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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
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SGM708-MYS8G/TR 为圣邦微(SGMICRO)推出的一款单路电压监控(电压监控器 / 复位IC),适用于对单一电源轨进行可靠复位与看护。主要参数如下:
SGM708 在供电轨电压下降到低于阈值(4.4 V,典型值)时,立即产生复位信号以保证系统进入确定状态;当电压回升并稳定超过阈值后,器件会在内部计时(200 ms)后释放复位信号,保证系统电源稳定后再启动。手动复位(MR)输入可用于外部按键或微控制器触发:将 MR 拉至触发电平时,器件强制输出复位并在释放后维持内部规定的复位时间,避免接触抖动导致的错误复位。
输出方面,开漏型输出便于与多片器件共用复位线(需外部上拉电阻);推挽型输出则可直接驱动后级逻辑,无需外部上拉。根据系统需要可选低电平有效或高电平有效版本。
SGM708-MYS8G/TR 提供 SOIC-8 封装,便于标准 PCB 组装与散热管理。典型引脚包括电源(VCC)、地(GND)、复位输出(RESET/RESET#)、手动复位(MR)等。开漏输出版本的 RESET 需通过外部上拉电阻接到 VCC;推挽版本则直接驱动输出到高/低电平。
(具体引脚排列与电气参数请参见厂商数据手册以获得精确脚位图与绝对最大额定值。)
SGM708 系列以简单可靠的单路电压监控与 200 ms 的复位保持时间著称,适合需在供电恢复后给出足够上电延时的嵌入式系统。选型时确认:监控阈值(本型号典型 4.4 V)是否匹配系统电源等级;输出类型(开漏或推挽)与复位极性(低有效或高有效)与系统逻辑电平兼容;并核对工作温度与封装形式。更多电气特性、时序图与典型应用电路,请参考 SGMICRO 官方数据手册与评估资料。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
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The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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