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零件编号 | 33399 | ||
描述 | Local Interconnect Network (LIN) Physical Interface | ||
制造商 | Freescale Semiconductor | ||
LOGO | |||
1 Page
Freescale Semiconductor
Technical Data
Document Number: MC33399
Rev. 10.0, 4/2013
Local Interconnect Network
(LIN) Physical Interface
33399
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. This device
is powered by SMARTMOS technology.
The 33399 is a physical layer component dedicated to automotive
sub-bus applications. It offers communication speed 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
• Nominal operation from VSUP 7.0 to 18 V DC, functional up to
27 V DC battery voltage and capable of handling 40 V during load
dump
• Active bus waveshaping to minimize radiated emission
• ±5.0 kV ESD on LIN Bus Pin, ±4.0 kV ESD on other pins
• 30 k internal pull-up 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
LIN PHYSICAL INTERFACE
EF SUFFIX (PB-FREE)
98ASB42564B
8 PIN SOICN
ORDERING INFORMATION
Device
(Add R2 Suffix for
Tape and Reel)
Temperature
Range (TA)
Package
MC33399PEF
-40 to 125 °C
8 SOICN
VPWR
Regulator
12 V
5.0 V
MCU
33399
VSUP WAKE
INH
GND
EN
TXD
RXD LIN
Figure 1. 33399 Simplified Application Diagram
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., 2006-2013. All rights reserved.
LIN Bus
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
TIMING DIAGRAMS
TXD
Recessive State
VREC
LIN tTXDLINL
RXD
Recessive State
VREC - 0.2 V
0.6 VSUP
0.4 VSUP
VDOM
Dominant State
VDOM + 0.2 V
t RXDLINH
t TXDLINH
t RXDLINL
Figure 4. Normal Mode Bus Timing Characteristics
t FALL
0.8 VSUP
t RISE
0.2 VSUP
0.8 VSUP
0.2 VSUP
Figure 5. LIN Rise and Fall Time
Recessive State
VSUP
LIN 0.4 VSUP
Dominant State
INH
t PROPWL
Figure 6. LIN Bus Wake-up
33399
8
Analog Integrated Circuit Device Data
Freescale Semiconductor
REFERENCE DOCUMENTS
REFERENCE DOCUMENTS
Table 6. Reference Documents
Title
Local Interconnect Network (LIN) Physical Interface: Difference Between MC33399 and MC33661
LIterature Order Number
EB215
33399
16
Analog Integrated Circuit Device Data
Freescale Semiconductor
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页数 | 19 页 | ||
下载 | [ 33399.PDF 数据手册 ] |
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