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  • 时钟芯片RX8025T

    RX-8801 SA Features built-in 32.768 kHz DTCXO, High Stability Supports l'C-Bus's high speed mode (400 kHz)Alarm interrupt function for day, date, hour, and minute settings Fixed-cycle timer interrupt function Time update interrupt function32.768 kHz output with OE function Auto correction of leap years wide interface voltage range: 2.2 V to 5.5 V wide time-keeping voltage range:1.8 V to 5.5 V Low current consumption: 0.84A/3V (Typ.)is an IC bus interface-compliant real-time clock which includes a 32.768 kHz DTCXO In addition to providing a calendar (year, month, date, day, hour, minute, second) function and a clock counter function, this module provides an abundance of other functions including an alarm function, fixed-cycle timer unction, time update interrupt function, and 32.768 kHz output function.The devices in this module are fabricated via a C-MOS process for low current consumption, which enables ong-term battery back-up.

    标签: 时钟芯片 rx8025t

    上传时间: 2022-06-17

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  • SHT30温湿度传感器模块 I2C通讯 数字型 宽电压 传感器

    Datasheet SHT3x-DISHumidity and Temperature Sensor Fully calibrated, linearized, and temperaturecompensated digital output wide supply voltage range, from 2.4 V to 5.5 V I2C Interface with communication speeds up to 1MHz and two user selectable addresses Typical accuracy of  2 %RH and  0.3 °C Very fast start-up and measurement time Tiny 8-Pin DFN package

    标签: sht30 温湿度传感器

    上传时间: 2022-06-29

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  • NB-IoT学习总结

    NB-IOT学习总结基于蜂窝的窄带物联网(Narrow Band Internet of Things,NB-loT)成为万物互联网络的一个重要分支。NB-loT构建于蜂窝网络,只消耗大约180KHz的带宽,可直接部署于GSM网络、UMTS网络或LTE网络,以降低部署成本、实现平滑升级。NB-loT是loT领域一个新兴的技术,支持低功耗设备在广域网的蜂窝数据连接,也被叫作低功耗广域网(LPWA)(Low Power wide Area,低功耗广域技术)。NB-loT支持待机时间长、对网络连接要求较高设备的高效连接。据说NB-loT设备电池寿命可以提高至至少10年,同时还能提供非常全面的室内蜂窝数据连接覆盖。一、NB-IOT架构NB-loT端到端系统框架的建议

    标签: NB-IoT

    上传时间: 2022-07-02

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