L9678P datasheet(125/203 Pages) STMICROELECTRONICS

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L9678P データシート(PDF) 125 Page - STMicroelectronics

部品番号	L9678P

部品情報	Automotive user configurable airbag IC

PDF	203 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

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125 / 203 page

DocID029274 Rev 3

125/203

L9678P, L9678P-S

Remote sensor interface

202

thresholds must be selected. In this way the device will detect the battery loss condition in

time to guarantee the minimum RSU output voltage required.

Figure 31. Remote sensor interface block diagram

7.1

PSI-5 protocol

All channels are compliant to the PSI-5 v1.3 specification as described below:



Two-wire current interface



Manchester coded digital data transmission



High data transmission speeds of 125 kbps and 189 kbps



Variable data word length (8 & 10 bit only)



1-bit parity



Asynchronous operation mode

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