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L9678P Fiches technique(PDF) 14 Page - STMicroelectronics

No de pièce L9678P
Description  Automotive user configurable airbag IC
PDF  203 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9678P Fiches technique(HTML) 14 Page - STMicroelectronics

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Absolute and operative maximum ratings
L9678P, L9678P-S
14/203
DocID029274 Rev 3
2.2
Operative maximum ratings
Within the operative ratings the part operates as specified and without parameter
deviations. Once taken beyond the operative ratings and returned back within, the part will
recover with no damage or degradation.
Additional supply-voltage and temperature conditions are given separately at the beginning
of each specification table.
61
COVRACT
External crossover switch control
-0.3
VDDQ+0.3
6.5
V
62
VDDQ
I/O supply
-0.3
6.5
V
63
ARM
Arming Output
-0.3
VDDQ+0.3
6.5
V
64
GNDSUB2
Substrate ground
-0.3
0.3
V
1.
Not connected internally, should be connected to GND externally.
Table 2. Absolute maximum ratings (continued)
Pin #
Pin name
Pin function
Min.
Max.
Unit
Table 3. Operative maximum ratings
Pin #
Pin name
Pin function
Min.
Max.
Unit
1
RESET
Reset output
-0.1
VDDQ+0.1
5.5
V
2
SPI_MISO
SPI interface data out / Safing sensor data in
-0.1
VDDQ+0.1
5.5
V
3
SPI_MOSI
SPI interface data in
-0.1
VDDQ+0.1
5.5
V
4
SPI_SCK
SPI interface clock
-0.1
VDDQ+0.1
5.5
V
5
SPI_CS
SPI interface chip select
-0.1
VDDQ+0.1
5.5
V
6
WDT/TM
Watchdog disable
-0.1
20
V
7
VDD3V3
3.3V regulator output
-0.1
3.6
V
8
NC
Not connected(1)
--
-
9
CVDD
Internal 3.3V regulator output
-0.1
3.6
V
10
GNDD
Digital ground
-0.1
0.1
V
11
SR0
Squib 0 low-side pin
-0.1
VER
V
12
SF0
Squib 0 high-side pin
-1.0
VER
V
13
SG01
Squib 0 & 1 deployment ground pin
-0.1
0.1
V
14
SS01
Squib 0 & 1 deployment supply pin
-0.1
40
V
15
SF1
Squib 1 high-side pin
-1.0
VER
V
16
SR1
Squib 1 low-side pin
-0.1
VER
V
17
DCS3
Sensor switch interface channel 3
-1.0
VDCS_L
V
18
DCS2
Sensor switch interface channel 2
-1.0
VDCS_L
V
19
DCS1
Sensor switch interface channel 1
-1.0
VDCS_L
V
20
DCS0
Sensor switch interface channel 0
-1.0
VDCS_L
V
21
VRESDIAG
Reserve voltage diagnostic input
-0.1
35
V
22
RSU0/NC
PSI-5 Ch. 0 remote sensor output (only
L9678P-S), NC on L9678P
-1.0
VSUP
V



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