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HT48R52A Datasheet(PDF) 5 Page - Holtek Semiconductor Inc |
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HT48R52A Datasheet(HTML) 5 Page - Holtek Semiconductor Inc |
5 / 36 page HT48R52A Rev. 1.70 5 2014-04-03 交流电气特性 Ta=25℃ 符号 参数 测试条件 最小 典型 最大 单位 VDD 条件 fSYS 系统时钟 ( RC 振荡) - 2.2V~5.5V 400 - 4000 kHz - 3.3V~5.5V 400 - 8000 fTIMER 定时器的输入频率 - 2.2V~5.5V 0 - 4000 kHz - 3.3V~5.5V 0 - 8000 tWDTOSC 看门狗振荡器周期 3V - 45 90 180 μ s 5V - 32 65 130 tFSP1 fSP 溢出周期 (时钟来源:WDT 振荡) 3V 预分频 ( fs/4096) 184 369 737 m s 5V 131 266 532 tFSP2 fSP 溢出周期 (时钟来源:RTC 振荡) 3V 预分频 ( fs/4096) - 125 - m s 5V - 125 - tRES 外部复位低电平脉冲宽度 - - 1 - - μ s tSST 系统启动延时周期 - 上电或从暂停 状态唤醒 - 1024 - tSYS tLVR 低电压复位 - - 0.25 1 2 m s tINT 中断脉冲宽度 - - 1 - - μ s 注: tSYS =1/ fSYS |
Similar Part No. - HT48R52A_14 |
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Similar Description - HT48R52A_14 |
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