Datasheet

Clock operation M41T82, M41T83
30/64 DocID012578 Rev 16
Table 6. Digital calibration values
Calibration value (binary) Calibration value rounded to the nearest ppm
DC4 – DC0
Negative calibration (DCS = 0)
to slow a fast clock
Positive calibration (DCS = 1)
to speed up a slow clock
0 (00000) 0 0
1 (00001) –2 4
2 (00010) –4 8
3 (00011) –6 12
4 (00100) –8 16
5 (00101) –10 20
6 (00110) –12 24
7 (00111) –14 28
8 (01000) –16 33
9 (01001) –18 37
10 (01010) –20 41
11 (01011) –22 45
12 (01100) –24 49
13 (01101) –26 53
14 (01110) –28 57
15 (01111) –31 61
16 (10000) –33 65
17 (10001) –35 69
18 (10010) –37 73
19 (10011) –39 77
20 (10100) –41 81
21 (10101) –43 85
22 (10110) –45 90
23 (10111) –47 94
24 (11000) –49 98
25 (11001) –51 102
26 (11010) –53 106
27 (11011) –55 110
28 (11100) –57 114
29 (11101) –59 118
30 (11110) –61 122
31 (11111) –63 126
N N/491520 (per minute) N/245760 (per minute)