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| 74HCT257D资料 | |
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74HCT257D PDF Download |
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File Size : 116 KB
Manufacturer:PHI Description:In case of over- or undervoltage at Pin VS, an internal timer is started. When the under- voltage delay time (tdUV, tdOV) programmed by the SCT bit is reached, the power supply fail bit (PSF) in the output register is set and all outputs are disabled. When normal volt- age is present again, the outputs are enabled immediately. The PSF bit remains high until it is reset by the SRR bit in the input register. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：74HCT257D 厂 家：PHI 封 装：3.9mm 批 号：93+ 数 量：594 说 明： |
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运 费：广东省内10元(平邮),广东省外20元(快递) 所在地：深圳市 新旧程度： |
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| 联系人：黄林锋 |
| 电 话：0755-82579969,83255343 |
| 手 机：13714599954, |
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| 公司地址： 深圳市福田区华强北路华强广场B座28楼L室 |
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