Datasheet > PCA21125T

PCA21125T

更新时间： 2024-11-09 11:57:27

品牌	Logo	应用领域
恩智浦 - NXP		时钟
页数	文件大小	规格书
42页	1471K
描述
SPI-bus Real-Time Clock and calendar

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PCA21125T 数据手册

PCA21125

SPI-bus Real-Time Clock and calendar

Rev. 01 — 16 November 2009

Product data sheet

1. General description

The PCA21125 is a CMOS¹Real-Time Clock (RTC) and calendar optimized for low-power

consumption and an operating temperature up to 125 °C. Data is transferred via a Serial

Peripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer

functions are also available with the possibility to generate a wake-up signal on the

interrupt pin.

AEC Q100 compliant for automotive applications.

2. Features

Provides year, month, day, weekday, hours, minutes, and seconds based on

32.768 kHz quartz crystal

Resolution: seconds to years

Clock operating voltage: 1.3 V to 5.5 V

Low backup current: typical 0.55 μA at V_DD= 3.0 V and T_amb= 25 °C

3-line SPI-bus with separate, but combinable data input and output

Serial interface at V_DD= 1.6 V to 5.5 V

1 second or 1 minute interrupt output

Freely programmable timer with interrupt capability

Freely programmable alarm function with interrupt capability

Integrated oscillator capacitors

Internal Power-On Reset (POR)

Open-drain interrupt pin

3. Applications

Automotive time keeping

Metering

1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 17.

12 3 4 5 6 7...42

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