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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LC79451KB Datenblatt(PDF) 35 Page - ON Semiconductor |
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LC79451KB Datenblatt(HTML) 35 Page - ON Semiconductor |
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35 / 38 page  LC79451KB No.A2223-35/38 The following shows a connection example of I2C interface and charge-pump pin, when you use these two devices and share the charge-pump voltage. The figure omits the capacitor connection of the power supply. Please set CP_F12: 11 = (0, 1) (control register 1) to the slave side. Please input START command of control register 4 to slave device just after input to master device. Fig.17. I 2C interface connection example (Joint charge-pump voltage) Notice : The use example using the plural IC is out of a guarantee. TEST LC79451KB ZVDD ZVSS TESTLOUT RESET VSS ID1 ID2 VDD IFSEL VSS SPIDRW CS SDA SCL TESTAOUT BUSY DAOUT VDD2 Controller VDD VDD2 VSS pull-up TEST LC79451KB ZVDD ZVSS TESTLOUT RESET VSS ID1 ID2 VDD IFSEL VSS SPIDRW CS SDA SCL TESTAOUT BUSY DAOUT VDD2 VOUT0 C01A C01B C11A C11B VOUT1 C21A C21B C22A C22B VOUT2 C31A C31B VOUT3 VOUT0 C01A C01B C11A C11B VOUT1 C21A C21B C22A C22B VOUT2 C31A C31B VOUT3 |
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