ADE7518

www.DataSheet4U.com Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver ADE7518 MICROPROCESSOR FEATURES 8052-based core Single-cycle 4 MIPS 8052 core 8052-compatible instruction set 32.768 kHz external crystal with on-chip PLL Two external interrupt sources External reset pin Low power battery mode Wake-up from I/O, alarm, and universal asynchronous receiver/transmitter (UART) LCD driver operation Real-time clock Counter for seconds, minutes, and hours Automatic battery switchover for RTC backup Operation down to 2.4 V Ultralow battery supply current: 1.5 μA Selectable output frequency: 1 Hz to 16.384 kHz Embedded digital crystal frequency compensation for calibration and temperature variation: 2 ppm resolution Integrated LCD driver 108-segment driver 2×, 3×, or 4× multiplexing LCD voltages generated with external resistors On-chip peripherals UART, SPI or I2C, and watchdog timer Power supply management with user-selectable levels Memory: 16 kB flash memory, 512 bytes RAM Development tools Single-pin emulation IDE-based assembly and C-source debugging GENERAL FEATURES Wide supply voltage operation: 2.4 V to 3.7 V Internal bipolar switch between regulated and battery inputs Ultralow power operation with power saving modes Full operation: 4 mA to 1.6 mA (PLL clock dependent) Battery mode: 3.2 mA to 400 μA (PLL clock dependent) Sleep mode Real-time clock (RTC) mode: 1.5 μA RTC and LCD mode: 27 μA Reference: 1.2 V ± 0.1% (10 ppm/°C drift) 64-lead RoHS package ...