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参数资料
| 型号： | DS1486-120 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, DIP32 |
| 封装： | 0.740 INCH, EDIP-32 |
| 文件页数： | 12/14页 |
| 文件大小： | 425K |
| 代理商： | DS1486-120 |
DS1486/DS1486P
7 of 14
WATCHDOG ALARM REGISTERS
Registers C and D contain the time for the Watchdog Alarm. The two registers contain a time count from
00.01 to 99.99 seconds in BCD. The value written into the Watchdog Alarm Registers can be written or
read in any order. Any access to Register C or D will cause the Watchdog Alarm to reinitialize and clears
the Watchdog Flag bit and the Watchdog Interrupt Output. When a new value is entered or the Watchdog
Registers are read, the Watchdog Timer will start counting down from the entered value to 0. When 0 is
reached, the Watchdog Interrupt Output will go to the active state. The Watchdog Timer Countdown is
interrupted and reinitialized back to the entered value every time either of the registers is accessed. In this
manner, controlled periodic accesses to the Watchdog Timer can prevent the Watchdog Alarm from
going to an active level. If access does not occur, countdown alarm will be repetitive. The Watchdog
Alarm Registers always read the entered value. The actual countdown register is internal and is not
readable. Writing registers C and D to 0 will disable the Watchdog Alarm feature.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1486P-120 | 1 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1500WEN | 1 TIMER(S), REAL TIME CLOCK, PDSO32 |
| DS1500WE | REAL TIME CLOCK, PDSO32 |
| DS1500W | REAL TIME CLOCK, PDIP32 |
| DS1500WN | REAL TIME CLOCK, PDIP32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1486-120+ | 功能描述:实时时钟 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 |
| DS1486-150 | 制造商:Maxim Integrated Products 功能描述:Real Time Clock, Non-Volatile, 32 Pin, Plastic, DIP |
| DS1486P | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:RAMified Watchdog Timekeeper |
| DS1486P-120 | 功能描述:实时时钟 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 |
| DS1486P-120+ | 功能描述:实时时钟 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 |
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