Document Number: MC33399

Rev. 8.0, 10/2006

Freescale Semiconductor

Advance Information

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

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

Local Interconnect Network

(LIN) Physical Interface

Local Interconnect Network (LIN) is a serial communication

protocol designed to support automotive networks in conjunction with

Controller Area Network (CAN). As the lowest level of a hierarchical

network, LIN enables cost-effective communication with sensors and

actuators when all the features of CAN are not required.

The 33399 is a Physical Layer component dedicated to automotive

sub-bus applications. It offers speed communication from 1.0 kbps to

20 kbps, and up to 60 kbps for Programming Mode. It has two

operating modes: Normal and Sleep.

The 33399 supports LIN Protocol Specification 1.3.

Features

27 V DC Battery Voltage and Capable of Handling 40 V During

Load Dump

• Active Bus Waveshaping to Minimize Radiated Emission

•30 k

Ω Internal Pullup Resistor

• Ground Shift Operation and Ground Disconnection Fail-Safe at

Module Level

• An Unpowered Node Does Not Disturb the Network

•20 µA in Sleep Mode

• Wake-Up Capability from LIN Bus, MCU Command and Dedicated

High Voltage Wake-Up Input (Interface to External Switch)

• Interface to MCU with CMOS-Compatible I/O Pins

• Control of External Voltage Regulator

• Pb-FREE packaging designated by package code EF

Figure 1. 33399 Simplified Application Diagram

LIN PHYSICAL INTERFACE

33399

ORDERING INFORMATION

Device

Temperature

Package

MC33399D/R2

-40°C to 125°C

8 SOICN

MCZ33399EF/R2

D SUFFIX

EF SUFFIX (PB-FREE)

98ASB42564B

8 PIN SOICN

LIN Bus

5.0 V

Regulator

33399

MCU

INH

EN

TXD

RXD

VSUP

WAKE

GND

LIN

12 V