ST8939

ST8939 Low power consumption: 0.6μA typical (Ta=25C). Operating voltage: 1.8V~5.5V; Timekeeping voltage: 1.5~5.5V. Operating temperature:-40C~+105C. Accuracy at room temperature is<±5ppm. Standard IIC bus interface mode, maximum speed 400kHz. Chip pin ESD>4KV Pass 4 kV EFT Interference Test CMOS Process Package Form:SOP8(150mil)&MSOP8.