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PCF85363ATT/A PDF预览

PCF85363ATT/A

更新时间: 2024-11-19 02:50:35
品牌 Logo 应用领域
恩智浦 - NXP /
页数 文件大小 规格书
86页 966K
描述
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus

PCF85363ATT/A 数据手册

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PCF85363A  
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm  
function, battery switch-over time stamp input, and I2C-bus  
Rev. 3.1 — 18 June 2021  
Product data sheet  
1 General description  
The PCF85363A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low  
power consumption and with automatic switching to battery on main power loss. The  
RTC can also be configured as a stop-watch (elapsed time counter). Three time log  
registers triggered from battery switch-over as well as input driven events. Featuring  
clock output and two independent interrupt signals, two alarms, I2C interface and quartz  
crystal calibration, 64 byte battery backed-up RAM.  
For a selection of NXP Real-Time Clocks, see Table 71.  
2 Features and benefits  
UL Recognized Component (PCF85363ATL)  
Provides year, month, day, weekday, hours, minutes, seconds and 100th seconds  
based on a 32.768 kHz quartz crystal  
Stop-watch mode for elapsed time counting. From 100th seconds to 999ꢀ999 hours  
Two independent alarms  
Battery back-up circuit  
WatchDog timer  
Three timestamp registers  
Two independent interrupt generators plus predefined interrupts at every second,  
minute, or hour  
64 byte battery backed-up RAM  
Frequency adjustment via programmable offset register  
Clock operating voltage: 0.9 V to 5.5 V  
Low current; typical 0.28 μA at VDD = 3.0 V and Tamb = 25 °C  
400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)  
Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz,  
4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)  
Configurable oscillator circuit for a wide variety of quartzes: CL = 6 pF, CL = 7 pF, and  
CL = 12.5 pF  
3 Applications  
Elapsed time counter  
Network powered devices  
Printers and copiers  
Battery backed up systems  
Digital voice recorders  
1 The definition of the abbreviations and acronyms used in this data sheet can be found in Section 23.  
 
 
 

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