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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) 30 Page - NXP Semiconductors |
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PCF8545ATT датащи(HTML) 30 Page - NXP Semiconductors |
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30 / 54 page  PCA8576F All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 3 — 3 December 2014 30 of 54 NXP Semiconductors PCA8576F Automotive 40 × 4 LCD driver After an acknowledgement, one or more command bytes follow, that define the status of each addressed PCA8576F. The last command byte sent is identified by resetting its most significant bit, continuation bit C, (see Section 7.1). The command bytes are also acknowledged by all addressed PCA8576F on the bus. After the last command byte, one or more display data bytes may follow. Display data bytes are stored in the display RAM at the address specified by the data pointer and the subaddress counter. Both data pointer and subaddress counter are automatically updated and the data directed to the intended PCA8576F device. An acknowledgement after each byte is asserted only by the PCA8576Fs that are addressed via address lines A0 and A1. After the last display byte, the I2C-bus master asserts a STOP condition (P). Alternately a START may be asserted to restart an I2C-bus access. Fig 24. I2C-bus protocol |
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