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| BLM21A350SPT资料 | |
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BLM21A350SPT PDF Download |
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File Size : 116 KB
Manufacturer: Description:Notes: 1. Due to the Cypress implementation of USB suspend mode support, the NRESET pin of the ADNS-2001 must be reset using a line from the Cypress chip. The reason for this is that the Cypress chip does not configure the port input pins until after it has received a bus reset from the USB port. The unconfigured input port pins present a 16 KΩ pullup to VCC. If a cap is used on NRESET (pin 15), this pullup will result in the ADNS-2001 seeing a high on the MODE pin and powering up in the PS/2 mode. 2. The quadrature input pins of the Cypress part must be programmed to be Hi-Z, instead of the normal current pulldowns. This ensures that the ADNS-2001 will be able to pull the quadrature lines high over all conditions of voltage and temperature. 3. 0.1 µF between pins 7 and 8 must be ceramic, and must be trace lengths less than 5 mm. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：BLM21A350SPT 厂 家： 封 装：08＋ 批 号：20000 数 量： 说 明：原装现货 |
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