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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SX8661Z 데이터시트(PDF) 27 Page - Semtech Corporation |
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SX8661Z 데이터시트(HTML) 27 Page - Semtech Corporation |
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27 / 87 page  ADVANCED COMMUNICATIONS & SENSING DATASHEET Revision v4.0, February 2016 © 2012 Semtech Corp. www.semtech.com 27 SX8661Z Low Power, Capacitive Button Touch and Proximity Controller (8 sensors) with LED Drivers and Analog Output During the power on period the SX8661Z stabilizes the internal regulators, RC clocks and the firmware initializes all registers. During the power up the SX8661Z is not accessible and I2C communications are forbidden. As soon as the INTB rises the SX8661Z will be ready for I2C communication. 3.16.2 RESETB When RESETB is driven low the SX8661Z will reset and start the power up sequence as soon as RESETB is driven high or pulled high. In case the user does not require a hardware reset control pin then the RESETB pin can be connected to VDD. VDD t res RESETB time SX8661 startup VDD INTB time t por SX8661Z ready Figure 24 Hardware Reset 3.16.3 Software Reset To perform a software reset the host needs to write 0xDE followed by 0x00 at the SoftReset register at address 0xB1. SoftReset register time SX8661 startup VDD INTB time t por 0xDE 0x00 SX8661Z ready Figure 25 Software Reset |
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