WMSIC Electronic Components

GATEMODE MC8722

ModelMC8722
PackageSOP-8
BrandGATEMODE
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GATEMODE MC8722
Type
GATEMODE
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GATEMODE
Electronic Component
MC8722
Electronic Component
1
Package
SOP-8
Electronic Component
Other Interface
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0264382362
Operating Temperature
40℃~+85℃
Operating Voltage
3.3V
Operating Current
20mA
Data
9.6Kbps
Static Current
1.3mA;1.8mA;1mA
Electronic Component
Electronic Component
Electronic Component
2500

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

MC8722 产品概述

一、产品简介

MC8722 是捷茂微(GATEMODE)面向 M-Bus 标准(EN1434-3)应用开发的一款单芯片收发器。芯片支持总线供电模式,由主站通过 M-Bus 总线为终端供电,无须外接独立电源,适合水表、燃气表、热量表等抄表终端设备。封装为 SOP-8,工作电压为 3.3V,工作温度范围为 -40℃ 至 +85℃。

二、主要性能参数

  • 数据速率:9.6Kbps(符合 M-Bus 常用数据率)
  • 工作电压:3.3V
  • 工作电流:典型 20mA(工作状态)
  • 静态电流:多种低功耗等级(典型值 1.3mA、1.8mA、1.0mA,视不同待机模式而定)
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOP-8
  • 标准兼容:EN1434-3(M-Bus)

三、核心功能亮点

  • 总线供电:芯片可直接从 M-Bus 总线获取工作电源,简化终端电源设计,降低物料成本。
  • 动态电平识别:接收端内置动态电平识别电路,能根据总线长度和负载变化自动调整接收阈值,提高远端通信可靠性。
  • 集成稳压源:内置 5V 与 3.3V 直流稳压器,可为终端传感器或 MCU 提供电源输出,便于系统集成。
  • 低功耗设计:提供多档静态电流等级,可在不同待机策略下优化能耗,满足电池或总线供电的功率预算。

四、典型应用场景

  • 智能水表、燃气表、电表终端(远程抄表)
  • 供热计量设备、热量表分支终端
  • 其他基于 M-Bus 的传感与数据采集节点

五、设计与使用建议

  • 电源与稳压:建议在芯片稳压输出端添加合适的去耦电容(如 10µF 与 0.1µF 并联)以保证稳压稳定性与瞬态响应。
  • 总线布线:M-Bus 为长线通信,总线阻抗匹配和终端电阻选型对信号完整性非常重要;接收端动态识别虽能补偿一定幅度变化,但仍建议保持良好线缆走线与接地。
  • ESD 与浪涌防护:在户外或工业环境应用时,增加 TVS 二极管与串联保护元件,防止雷击或浪涌损坏。
  • PCB 布局:数字引脚与模拟/总线引脚合理分区,短化敏感信号走线,保持稳压器散热通道,确保可靠工作。
  • 功耗规划:根据终端供电能力选择合适的静态模式,评估主站供电能力与多节点并联时的电流分配。

六、优势总结

MC8722 以其总线供电、动态电平识别和集成稳压功能,显著简化了 M-Bus 终端的硬件设计并提高系统可靠性。SOP-8 小封装和宽温运行能力使其适配多种工业与民用抄表场景,是实现低成本、低功耗 M-Bus 终端的理想选择。若需深入电气特性、引脚定义或参考电路,建议参考捷茂微(GATEMODE)提供的详细数据手册和应用笔记。

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