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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VX6854LC датащи(PDF) 16 Page - STMicroelectronics |
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VX6854LC датащи(HTML) 16 Page - STMicroelectronics |
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16 / 114 page  Device pinout VX6854LC 16/114 DocID027110 Rev 2 2.1 ESD protection diodes The ESD protection diodes can be used to check the connectivity. To test for connectivity, draw 100 uA from the pin and measure the voltage. If the voltage is less than 180 mV or greater than 900 mV the test fails. ST test T1-T8 ST test pins Do not connect(4) 1. VCAP is internal to the module. An additional 220nF capacitor may also be connected to this pin. 2. Signal is active low. 3. The EXTCLK pad has a Schmitt trigger input 4. Test pins are not floating. Table 4. Pin description (continued) Pad number Pad name I/O type Description Table 5. ESD protection diodes S854 SMIA65 Pin name Pin number ESD protected Diode to VDIG Diode to GND VCAP 1 YES NO YES VANA 2 YES NO YES XSHUTD 3 YES NO YES EXTCLK 4 YES NO YES SCL 5 YES NO YES SDA 6 YES NO YES DGND 7 YES YES YES CLKN 8 YES Diode to local supply Diode to GNDE CLKP 9 YES Diode to local supply Diode to GNDE VDIG 10 YES NO YES DATAN 11 YES Diode to local supply YES DATAP 12 YES Diode to local supply YES |
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