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SW52212 Datasheet(PDF) 25 Page - Silicon Laboratories

Part # SW52212
Description  12/8/4/2-Output PCI-Express Gen 1/2/3/4/5 and SRIS Clock Generator
PDF  71 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SW52212 Datasheet(HTML) 25 Page - Silicon Laboratories

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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
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