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AS8218 数据表(PDF) 3 Page - ams AG |
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AS8218 数据表(HTML) 3 Page - ams AG |
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3 / 123 page  Data Sheet AS8218 / AS8228 Revision 3.0, 31-May-06 Page 3 of 123 3. Typical Application Circuit Analog Front End System Timing & RTC System Control I/Os LCD Driver SPI DSP MCU UART1 SDM RTC Low Power Divider Low Power Oscillator LSD0 LSD5 LSD6 LSD4 LSD3 LSD2 LSD1 IO0 LSD19 LSD18 LSD17 LSD16 LSD15 LSD14 LSD13 LSD12 LSD11 LSD10 LSD9 LSD8 LSD7 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 9 10 11 12 15 16 17 19 18 23 20 LCD LED FAULT DIRO 24 25 IO5 IO4 IO3 IO2 IO1 IO6 IO7 IO8 Reference pulses for calibration Examples only S_N SI SC SO 40 22 37 38 39 7 VDDD 3.3V VDDA 33 XOUT 32 XIN 3.3V I1P I1N 31 3 4 SDM I2P I2N 6 5 SDM VP VN 1 2 29 30 TXD RXD 8 VSSA 14 VSSD 3.3V VDD_BAT kWh Vrms Irms Multi- purpose I/Os Push-Button 13 21 VSSD LSD23 LSD22 LSD21 LSD20 61 62 63 64 26 28 27 IO9 IO10 IO11 LOAD VI VO GND 3.3V NL + VSS 3.3V 3.3V 3.3V 1 3 2 4 8 6 7 5 Q HOLD VCC C D W S AS8228 only + + RES_N WDT 34 Figure 1: Typical application circuit of the AS8218 / AS8228 |
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