PCF2129AT/2,518 NXP Semiconductors, PCF2129AT/2,518 Datasheet - Page 70

• Manufacturer Part Number: PCF2129AT/2,518
• Description: Real Time Clock
• Manufacturer: NXP Semiconductors
• Series: PCF2129r

Specifications of PCF2129AT/2,518

• Rohs: yes
• Function: Clock, Calendar, Alarm, Watchdog, Timestamp
• Rtc Bus Interface: I2C, SPI
• Date Format: Binary
• Time Format: Binary
• Supply Voltage - Max: 4.2 V
• Supply Voltage - Min: 1.2 V
• Maximum Operating Temperature: + 60 C
• Minimum Operating Temperature: - 15 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-20
• Battery Backup Switching: Yes
• Factory Pack Quantity: 2000

NXP Semiconductors
24. Tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10. Temperature measurement period . . . . . . . . . . 11
Table 11. CLKOUT frequency selection . . . . . . . . . . . . . .12
Table 12. Aging_offset - crystal aging offset register
Table 13. Frequency correction at 25 °C, typical . . . . . . .13
Table 14. Power management control bit description. . . .14
Table 15. Output pin BBS. . . . . . . . . . . . . . . . . . . . . . . . .17
Table 16. Seconds - seconds and clock integrity register
Table 17. Seconds coded in BCD format . . . . . . . . . . . .23
Table 18. Minutes - minutes register (address 04h) bit
Table 19. Hours - hours register (address 05h) bit
Table 20. Days - days register (address 06h) bit
Table 21. Weekdays - weekdays register (address 07h)
Table 22. Weekday assignments . . . . . . . . . . . . . . . . . . .24
Table 23. Months - months register (address 08h) bit
Table 24. Month assignments in BCD format . . . . . . . . . .25
Table 25. Years - years register (address 09h) bit
Table 26. Second_alarm - second alarm register
Table 27. Minute_alarm - minute alarm register
Table 28. Hour_alarm - hour alarm register
Table 29. Day_alarm - day alarm register
Table 30. Weekday_alarm - weekday alarm register
Table 31. Watchdg_tim_ctl - watchdog timer control
Table 32. Watchdg_tim_val - watchdog timer value
Table 33. Programmable watchdog timer. . . . . . . . . . . . .31
Table 34. Flag location in register Control_2 . . . . . . . . . .32
Table 35. Example values in register Control_2 . . . . . . . .33
Table 36. Example to clear only AF (bit 4) . . . . . . . . . . . .33
Table 37. Example to clear only MSF (bit 7). . . . . . . . . . .33
PCF2129AT
Product data sheet
Control_1 - control and status register 1
Control_2 - control and status register 2
Control_3 - control and status register 3
CLKOUT_ctl - CLKOUT control register
Ordering information . . . . . . . . . . . . . . . . . . . . . .2
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . .2
Marking codes . . . . . . . . . . . . . . . . . . . . . . . . . .2
Pin description of PCF2129AT . . . . . . . . . . . . . .4
Register overview . . . . . . . . . . . . . . . . . . . . . . .6
(address 00h) bit description . . . . . . . . . . . . . . .8
(address 01h) bit description . . . . . . . . . . . . . . .9
(address 02h) bit description . . . . . . . . . . . . . .10
(address 0Fh) bit description . . . . . . . . . . . . . . 11
(address 19h) bit description . . . . . . . . . . . . . .13
(address 03h) bit description . . . . . . . . . . . . . .23
description . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
description . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
description . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
bit description . . . . . . . . . . . . . . . . . . . . . . . . . .24
description . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
description . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
(address 0Ah) bit description . . . . . . . . . . . . . .27
(address 0Bh) bit description . . . . . . . . . . . . . .28
(address 0Ch) bit description . . . . . . . . . . . . . .28
(address 0Dh) bit description . . . . . . . . . . . . . .28
(address 0Eh) bit description . . . . . . . . . . . . . .29
register (address 10h) bit description . . . . . . .30
register (address 11h) bit description . . . . . . . .30
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 12 February 2013
Table 38. Timestp_ctl - timestamp control register
Table 39. Sec_timestp - second timestamp register
Table 40. Min_timestp - minute timestamp register
Table 41. Hour_timestp - hour timestamp register
Table 42. Day_timestp - day timestamp register
Table 43. Mon_timestp - month timestamp register
Table 44. Year_timestp - year timestamp register
Table 45. Battery switch-over and timestamp . . . . . . . . . 37
Table 46. Effect of bits MI and SI on pin INT and bit MSF 39
Table 47. First increment of time circuits after stop
Table 48. Interface selection input pin IFS. . . . . . . . . . . . 45
Table 49. Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 50. Command byte definition . . . . . . . . . . . . . . . . . 47
Table 51. I
Table 52. Limiting values . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 53. Static characteristics . . . . . . . . . . . . . . . . . . . . 53
Table 54. Frequency characteristics . . . . . . . . . . . . . . . . 57
Table 55. SPI-bus characteristics . . . . . . . . . . . . . . . . . . 58
Table 56. I
Table 57. Carrier tape dimensions of PCF2129AT . . . . . 63
Table 58. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 59. Revision history . . . . . . . . . . . . . . . . . . . . . . . . 67
(address 12h) bit description . . . . . . . . . . . . . . 35
(address 13h) bit description . . . . . . . . . . . . . . 35
(address 14h) bit description . . . . . . . . . . . . . . 35
(address 15h) bit description . . . . . . . . . . . . . . 36
(address 16h) bit description . . . . . . . . . . . . . . 36
(address 17h) bit description . . . . . . . . . . . . . . 36
(address 18h) bit description . . . . . . . . . . . . . . 36
release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2
2
Integrated RTC, TCXO and quartz crystal
C slave address byte . . . . . . . . . . . . . . . . . . . 50
C-bus characteristics . . . . . . . . . . . . . . . . . . . 60
PCF2129AT
© NXP B.V. 2013. All rights reserved.
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