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Vs
Integrated pull/down/up resistors for LIN, TxD,
RxD, EN, INH
Inhibit output with low resistance (<40鈩? versus
Vs and short circuit protection
CMOS compatible TxD, RxD Interface
EMI robustness optimised
Thermal shutdown and LIN short circuit
protection
Table 1. Order Codes
Part Number
L9638D
L9638D013TR
Package
SO-8
Tape & Reel
SO-8
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2
DESCRIPTION
The L9638 is a monolithic integrated circuit for
LIN-bus interface function between the protocol
handler in the controller and the physical bus in
automotive applications.
As well as it can be used in standard ISO 9141
systems.
Figure 1. Block Diagram
VS
Int.5V
Internal
Voltage
Regulator
Glitch
Filter
VS_D
RxD
LIN
TxD
VS_D
EN
Control
Logic
Protection
INH
WUP
Glitch
Filter
GND
October 2004
Rev. 4
1/14
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