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参数资料
| 型号： | DS1632S+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/6页 |
| 文件大小： | 0K |
| 描述： | IC POWER FAIL W/RESET 16SOIC |
| 标准包装： | 1,000 |
| 应用： | PC 电源故障与复位控制器 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 500µA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
DS1632
power-up and via pushbutton input, power-fail status signals for the processor, and low battery warning
signals. The DS1632 is capable of detecting power failure at both the 5% and 10% power supply
tolerances, and the reset pulse width can be set for either 95 ms or 190 ms. The device is designed to
connect directly to popular laptop and notebook chip sets which eliminates the need for discrete
components and reduces cost.
BLOCK DIAGRAM Figure 1
OPERATION - CRYSTAL OSCILLATOR SECTION
The DS1632 crystal oscillator is designed to be hooked directly to a 32.768 kHz crystal. By using the
Daiwa Part No. DT26S, Seiko Part No. DS-VT-200 or equivalent, the oscillator will be accurate enough
to run a real time clock to within ±2 minutes per month. If another crystal is to be selected, it should have
a specified load capacitance (C L ) of 6 pF. The crystal oscillator will run as long as either V CC or V BAT is
present, providing that V BAT is greater than 2.3V. The oscillator output provides a rail to rail swing with
regards to V CC or V BAT , whichever is greater. The crystal oscillator is also used internally as a time base.
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