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Freescale Semiconductor Electronic Components Datasheet



MC33661

Local Area Network (LIN) Enhanced Physical Interface


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MC33661 pdf
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Advance Information
Document Number: MC33661
Rev. 6.0, 11/2006
Local Area Network (LIN)
Enhanced Physical Interface
with Selectable Slew Rate
33661
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 33661 is a Physical Layer component dedicated to automotive
LIN sub-bus applications. It offers slew rate selection for optimized
operation at 10 kbps and 20 kbps, fast baud rate (above 100 kbps) for
test and programming modes, excellent radiated emission
performance, and safe behavior in the event of LIN bus short-to-ground
or LIN bus leakage during low-power mode.
The 33661 is compatible with LIN Protocol Specification 2.0.
Features
• Operational from VSUP 6.0 V to 18 V DC, Functional up to 27 V DC,
and Handles 40 V During Load Dump
• Active Bus Waveshaping Offering Excellent Radiated Emission
Performance
• 5.0 kV ESD on LIN Bus Pin
• 30 kInternal Pullup Resistor
• LIN Bus Short-to-Ground or High Leakage in Sleep Mode
• -18 V to +40 V DC Voltage at LIN Pin
• 8.0 µA in Sleep Mode
• Local and Remote Wake-Up Capability Reported by INH and
RXD Pins
• 5.0 V and 3.3 V Compatible Digital Inputs Without Any External
Components Required
• Pb-Free Packaging Designated by Suffix Code EF
LIN PHYSICAL INTERFACE
D SUFFIX
EF SUFFIX (PB-FREE)
98ASB42564B
8-PIN SOICN
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33661D/R2
MCZ33661EF/R2
-40°C to 125°C
8 SOICN
VPWR
VDD
Regulator
12 V
5.0 V
MCU
33661
WAKE VSUP
INH
EN
RXD LIN
TXD GND
LIN Bus
Figure 1. 33661 Simplified Application Diagram
* 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.



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MC33661 pdf
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VSUP
WAKE
EN
RXD
TXD
INH
Control
Control
20 µA
INH
Receiver
30 k
LIN
Slope
Control
GND
Figure 2. 33661 Simplified Internal Block Diagram
33661
2
Analog Integrated Circuit Device Data
Freescale Semiconductor



Part Number MC33661
Description Local Area Network (LIN) Enhanced Physical Interface
Maker Freescale Semiconductor - Freescale Semiconductor
Total Page 21 Pages
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