Серия интегральных часов реального времени BL5372

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 Раздел Часы реального времени
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Документация на серию BL5372

低功耗实时时钟芯(RTC)BL5372 用 户 手 册 V1.2 ( 2012.11.12) 上海贝岭股份有限公司 Shanghai Belling Co., Ltd. PDF
Документация на BL5372T 

Microsoft Word - BL5372_UMAN_V1.1.doc

Дата модификации: 15.11.2012

Размер: 833.3 Кб

32 стр.

BL5372 Low Power Real-Time Clock (RTC) SHANGHAI BELLING GENERAL DESCRIPTION FEATURES The BL5372 is a CMOS type real-time clock, which is connected to the CPU via two wires and capable of serial transmission of clock to the CPU. The BL5372 can generate various periodic interrupt clock pulses lasting for long period (one month), and alarm interrupt can be made by two incorporated systems. Since an oscillation circuit is driven at a constant voltage, it undergoes fluctuations of few voltage and consequently offers low current consumption (TYP. 400nA @ 5V) It also provides an oscillator halt sensing function applicable for data validation at power-on and other occasions. The product also incorporates a time trimming circuit that adjusts the clock with higher precision by adjusting any errors in crystal oscillator frequencies based on signals from the CPU. The crystal oscillator may be selected from 32KHz or 32.768KHz types. It adopts 8-pin SOP or TSSOP package. ƒ Lowest supply current: 400nA TYP. @ 5V ƒ Connected to the CPU via only 2-wires (MAX. 100KHz) ƒ A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years, months, days, and days of the week) in BCD codes ƒ Two systems output providing interrupt to the CPU output (period of one month to one second, interrupt halt function) ƒ Two systems output of alarm functions ƒ Oscillation halt sensing to judge internal data validity ƒ Clock output of 32.768KHz (32KHz) (output controllable via a register) ƒ Second digit adjustment by ±30 seconds ƒ Automatic leap year recognition up to the year 2099 ƒ 12-hour or 24-hour time display selectable ƒ High precision time trimming circuit ƒ Oscillator of 32.768KHz or 32KHz may be used ƒ CMOS logic ƒ Package: 8pin SOP or TSSOP BL5372 Data Sheet 1 PDF
Документация на BL5372 

Microsoft Word - BL5372datasheet_en_v11.doc Keywords:

Дата модификации: 08.03.2012

Размер: 874 Кб

30 стр.

    Товары серии BL5372

    Наименование i Упаковка Корпус Особенности
    BL5372 (CN BELL)
     
     
    		 в ленте 2500 шт SOP-8 12/24 hours modes, automatic recognition of leap and common year, BCD code, two programmable alarm outputs, two programmable square wave outputs, Open Drain CLK/INT Output, High-precision time adjustment, 32KHz and 32.768KHz crystal oscillator options
    BL5372T (CN BELL)
     
    		5 шт TSSOP-8 12/24 hours modes, automatic recognition of leap and common year, BCD code, two programmable alarm outputs, two programmable square wave outputs, Open Drain CLK/INT Output, High-precision time adjustment