PT7C43390 Datasheet, PDF (29/38 Pages) Pericom Semiconductor Corporation – Real-time Clock Module

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PT7C43390/43390C
Real-time Clock Module
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Example of Data Reading 2 (3-Byte Data Register)
 Data writing in the PT7C43390
After detecting a start condition, the PT7C43390 receives device code and command. The PT7C43390 enters the write-data mode
by the read / write bit "0". Input data from B7 to B0 in 1-byte. The PT7C43390 outputs an acknowledgment signal "L" every
moment that 1-byte data is input. After receiving the acknowledgment signal which is for the last byte-data, input a stop condition
to the PT7C43390 to finish access.
Example of Data Writing 1 (1-Byte Data Register)
Example of Data Reading 2 (3-Byte Data Register)
2015-12-0001
PT0280-8 12/11/15
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