WMSIC Electronic Components

RX8900CE:UB3 RX8900CE

ModelRX8900CE:UB3
Package10-SMD
BrandEPSON
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 26+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
EPSON RX8900CE: UB3
Type
EPSON
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
EPSON
Electronic Component
RX8900CE:UB3
Electronic Component
1
Package
10-SMD
Electronic Component
Real-Time Clock (RTC)
Electronic Component
0.001g
Electronic Component
1
Features
Gate; Power Management and Battery; Built-in Crystal Oscillator;; Output; Programmable Clock Output
Electronic Component
BM0265670576
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~5.5V
Interface Type
I2C
Electronic Component
Electronic Component
Electronic Component
2000

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

RX8900CE:UB3实时时钟(RTC)产品概述

RX8900CE:UB3是爱普生(EPSON)推出的一款高精度、超低功耗I2C接口实时时钟(RTC),专为对功耗、空间和可靠性要求严苛的电子设备设计。依托爱普生在晶振与计时技术领域的长期积累,该产品实现了低功耗与高稳定性的平衡,成为物联网、穿戴设备、工业监测等场景的理想时间管理解决方案。

一、核心定位与品牌背景

爱普生作为全球领先的计时元件供应商,其RTC产品以高精度、低功耗、高可靠性为核心竞争力。RX8900CE:UB3定位于小型化、电池供电的嵌入式系统,解决了传统RTC在功耗、封装或温宽上的痛点,尤其适合需要长期续航、紧凑设计的应用场景。

二、关键性能参数深度解析

1. 超低静态功耗(0.7uA)

静态电流仅0.7μA(典型值),是同类产品中的领先水平。以常用的CR2032纽扣电池(容量约200mAh)为例,理论续航可达约32年(200mAh ÷ 0.7μA = 285714小时 ≈ 32.6年),无需频繁更换电池,大幅降低设备维护成本。

2. 宽电压与温宽兼容

  • 工作电压:1.6V ~ 5.5V,覆盖主流MCU(如STM32L系列、Arduino等)的供电范围,无需额外电平转换电路,简化系统设计;
  • 工作温度:-40℃ ~ +85℃,符合工业级温宽标准,可稳定工作于户外、车间等极端环境(如冬季低温或夏季高温场景)。

3. 内置晶振与完整计时功能

  • 内置晶振:无需外接晶体或谐振器,减少BOM成本(约节省2~3个元件),同时避免外接晶振的匹配调试问题,提升设计效率;
  • 时钟日历功能:支持年(2000~2099)、月、日、时、分、秒计时,自动识别闰年与大小月,无需手动调整;
  • 闹钟输出:集成可编程闹钟功能,可输出中断信号唤醒MCU,满足定时采集、定时报警等需求。

三、接口与封装特性

1. 标准I2C接口

采用I2C串行接口,支持100kHz/400kHz通信速率,兼容主流嵌入式系统的I2C总线,便于与MCU快速集成。地址可通过硬件引脚配置(部分型号支持),避免地址冲突。

2. 小型化10-SMD无引线封装

封装规格为10-SMD(无引线表面贴装),尺寸约2.0mm × 2.5mm × 0.8mm,体积紧凑,适合穿戴设备、物联网节点等对PCB空间要求严格的场景,可显著缩小产品尺寸。

四、典型应用场景

RX8900CE:UB3的特性使其适配多类电子设备:

  1. 低功耗物联网(IoT)节点:如环境监测传感器、智能门锁、智能电表等,长期部署无需频繁换电池;
  2. 穿戴式电子设备:智能手环、智能手表、健康监测设备,小封装+低功耗保证续航与便携性;
  3. 工业控制与监测:户外温湿度传感器、工业自动化终端,宽温宽适应 harsh 环境;
  4. 智能家居终端:智能插座、灯光控制器、安防摄像头,定时功能支持场景化控制;
  5. 便携式医疗设备:血糖监测仪、心率带,低功耗确保长续航,宽电压兼容不同充电模式。

五、优势与差异化亮点

  1. 续航优势:0.7μA静态电流远超同类产品(部分竞品静态电流≥1μA),电池续航提升30%以上;
  2. 设计简化:内置晶振减少外接元件,降低PCB布局复杂度,缩短开发周期;
  3. 可靠性高:爱普生自研晶振技术保证时间精度(25℃时±5ppm),温漂小,长期计时稳定;
  4. 兼容性强:宽电压覆盖1.6V~5.5V,适配低功耗MCU与传统5V系统,无需电平转换;
  5. 功能实用:集成闹钟输出,满足定时唤醒需求,无需额外添加定时电路。

总结

RX8900CE:UB3是一款平衡低功耗、高集成度与可靠性的实时时钟产品,凭借爱普生的技术优势,解决了嵌入式系统中时间管理的核心痛点。无论是需要长期续航的IoT节点,还是紧凑设计的穿戴设备,该产品均能提供稳定、高效的计时解决方案,是工程师设计低功耗嵌入式产品的优选RTC之一。

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