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M41T00S 数据表(PDF) 13 Page - STMicroelectronics |
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M41T00S 数据表(HTML) 13 Page - STMicroelectronics |
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13 / 25 page ![]() M41T00 Device operation 13/25 Table 4. RTC power down/up trip points dc characteristics Symbol Parameter(1)(2) 1. Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 2.0 to 5.5 V (except where otherwise noted). 2. All voltages referenced to VSS. Min Typ Max(3) 3. In 3.3 V application, if initial battery voltage is > 3.4 V, it may be necessary to reduce battery voltage (i.e., through wave soldering the battery) in order to avoid inadvertent switchover/deselection for VCC -10 % operation. Unit VSO (4) 4. Switchover and deselect point. Backup switchover voltage VBAT -0.80 VBAT -0.50 VBAT -0.30 V |
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