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L9678P Datasheet(PDF) 151 Page - STMicroelectronics

Part # L9678P
Description  Automotive user configurable airbag and battery cut-off IC
PDF  215 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P Datasheet(HTML) 151 Page - STMicroelectronics

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 151 / 215 page
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DS11626 Rev 9
151/216
L9678P, L9678P-S
Safing logic
214
Figure 45. Safing engine - compare complete
GAPGPS01650
CC[i]=1?
Y
N
CC[i] = 0
valCC[i] = 0
matchCC[i] = 0
i++
G
i=1
H
Outputs:
CC[i]
match[i]
matchCC[i]
POS_COUNT[i]
NEG_COUNT[i]
CC_READ
NO_DATA [i]
= 1?
POS_COUNT[i]=0
POS_COUNT[i]=
POS_COUNT[i]
- SUB_VAL
NEG_COUNT[i]=
NEG_COUNT[i]
- SUB_VAL
Y
N
NEG_COUNT[i]
< 0?
Y
N
NEG_COUNT[i]=0
POS_COUNT[i]
< 0?
Y
N
NEG_COUNT[i]=0
POS_COUNT[i]=0
Y
i=10 &
L9679?
Y
N
N=5 (L9678)
N=17 (L9679)
N=17 (L9680)
i = N?
Y
N
i = 14



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