Real-Time Clock

General Description The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square w

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MAXIM

美信

Real-Time Clock

General Description The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square w

文件：361.41 Kbytes 頁(yè)數(shù)：22 Pages

MAXIM

美信

Real Time Clock

DESCRIPTION The DS1287A is identical to the DS1287 with the addition of the RAM clear pin. For a complete description of operating conditions, electrical and mechanical characteristics, bus timing, and pin descriptions see the DS12887A data sheet. FEATURES ?Drop-in replacement for IB

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DALLAS

Real-Time Clocks

文件：268.46 Kbytes 頁(yè)數(shù)：22 Pages

MAXIM

美信

Real-Time Clock

General Description The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287. The devices provide a real-time clock/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square w

文件：361.41 Kbytes 頁(yè)數(shù)：22 Pages

MAXIM

美信

Real-Time Clocks

文件：268.46 Kbytes 頁(yè)數(shù)：22 Pages

MAXIM

美信

實(shí)時(shí)時(shí)鐘

DS12885、DS12887和DS12C887實(shí)時(shí)時(shí)鐘(RTC)可用來(lái)直接替代DS1285和DS1287。該器件提供一個(gè)實(shí)時(shí)時(shí)鐘/日歷、定時(shí)鬧鐘、三個(gè)可屏蔽中斷(共用一個(gè)中斷輸出)、可編程方波輸出和114字節(jié)的電池備份靜態(tài)RAM (DS12C887和DS12C887A包含113字節(jié)RAM)。DS12887在24引腳模塊DIP封裝內(nèi)集成了晶體和鋰電池。DS12C887在地址32h內(nèi)增加了世紀(jì)字節(jié)。對(duì)于少于31天的月份，所有器件的日期能夠在月末自動(dòng)調(diào)整，帶有閏年補(bǔ)償。該器件可配置為24小時(shí)或12小時(shí)格式，帶AM/PM指示。精確的溫度補(bǔ)償電路用于監(jiān)視的VCC狀態(tài)。一旦檢測(cè)到主電源失效，器件可自動(dòng)切 ·直接替代IBM AT計(jì)算機(jī)時(shí)鐘/日歷\n·RTC計(jì)算秒、分、時(shí)、星期、日、月、年信息，具有潤(rùn)年補(bǔ)償，有效期至2099年\n·用二進(jìn)制或BCD表示時(shí)間\n·具有AM、PM標(biāo)示的12小時(shí)模式或24小時(shí)模式\n·夏時(shí)制選擇\n·可選擇Intel或Motorola總線時(shí)序\n·接口配合軟件可尋址128 RAM\n·14字節(jié)時(shí)鐘與控制寄存器\n·114字節(jié)通用、電池備份RAM (DS12C887和DS12C887A為113字節(jié))\n·清除RAM功能(DS12885、DS12887A和DS12C887A)\n·三路中斷可分別通過(guò)軟件屏蔽與檢測(cè)\n·鬧鐘可設(shè)置為每秒一次至每星期一次\n·周期可設(shè)置在122;

ADI

亞德諾

Package：24-DIP 模塊（0.600"，15.24mm）；包裝：卷帶（TR） 類別：集成電路（IC） 實(shí)時(shí)時(shí)鐘 描述：IC RTC CLK/CALENDAR PAR 24-EDIP

AD

亞德諾

Package：24-DIP 模塊（0.600"，15.24mm）；包裝：管件 類別：集成電路（IC） 實(shí)時(shí)時(shí)鐘 描述：IC RTC CLK/CALENDAR PAR 24-EDIP

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亞德諾