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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RF63W датащи(PDF) 72 Page - HOPE Microelectronics CO., Ltd. |
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RF63W датащи(HTML) 72 Page - HOPE Microelectronics CO., Ltd. |
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72 / 91 page  ADVANCED COMMUNICATIONS & SENSING Page 72 of 91 RF63 Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com Undefined Wait for 10 ms Chip is ready from this point on 5 ms this point on High-Z 7.4. Reset of the Chip A power-on reset of the RF63 is triggered at power up. Additionally, a manual reset can be issued by controlling pin 13. 7.4.1. POR If the application requires the disconnection of VDD from the RF63, despite of the extremely low Sleep Mode current, the user should wait for 10 ms from of the end of the POR cycle before commencing communications over the SPI bus. Pin 13 (TEST8) should be left floating during the POR sequence. VDD Pin 13 (output) Figure 54: POR Timing Diagram Please note that any CLKOUT activity can also be used to detect that the chip is ready. 7.4.2. Manual Reset A manual reset of the RF63 is possible even for applications in which VDD cannot be physically disconnected. Pin 13 should be pulled high for a hundred microseconds, and then released. The user should then wait for 5 ms before using the chip. VDD Pin 13 High-Z > 100 us ‟‟1‟‟ Wait for Chip is ready from (input) Figure 55: Manual Reset Timing Diagram Please note that while pin 13 is driven high, an over current consumption of up to ten milliamps can be seen on VDD. |
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