DS1305 Datasheet, PDF (18/22 Pages) Dallas Semiconductor – Serial Alarm Real Time Clock RTC

Figure 10. TIMING DIAGRAM: 3-WIRE READ DATA TRANSFER
DS1305
SERMODE = GND
* I/O IS SDI AND SDO TIED TOGETHER.
Figure 11. TIMING DIAGRAM: 3-WIRE WRITE DATA TRANSFER
SERMODE = GND
* I/O IS SDI AND SDO TIED TOGETHER.
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