WebApr 9, 2024 · 图4为DS12887的结构框图，DS12887是DALLAS公司的实时时钟芯片RTC（Real Time Clock），它功能丰富，应用广泛，PC机内的时钟信号就是由D512887提供的。DS12887内部自带晶体振荡器及锂电池，可计算到2100年前的秒、分、小时、星期、日、月、年七种日历信息并带闰年补偿 ... WebJun 26, 2005 · Two RTC chips made by Maxim-Dallas which are often used successfully · with the Stamp are the DS1302, and the DS1307. Attached you will find the datasheets and some sample programs for using them. One of the chips (the DS1307 I think) is very similar to the DS12887 in function but it uses a much more micro-controller friendly 2-wire serial ...

DS12887 RTC Drop-In Replacement - Monotech PCs

WebThe Situation: You have either a PS/2 25-286, 30-286, 55 or 65 which comes up with a "165 configuration error" and fails to keep the setup once been shut off again. Well - these have the dreaded Dallas DS1287 "all in one" Real Time Clock (RTC) chip with integrated Xtal and battery. Now the battery is dead, configuration is lost after relatively short time again and … help my butt hurts

DALLAS Maxim - DS12887 - IC. Real Time Clock - Electronics …

WebDESCRIPTION The DS12C887 Real Time Clock plus RAM is designed as a direct upgrade replacement for the DS12887 in existing IBM compatible personal computers to add hardware year 2000 compliance. A century byte was added to memory location 50, 32h, as called out by the PC AT specification. WebThese modules are 100% compatible with Dallas DS12887 modules -- they're made with a new Dallas DS12885. Unlike a DS12887, this module features a replaceable coin cell in a holder. When the battery dies, … http://www.walshcomptech.com/ps2/dallasrework.html help my business is holding me hostage