Datasheet > 微控制器和处理器 > 计时器或实时时钟> PCF8523T

PCF8523T

更新时间： 2024-09-21 10:16:47

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
2页	293K
描述
Save power with small, ultra-efficient RTCs

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技术参数
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PCF8523T 技术参数

生命周期：	Active	包装说明：	SOP,
Reach Compliance Code：	unknown	风险等级：	5.65
信息访问方法：	I2C	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	端子数量：	8
计时器数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	座面最大高度：	1.75 mm
最大供电电压：	5.5 V	最小供电电压：	1.2 V
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	3.9 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

PCF8523T 数据手册

NXP ultra-low-power

RTC/calendars PCF8523

& PCF2123

Save power with small,

ultra-efﬁcient RTCs

Designed to perform critical time-keeping functions in a range of applications, these small, highly

efﬁcient RTC/calendars ﬁt nearly anywhere and cut power demands by as much as 60 percent.

Key features

Key applications

} 32.768 kHz quartz crystal

} Resolution: seconds to years

} Time-keeping functions

} Battery-powered devices

} Freely programmable timer and alarm function with interrupt } Metering

} Low backup current: 100 nA typ at V_DD= 2.0 V

and Tamb = 25 °C

} High-duration timers

} Daily alarms

} Internal Power-On Reset

} Systems with low standby power

} Open drain interrupt and clock output pins

} Programmable offset register for frequency adjustment

} Watchdog timer

The NXP PCF8523 and PCF2123 are CMOS devices that

combine a real-time clock (RTC) and a calendar. Optimized for

low power consumption, they operate at a current of less than

100 nA with a 2.0 V power supply, and consume less than 0.2μW

of power. The PCF8523 uses an I²C-bus serial interface while the

PCF2123 is equipped with an SPI serial interface.

Ultra-low-power I²C RTC/calendar PCF8523

} Clock operating voltage: 1.2 V to 5.5 V

} 2 line bi-directional 1 MHz Fast-mode Plus I²C interface

} Battery backup input pin and switch-over circuitry

} Integrated oscillator load capacitors for C_L= 7 and 12.5 pF

} Second countdown timer with interrupt output

Both devices are cased in tiny leadless packages that save

space in compact designs. This makes them well suited for

handheld and battery-operated applications, including blood-

pressure monitors and other home-use medical devices, pocket

calculators, portable phones, and PDAs. They are also an

excellent choice for white goods, such as washing machines,

metering units, and other industrial systems. Both devices can

Ultra-low-power SPI RTC/calendar PCF2123

} Clock operating voltage: 1.1 to 5.5 V

} 3-line SPI with separate, combinable data I/O

} Serial interface (at V_DD= 1.6 to 5.5 V)

} Free programmable timer and alarm with interrupt capability be powered by a very small battery cell or a super-cap.

} Integrated oscillator load capacitors for C_L= 7 pF

中文翻译

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与PCF8523T相关器件

型号	品牌	获取价格	描述	数据表
PCF8523T/1	NXP	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO8, 3.90 MM HEIGHT, PLASTIC, DSO-8
PCF8523T/1,118	NXP	获取价格	PCF8523 - Real-Time Clock (RTC) and calendar SOIC 8-Pin
PCF8523T-1	NXP	获取价格	Real-Time Clock (RTC) and calendar
PCF8523TK	NXP	获取价格	Save power with small, ultra-efficient RTCs
PCF8523TK/1	NXP	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO8, 4 X 4 MM, 0.85 MM HEIGHT, PLASTIC, HVSON-8
PCF8523TK/1,118	NXP	获取价格	PCF8523 - Real-Time Clock (RTC) and calendar SON 8-Pin
PCF8523TK-1	NXP	获取价格	Real-Time Clock (RTC) and calendar
PCF8523TS	NXP	获取价格	Save power with small, ultra-efficient RTCs
PCF8523TS/1	NXP	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO14, 4.40 MM HEIGHT, PLASTIC, TSSOP-14
PCF8523TS-1	NXP	获取价格	Real-Time Clock (RTC) and calendar

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