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AS1920 데이터시트(PDF) 2 Page - ams AG |
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AS1920 데이터시트(HTML) 2 Page - ams AG |
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2 / 14 page ![]() www.austriamicrosystems.com Revision 1.00 2 - 14 AS1920/AS1922 Datasheet - P i n o u t 4 Pinout Pin Assignments Figure 2. Pin Assignments (Top View) Pin Descriptions Table 2. Pin Descriptions Pin Number Pin Name Description 1 RESETN Reset Logic Output. This active-low pin serves as the 3V push/pull reset output. A reset is asserted when any one of the supplies are below its respective trip threshold and the reset is held for 200ms after all power supplies have stabilized. 2GND Ground. 3VCCA VCCA. 1V sense, high-impedance input. Note: If this pin is not used it should be tied to VCC3 or VCC18. 4VCC18 VCC18. 1.8V sense input and power detect pin (AS1920-18, AS1922-18). This pin provides power to the output reset stage of the device in order to assert a valid reset when the voltage on the primary input is down. Note: Bypass this pin to GND with a ≥0.1µF ceramic capacitor. 5VCC3 VCC3. 3V sense input and power supply pin (AS1920-18, AS1922-18). This pin provides power to the device. Note: Bypass this pin to GND with a ≥0.1µF ceramic capacitor. AS1920/ AS1922 2 GND 3 VCCA 1 RESETN 4 VCC18 5 VCC3 5 VCC3 4 VCC18 |
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