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参数资料
| 型号： | DS1500YN |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Timer or RTC |
| 英文描述： | REAL TIME CLOCK, PDIP32 |
| 封装： | DIP-32 |
| 文件页数： | 24/25页 |
| 文件大小： | 214K |
| 代理商： | DS1500YN |
DS1500/DS1510
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IRQ AND FLAG WAVEFORMS ( CS RELATED) Figure 2c
WAKE UP/KICKSTART
The DS1500/DS1510 incorporates a wake up feature, which can power on at a pre-determined date
through activation of the PWR output pin. In addition, the kickstart feature can allow the system to be
powered up in response to a low going transition on the KS pin, without operating voltage applied to the
VCCI pin. As a result, system power may be applied upon such events as key closure, or a modem ring
detects signal. In order to use either the wake up or the kickstart features, the DS1500/DS1510 must have
an auxiliary battery connected to the VBAUX pin and the oscillator must be running.
The wake up feature is controlled through the Time of Day/Date Power Enable bit TPE. Setting TPE to
"1" enables the wake up feature. Writing TPE to a "0" disables the wake up feature. Similarly, the
kickstart feature is controlled through the Kickstart Interrupt Enable bit KIE.
If the wake up feature is enabled, while the system is powered down (no VCCI voltage), the clock/calendar
will monitor the current day or date for a match condition with day/date alarm register (0 Bh).
In
conjunction with the day/date alarm register, the hours, minutes, and seconds alarm bytes in the clock
calendar register map (02h, 01h, and 00h) are also monitored. As a result, a wake up will occur at the day
or date and time specified by the day/date, hours minutes, and seconds alarm register values. This
additional alarm will occur regardless of the programming of the TIE bit. When the match condition
occurs, the PWR pin will automatically be driven low. This output can be used to turn on the main system
power supply, which provides VCCI voltage to the DS1500/DS1510 as well as the other major components
in the system. Also, at this time, the Time of Day/Date alarm Flag will be set, indicating that a wake up
condition has occurred.
If the kickstart feature is enabled with the KSE bit and VBAUX is present, while VCCI is low, the KS input
pin will be monitored for a low going transition of minimum pulse width tKSPW. When such a transition is
detected, the PWR line will be pulled low, as it is for a wake up condition. Also at this time, the Kickstart
Flag KSF will be set, indicating that a kickstart condition has occurred. The KS input pin is always
enabled and must not be allowed to float.
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| DS1501WSN | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| DS1501YEN | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
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| DS1501_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Y2K-Compliant Watchdog Real-Time Clocks |
| DS1501-7R | 功能描述:EURO-CASSETTE 100W 15V RoHS:否 类别:电源 - 外部/内部（非板载） >> DC DC Converters 系列:* 标准包装:1 系列:Quint 类型:隔离 输入电压:24V 输出:24V 输出数:1 输出 - 1 @ 电流（最大）:24 VDC @ 50A 输出 - 2 @ 电流（最大）:- 输出 - 3 @ 电流（最大）:- 输出 - 4 @ 电流（最大）:- 功率（瓦特）:1200W 安装类型:底座安装 工作温度:0°C ~ 40°C 效率:- 封装/外壳:模块 尺寸/尺寸:4.33" L x 9.09" W x 6.14" H（110mm x 231mm x 156mm） 包装:散装 电源（瓦特）- 最大:1200W 批准:- 其它名称:277-69722866365-NDQUINT-BAT/24DC/12AH |
| DS1501-DS1511 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Y2K-Compliant Watchdog Real-Time Clocks |
| DS1501W | 功能描述:IC RTC WDOG Y2KC 3.3V 28-DIP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
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