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| HD74LS157P资料 | |
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HD74LS157P PDF Download |
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File Size : 116 KB
Manufacturer:HITACHI Description:The circuit described uses a low-power CMOS comparator to provide an LED visual indication of a low-battery condition, without excessive battery current drain. This is achieved by pulsing the LED at a low frequency and low duty cycle and conserving battery current in the OFF cycle by placing the comparator in shutdown. Equations and circuit analysis are included for determining duty cycle and comparator trip points. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：HD74LS157P 厂 家：HITACHI 封 装： 批 号：4H3T 数 量：1394 说 明：全新原装正品,优势库存热卖中! |
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运 费： 所在地： 新旧程度： |
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| 联系人：林小姐 |
| 电 话：086-755-23815997 |
| 手 机：13632589437 |
| QQ：1097182423,2851921558 |
| MSN： |
| 传 真：0755-23815984 |
| EMail：joylin@hongbotong.com |
| 公司地址： 深圳市福田区深南中路3006号佳和大厦B座2007室 |
