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参数资料
| 型号： | M41T83ZM6F |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8 |
| 文件页数： | 10/61页 |
| 文件大小： | 983K |
| 代理商： | M41T83ZM6F |
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Operation
M41T82-M41T83
Doc ID 12578 Rev 12
2.4
Data retention and battery switchover (VSO = VRST)
Once VCC falls below the switchover voltage (VSO = VRST), the device automatically
switches over to the battery and powers down into an ultra low current mode of operation to
preserve battery life. If VBAT is less than, or greater than VRST, the device power is switched
clock registers and user RAM will be maintained by the attached battery supply.
When it is powered back up, the device switches back from battery to VCC at VSO +
hysteresis. When VCC rises above VRST, it will recognize the inputs. For more information
on battery storage life refer to Application Note AN1012.
2.5
Power-on reset (trec)
The M41T8x continuously monitors VCC. When VCC falls to the power fail detect trip point,
the RST output pulls low (open drain) and remains low after power-up for trec (210 ms
typical) after VCC rises above VRST (max).
Note:
The trec period does not affect the RTC operation. Write protect only occurs when VCC is
below VRST. When VCC rises above VRST, the RTC will be selectable immediately. Only the
RST output is affected by the trec period.
The RST pin is an open drain output and an appropriate pull-up resistor to VCC should be
chosen to control the rise time.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M41T83ZMY6E | 功能描述:实时时钟 Serial I2C bus RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M41T83ZMY6F | 功能描述:实时时钟 Serial I2C bus RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M41T83ZQ6E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T83ZQ6F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T83ZQA6E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial I2C bus RTC with battery switchover |
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