Datasheet > PCF25GA

PCF25GA

更新时间： 2024-01-08 15:20:32

品牌	Logo	应用领域
恩智浦 - NXP		时钟
页数	文件大小	规格书
63页	828K
描述
SPI Real time clock/calendar Time keeping application

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PCF25GA 技术参数

生命周期：	Active	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8536.10.00.40
风险等级：	5.55	其他特性：	RATED BREAKING CAPACITY AT 500 VDC: 100000 A
熔断特性：	FAST	主体高度：	10 mm
主体长度或直径：	38 mm	电路保护类型：	ELECTRIC FUSE
安装特点：	THROUGH HOLE	物理尺寸：	38mm x 10mm
额定分断能力：	100000 A	额定电流：	25 A
额定电压（交流）：	600 V	额定电压（直流）：	500 V
参考标准：	UL	表面贴装：	NO
端子形状：	PIN WIRE	Base Number Matches：	1

PCF2123

SPI Real time clock/calendar

Rev. 5 — 27 April 2011

Product data sheet

1. General description

The PCF2123 is a CMOS¹Real-Time Clock (RTC) and calendar optimized for low power

applications. Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a

maximum data rate of 6.25 Mbit/s. An alarm and timer function is also available providing

the possibility to generate a wake-up signal on an interrupt pin. An offset register allows

fine tuning of the clock.

2. Features and benefits

Real time clock provides year, month, day, weekday, hours, minutes, and seconds

based on a 32.768 kHz quartz crystal

Low backup current while running: typical 100 nA at V_DD= 2.0 V and T_amb= 25 °C

Resolution: seconds to years

Watchdog functionality

Freely programmable timer and alarm with interrupt capability

Clock operating voltage: 1.1 V to 5.5 V

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

Integrated oscillator load capacitors for C_L= 7 pF

Internal Power-On Reset (POR)

Open-drain interrupt and clock output pins

Programmable offset register for frequency adjustment

3. Applications

Time keeping application

Battery powered devices

Metering

High duration timers

Daily alarms

Low standby power applications

1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 21.

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