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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCA9641PW датащи(PDF) 35 Page - NXP Semiconductors |
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PCA9641PW датащи(HTML) 35 Page - NXP Semiconductors |
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35 / 55 page  PCA9641 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 2.1 — 27 October 2015 35 of 55 NXP Semiconductors PCA9641 2-channel I2C-bus master arbiter 16.3 Masters with shared resources Some masters may not be multi-master capable or some masters may not work well together and continually lock up the bus. The PCA9641 can be used to separate the masters, as shown in Figure 24, but still allow shared access to slave devices, such as Field Replaceable Unit (FRU) EEPROMs or temperature sensors. Fig 23. Very high reliability backplane application 002aag821 SCL1 SDA1 SCL0 SDA0 SCL0 SDA0 SCL0 SDA0 SCL0 SDA0 SCL1 SDA1 SCL1 SDA1 SCL1 SDA1 Fig 24. Masters with shared resources application 002aag822 PCA9641 SLAVE A0 SLAVE A1 SLAVE A2 MASTER A PCA9641 SLAVE B0 SLAVE B1 SLAVE B2 MASTER B ASSEMBLY A ASSEMBLY B SDA/SCL SDA/SCL MAIN MASTER |
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