DS1685.pdf 查询DS1685_05供应商 DS1685/DS1687 3V/5V Real-Time Clocks www.maxim-ic.com FEATURES Incorporates Industry-Standard DS1287 PC Clock RAM Clear Input plus Enhanced Features Such as: Y2K Compliant Century Register +3V or +5V Operation Date Alarm Register 64-Bit Silicon Serial Number Compatible with Existing BIOS for Original Power-Control Circuitry Supports System ……