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| IR21844资料 | |
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IR21844 PDF Download |
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File Size : 116 KB
Manufacturer:IR Description:A watchdog timer is a simple countdown timer which is used to reset a microprocessor after a specific interval of time. In a properly operating system, software will periodically "pet" or restart the watchdog timer. After being restarted, the watchdog will begin timing another predetermined interval. When software or the device is not functioning correctly, software will not restart the watchdog timer before it times out. When the watchdog timer times out, it will cause a reset of the microcontroller. If the system software has been designed correctly and there has been no hardware failure, the reset will cause the system to operate properly again. The reset condition must be a "safe" state. For instance, it would not be wise to have the reset state of a magnetic stripe card reader enabling the write head. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：IR21844 厂 家：IR 封 装： 批 号：0449 数 量：1231 说 明：Bid Price |
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运 费： 所在地： 新旧程度： |
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| 联系人：刘先生，罗小姐， |
| 电 话：0086-755-83576094, |
| 手 机：0086-(0)13728684091 |
| QQ：2355773149,2355773142,61991728 |
| MSN：franlmk168@live.cn |
| 传 真：86-755-83576061 |
| EMail：sales@xgf-ic.com, kupan_ic@126.com |
| 公司地址： 深圳市龙岗区龙城街道龙翔大道9009号珠江广场A2栋11F |
