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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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L9679P Fiches technique(PDF) 203 Page - STMicroelectronics |
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L9679P Fiches technique(HTML) 203 Page - STMicroelectronics |
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203 / 279 page  DS11627 Rev 7 203/279 L9679P Safing logic 278 Figure 59. Safing engine diagnostic logic A configurable mask for each internal ARMxINT signal is available for all of the integrated deployment loops. The un-masked ARMxINT signal for each loop will enable the respective loop drivers. Activation of VSF (regulation rail for High Side Safing FET) occurs upon ARMxINT. Actual High Side Safing FET activation still requires microcontroller signal. L9679P is able to provide arming signals to external deployment loops by means of four discrete output ARMx pins. SPI Decode / Threshold Compare SCLK_RS MOSI_RS MISO_RS CS_RS SAF_CS0 SAF_CS1 SAF_CS2 SAF_CS3 Pulse Stretch DS_TEST(VSF) DIAG STATE DSTEST(ARM1) ARM1REQ DSTEST(ARM2) ARM2REQ DSTEST(ARM3) ARM3REQ DSTEST(ARM4) ARM4REQ ARMING STATE DSTEST(PULSE) PULSE_TEST1 PULSE_TEST12 GAPGPS02298 |
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