WMSIC Electronic Components

PCF85063AT/AY PCF85063AT

ModelPCF85063AT/AY
PackageSO-8
BrandNXP
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
NXP PCF85063AT / AY
Type
NXP
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
PCF85063AT/AY
Electronic Component
1
Package
SO-8
Electronic Component
Real-Time Clock (RTC)
Electronic Component
0.188g
Electronic Component
1
Features
Programmable Clock Output; Output
Electronic Component
BM0232337240
Operating Temperature
40℃~+85℃
Operating Voltage
900mV~5.5V
Operating Current
220nA
Interface Type
I2C
Crystal Oscillator Type
Built-in
Output
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

PCF85063AT/AY — 低功耗 I2C 实时时钟(RTC)产品概述

一、产品简介

PCF85063AT/AY 是恩智浦(NXP)家族中的低功耗实时时钟(RTC)芯片,采用标准 I²C(两线)总线通信,适用于需要长时间电池供电并保持精确时钟与日历信息的场合。器件集成了时钟/日历功能、闹钟输出以及超低静态电流特性,封装为 8 引脚 SO-8(0.154" / 3.90 mm 宽),工作温度范围宽(-40℃ ~ +85℃),便于在消费类和工业环境中应用。

二、主要特性

  • 接口类型:I²C 两线串行接口,便于与微控制器连接与读取时间数据。
  • 供电电压:宽电压范围 0.9 V ~ 5.5 V,适配多种系统电源与电池方案。
  • 工作/静态电流:极低静态电流 Iq ≈ 0.22 μA(220 nA),有助于延长电池寿命。
  • 晶振:内置晶振(以减少外部元件需求),提供稳定的时基来源。
  • 闹钟输出:提供闹钟/唤醒输出,可用于中断微控制器或唤醒系统。
  • 时钟与日历:支持常用的时/分/秒、日/月/年与闰年处理(具体寄存器与功能详见数据手册)。
  • 环境与封装:工作温度 -40℃ 到 +85℃,封装 SO-8,工艺可靠性满足大多数商用/工业应用要求。

三、典型应用场景

  • 电池供电的便携设备与手持终端(需要长时间保存时间信息)。
  • 物联网节点、传感器模块的数据时间戳与睡眠唤醒控制。
  • 工业控制与监控设备的时间记录与定时唤醒。
  • 消费电子产品(家用电器、时钟模块、计费/记录设备等)。

四、设计与使用要点

  • 电源与退化:利用 0.9 V 起的低电压特性,可直接驱动一些低压微控制器或通过备用电池供电;设计时应考虑电源切换与电池备份路径以保证掉电时仍能保持时间。
  • 去耦与滤波:在 VCC 和 GND 之间放置适当的去耦电容(例如 0.1 μF)以抑制噪声,保证时基稳定。
  • I²C 总线:在 SDA、SCL 线上使用合适阻值的上拉电阻(按系统总线速率与电源电压选择)并考虑总线仲裁与地址冲突问题;具体寄存器与地址请参阅器件数据手册。
  • 闹钟输出:闹钟/唤醒引脚常用于外部中断,驱动能力与输出类型(推挽/开漏)依数据手册而定,必要时在外部加上滤波或限流保护电路。
  • 校准与精度:尽管内置晶振可简化设计,但在对时间精度有严格要求的场合,仍建议参考数据手册的温度特性与校准方法,并在系统层面进行必要的校正或周期性同步。

五、封装与型号提示

  • 封装形式为 SO-8(0.154" / 3.90 mm 宽),适合常见的表面贴装工艺(SMT)。
  • 型号后缀(T / AY 等)通常关联封装、包装方式或无铅/环保版本,选型时请以恩智浦官方数据手册与型号说明为准。

六、选型与替代

如需更详细的寄存器映射、I²C 地址、时钟精度、唤醒/闹钟配置与典型应用电路,请务必参考 PCF85063AT/AY 的官方数据手册。若需兼容替代件,可考虑恩智浦或其他厂商的同类低功耗 RTC 器件,但请核对寄存器映射、电气特性与封装以保证软件与硬件的可移植性。

更多技术细节与典型应用建议,请查阅官方数据手册和参考设计文档,以确保在具体应用中达到最佳的低功耗与时间保持性能。

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