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L9680 Datasheet(PDF) 205 Page - STMicroelectronics

Part # L9680
Description  Automotive advanced airbag for mid/high end applications and cut-off battery IC
PDF  286 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9680 Datasheet(HTML) 205 Page - STMicroelectronics

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DS11615 Rev 7
205/286
L9680
Safing logic
285
Figure 57. Safing engine - Compare complete
G
CC_READ
N
Y
i = 14
N
Y
i = N?
N
Y
L9679?
i=10 &
N
< 0?
POS_COUNT[i]
N
< 0?
NEG_COUNT[i]
Y
- SUB_VAL
NEG_COUNT[i]
NEG_COUNT[i]=
- SUB_VAL
POS_COUNT[i]
POS_COUNT[i]=
= 1?
NO_DATA[i]
H
i=1
i++
matchCC[i] = 0
valCC[i] = 0
CC[i] = 0
N
Y
CC[i]=1?
N=17 (L9680)
N=17 (L9679)
N=5 (L9678)
Y
NEG_COUNT[i]=0
POS_COUNT[i]=0
NEG_COUNT[i]
POS_COUNT[i]
matchCC[i]
match[i]
CC[i]
Outputs:
POS_COUNT[i]=0
NEG_COUNT[i]=0
GAPGPS02296



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