RV-8564 Datasheet, PDF (3/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8564
9.3. SETTING AND READING THE TIME ...................................................................................................... 18
9.4. ALARM FLAG .......................................................................................................................................... 20
9.5. STOP BIT FUNCTION.............................................................................................................................. 21
9.5.1. FIRST INCREMENT OF TIME CIRCUITS AFTER STOP BIT RELEASE........................................ 22
9.6. RESET ...................................................................................................................................................... 22
10.CHARACTERISTICS OF THE I²C BUS .......................................................................................................... 23
10.1. BIT TRANSFER ....................................................................................................................................... 23
10.2. START AND STOP CONDITIONS .......................................................................................................... 23
10.3. SYSTEM CONFIGURATION.................................................................................................................... 24
10.4. ACKNOWLEDGE ..................................................................................................................................... 25
11.I²C BUS PROTOCOL ....................................................................................................................................... 26
11.1. ADDRESSING .......................................................................................................................................... 26
11.2. CLOCK AND CALENDAR READ AND WRITE CYCLES ...................................................................... 26
11.2.1. WRITE MODE ................................................................................................................................... 26
11.2.2. READ MODE AT SPECIFIC ADDRESS........................................................................................... 27
11.2.3. READ MODE..................................................................................................................................... 27
11.3. INTERFACE WATCHDOG TIMER .......................................................................................................... 28
12.ABSOLUTE MAXIMUM RATING .................................................................................................................... 28
13.FREQUENCY CHARACTERISTICS................................................................................................................ 29
13.1. FREQUENCY VS. TEMPERATURE CHARACTERISTICS .................................................................... 29
14.DC CHARACTERISTICS ................................................................................................................................. 30
15.I²C BUS TIMING CHARACTERISTICS ........................................................................................................... 31
15.1. TIMING CHART........................................................................................................................................ 31
16.RECOMMENDED REFLOW TEMPERATURE (LEADFREE SOLDERING) .................................................. 32
17.PACKAGES ..................................................................................................................................................... 33
17.1. DIMENSIONS AND SOLDERPADS LAYOUT ........................................................................................ 33
17.2. MARKING AND PIN #1 INDEX................................................................................................................ 34
18.PACKING INFORAMTION............................................................................................................................... 35
18.1. CARRIER TAPE ....................................................................................................................................... 35
18.2. PARTS PER REEL................................................................................................................................... 36
18.3. REEL 13 INCH FOR 12 mm TAPE.......................................................................................................... 37
18.4. REEL 7 INCH FOR 12 mm TAPE............................................................................................................ 38
19.HANDLING PRECAUTIONS FOR CRYSTALS OR MODULES WITH EMBEDDED CRYSTALS ................ 39
20.DOCUMENT REVISION HISTORY.................................................................................................................. 40
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