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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8545ATT датащи(PDF) 59 Page - NXP Semiconductors |
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PCF8545ATT датащи(HTML) 59 Page - NXP Semiconductors |
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59 / 103 page  PCA8530 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 2 — 25 September 2014 59 of 103 NXP Semiconductors PCA8530 Automotive 102 x 4 Chip-On-Glass LCD segment driver 9.2.5 I2C-bus controller The PCA8530 acts as an I2C-bus slave receiver. It does not initiate I2C-bus transfers. The only data output from PCA8530 is the acknowledge signals and the temperature readout byte of the selected device. 9.2.6 Input filters To enhance noise immunity in electrically adverse environments, RC low-pass filters are provided on the SDA and SCL lines. 9.2.7 I2C-bus slave address Device selection depends on the I2C-bus slave address. The least significant bit of the slave address byte is bit R/W (see Table 44). Bit 1 and bit 2 of the slave address are defined by connecting the inputs SA0 and SA1 to either VSS1 (logic 0) or VDD1 (logic 1). Therefore, four instances of PCA8530 can be distinguished on the same I2C-bus. Fig 36. Acknowledgement on the I2C-bus Table 43. I2C slave address byte Slave address Bit 7 MSB 6 5 4 3 2 1 0 LSB slave address 0 1 1 1 0 SA1 SA0 R/W Table 44. R/W-bit description R/W Description 0 write data 1 read data |
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