB42565B

14 PIN SOIC

ORDERING INFORMATION

Device

Temperature

Package

MC33199D

-40°C to 125°C

14 SOIC

MCZ33199EF/R2

33199

VCC

LO

RXD

TXD

VS

L

I1

DIA

GND

33199

MCU

VDD

I/O

SCIRXD

SCITXD

ISO L-LINE

ISO K-LINE

VDD

(BUS)