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| IDT74ALVCH373SO资料 | |
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IDT74ALVCH373SO PDF Download |
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File Size : 116 KB
Manufacturer:IDT Description:The default power up state of the mode register is unspecified. The following power up and initialization sequence need to be followed to guarantee the device being preconditioned to each user specific needs during power up, all VCC and VCCQ pins must be ramp up simultaneously to the specified voltage when the input signals are held in the "NOP" state. The power up voltage must not exceed VCC +0.3V on any of the input pins or VCC supplies. After power up, an initial pause of 200 µS is required followed by a precharge of all banks using the precharge command. To prevent data contention on the DQ bus during power up, it is required that the DQM and CKE pins be held high during the initial pause period. Once all banks have been precharged, the Mode Register Set Command must be issued to initialize the Mode Register. An additional eight Auto Refresh cycles (CBR) are also required before or after programming the Mode Register to ensure proper subsequent operation. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：IDT74ALVCH373SO 厂 家：IDT 封 装：SOP 批 号：00+ 数 量：2982 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, |
| QQ：172517499,137550090 |
| MSN：zfdz168@hotmail.com |
| 传 真：0755-82738881 |
| EMail：zfdz168@163.com |
| 公司地址： 深圳市福田区华强北路华强广场B座28楼L室 |
