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ST7538Q bảng dữ liệu(PDF) 7 Page - STMicroelectronics |
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ST7538Q bảng dữ liệu(HTML) 7 Page - STMicroelectronics |
7 / 44 page ST7538Q Pin settings 7/44 25 SGND Supply Analog Signal Ground 26 XOUT Analog Output Crystal Output 27 XIN Analog Input Crystal Oscillator Input - External Clock Input 28 AVdd Supply Analog Power supply. 29 Vsense(3) Analog/Input Output Voltage Sensing input for the voltage control loop 30 TEST2 Analog/Input Test Input must be connected SGND 31 RxFO Analog/Output Receiving Filter Output 32 RAI Analog/Input Receiving Analog Input 33 VDC Power 5V Voltage Regulator Output 34 NC floating Must Be connected to DVss. 35 TEST1 Digital/Input with internal pull-down Test input. Must Be connected to DVss. 36 REGOK Digital/Output Security checksum logic output "1" - Stored data Corrupted "0" - Stored data OK 37 C_MINUS(4) Analog/Input Op-amp Inverting Input. 38 C_PLUS(5) Analog/Input Op-amp Not Inverting Input. 39 NC floating Must Be connected to DVss 40 C_OUT Analog/Output Op-amp Output 41 GND Supply Substrate Ground (same function as PIN 6) 42 PG Digital/Output Power Good logic Output "1" - VDC is above 4.5V and DVdd is above 3.125V "0" - VDC is below 4.25V or DVdd is below 2.875V 43 REG_DATA Digital/Input with internal pull-down Mains or Control Register Access Selector "1" - Control Register Access "0" - Mains Access 44 NC floating Must be connected to DVss. 1. If not used this pin must be connected to VDC 2. Cannot be left floating 3. Cannot be left floating 4. If not used this pin must be connected to VDC 5. If not used this pin must be tied low (SGND or PAVss or DVss) Table 1. Pin description (continued) Pin N° Name Type Description |
Số phần tương tự - ST7538Q |
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Mô tả tương tự - ST7538Q |
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