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SW52212 Scheda tecnica(PDF) 25 Page - Silicon Laboratories |
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SW52212 Scheda tecnica(HTML) 25 Page - Silicon Laboratories |
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25 / 71 page ![]() 5.14 REF/SA Pin Figure 5.8. REF/SA Pin Function The REF/SA pin is a dual-function input/output pin. The SA functionality sets the Slave Address of the part. This address is latched to the value of the pin when the part initially powers up. See Table 8.1 SA State on First Application of PWRGD/PWRDNb on page 32 for the available addresses. By default, the internal 60 kΩ pull-up resistor will set SA to a value of 1. To drive the pin low, use a 10 kΩ pull-down resistor. After the I2C address is latched on first power up, the REF/SA pin assumes its REF functionality. In REF mode, it will output a 25 MHz LVCMOS signal. Data Sheet Functional Description silabs.com | Building a more connected world. Rev. 1.0 | 25 |
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