Datasheet > PCF85263AUK

PCF85263AUK

更新时间： 2024-09-22 17:32:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
100页	781K
描述
Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bu...

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PCF85263AUK 数据手册

PCF85263A

Tiny Real-Time Clock/calendar with alarm function, battery

switch-over, time stamp input, and I²C-bus

Rev. 4.1 — 27 November 2015

Product data sheet

1. General description

The PCF85263A is a CMOS¹Real-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.

For a selection of NXP Real-Time Clocks, see Table 72 on page 90

2. Features and benefits

 UL Recognized Component (PCF85263ATL)

 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 999999 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

 Frequency adjustment via programmable offset register

 Clock operating voltage: 0.9 V to 5.5 V

 Low current; typical 0.28 A at V_DD= 3.0 V and T_amb= 25 C

 400 kHz two-line I²C-bus interface (at V_DD= 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: C_L= 6 pF, C_L= 7 pF, and

C_L= 12.5 pF

3. Applications

 Printers and copiers

 Electronic metering

 Digital cameras

1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 24.

12 3 4 5 6 7...100

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