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| L7812CV资料 | |
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L7812CV PDF Download |
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File Size : 116 KB
Manufacturer:ST Description:BUS OPERATIONS There are five standard bus operations that control the device. These are Bus Read, Bus Write, Out- put Disable, Standby and Automatic Standby. See Tables 4A and 4B, Bus Operations, for a summa- ry. Typically glitches of less than 5ns on Chip En- able or Write Enable are ignored by the memory and do not affect bus operations. Bus Read. Bus Read operations read from the memory cells, or specific registers in the Com- mand Interface. A valid Bus Read operation in- volves setting the desired address on the Address Inputs, applying a Low signal, VIL, to Chip Enable and Output Enable and keeping Write Enable High, VIH. The Data Inputs/Outputs will output the value, see Figure 7, Read Mode AC Waveforms, and Table 11, Read AC Characteristics, for details of when the output becomes valid. Bus Write. Bus Write operations write to the Command Interface. A valid Bus Write operation begins by setting the desired address on the Ad- |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：L7812CV 厂 家：ST 封 装：T0-220 批 号：09+ 数 量：12000 说 明：绝对全新原装大量现货，质量保证，欢迎来电查询 |
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运 费： 所在地： 新旧程度： |
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| 联系人：李利媛 |
| 电 话：0755/83019596,83247541,83247486 |
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| 公司地址： 广东省深圳市福田区振兴西路新欣大厦B座518室 |
