21. Tables
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ETM50E-07 Seiko Epson Corporation 65
21. Tables
Table 1 Pin Description ................................................................................................................................. 7
Table 2 Absolute Maximum Rating ............................................................................................................. 10
Table 3 Recommended Operation Condition ............................................................................................. 10
Table 4 Frequency Characteristics ............................................................................................................. 10
Table 5 DC characteristics(1) .................................................................................................................... 11
Table 6 DC characteristics(2) .................................................................................................................... 12
Table 7 AC characteristics .......................................................................................................................... 13
Table 8 AC characteristics (FOUT)............................................................................................................. 13
Table 9 AC Characteristics (Reset) ............................................................................................................ 14
Table 10 Reset timing ................................................................................................................................. 14
Table 11 Power supply characteristics ....................................................................................................... 16
Table 12 Register Table.............................................................................................................................. 20
Table 13 Register initial value, Read/Write ................................................................................................ 21
Table 14 Time, calendar setting example (Sun, 29-Feb-88 17:39:45 (leap year) ................................... 24
Table 15 Setting example of the week register value................................................................................. 25
Table 16 Countdown period (source clock) selection................................................................................. 26
Table 17 Wakeup timer control ................................................................................................................... 27
Table 18 Wakeup timer interrupt detection flag .......................................................................................... 28
Table 19 Wakeup timer interrupt control .................................................................................................... 28
Table 20 Wakeup timer normal mode/backup mode control ...................................................................... 28
Table 21 Wakeup timer stop control ........................................................................................................... 28
Table 22 Wakeup timer interrupt cycles ..................................................................................................... 30
Table 23 WEEK/DAY control ...................................................................................................................... 33
Table 24 Alarm Flag .................................................................................................................................... 33
Table 25 Alarm Interrupt control ................................................................................................................. 33
Table 26 WEEK alarm example .................................................................................................................. 33
Table 27 DAY alarm example ..................................................................................................................... 34
Table 28 Second/Minute selection ............................................................................................................. 35
Table 29 Time update Flag ......................................................................................................................... 35
Table 30 Time update interrupt control ....................................................................................................... 35
Table 31 Oscillation stop detection flag ...................................................................................................... 37
Table 32 FOUT Frequency selection .......................................................................................................... 37
Table 33 Reference characteristics of switching elements. ..................................................................... 38
Table 34 CHGEN bit ................................................................................................................................... 40
Table 35 INIEN bit ....................................................................................................................................... 40
Table 36 Voltage detection timing .............................................................................................................. 43
Table 37 VDET3, VDET4 intermittent detection period .............................................................................. 43
Table 38 VDET1,VDET2,VDET3,VDET4 setting ....................................................................................... 45
Table 39 BFVSEL1, BFVSEL0 ................................................................................................................... 45