Datasheet

List of tables
Table 1. Device summary ....................................................................2
Table 2. Signal names ......................................................................4
Table 3. M41T62 register map ................................................................ 13
Table 4. M41T64 register map ................................................................ 14
Table 5. M41T65 register map ................................................................ 15
Table 6. Alarm repeat modes.................................................................18
Table 7. Square wave output frequency ......................................................... 19
Table 8. Examples using century bits ........................................................... 20
Table 9. Initial power-up values ............................................................... 21
Table 10. Absolute maximum ratings ............................................................22
Table 11. Operating and AC measurement conditions................................................. 23
Table 12. Capacitance ...................................................................... 24
Table 13. DC characteristics .................................................................. 24
Table 14. Crystal electrical characteristics ......................................................... 25
Table 15. Crystals suitable for use with M41T6x series RTCs ........................................... 25
Table 16. Oscillator characteristics .............................................................. 25
Table 17. AC characteristics .................................................................. 26
Table 18. QFN16 — 16-pin, quad, flat package, no-lead, 3x3 mm, package mechanical data...................... 29
Table 19. LCC8 — 8-pin, 1.5 x 3.2 mm leadless chip carrier package mechanical data ..........................31
Table 20. Carrier tape dimensions for QFN16 3 x 3 mm package .........................................33
Table 21. Reel dimensions for 12 mm carrier tape - QFN16 and LCC8 packages .............................. 35
Table 22. Ordering information scheme...........................................................36
Table 23. Document revision history .............................................................37
M41T62, M41T64, M41T65
List of tables
DS3840 - Rev 24
page 40/42