PCA2129T/Q900/2,51 NXP Semiconductors, PCA2129T/Q900/2,51 Datasheet - Page 69

• Manufacturer Part Number: PCA2129T/Q900/2,51
• Description: Real Time Clock
• Manufacturer: NXP Semiconductors
• Series: PCA2129r

Specifications of PCA2129T/Q900/2,51

• 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: 1.8 V
• Maximum Operating Temperature: + 80 C
• Minimum Operating Temperature: - 30 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-16
• Battery Backup Switching: Yes

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 . . . . . . . . . .12
Table 11. CLKOUT frequency selection . . . . . . . . . . . . . .13
Table 12. Aging_offset - crystal aging offset register
Table 13. Frequency correction at 25 °C, typical . . . . . . .14
Table 14. Power management control bit description. . . .15
Table 15. Output pin BBS. . . . . . . . . . . . . . . . . . . . . . . . .18
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
PCA2129T
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 PCA2129T . . . . . . . . . . . . . .4
Register overview . . . . . . . . . . . . . . . . . . . . . . .7
(address 00h) bit description . . . . . . . . . . . . . . .9
(address 01h) bit description . . . . . . . . . . . . . .10
(address 02h) bit description . . . . . . . . . . . . . . 11
(address 0Fh) bit description . . . . . . . . . . . . . .12
(address 19h) bit description . . . . . . . . . . . . . .14
(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. 3 — 24 January 2013
Accurate RTC with integrated quartz crystal for automotive
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
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 . . . . . . . . . . . . . . . . . 63
Table 58. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 59. Revision history . . . . . . . . . . . . . . . . . . . . . . . . 66
(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
bit MSF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2
2
C slave address byte . . . . . . . . . . . . . . . . . . . 50
C-bus characteristics . . . . . . . . . . . . . . . . . . . 60
PCA2129T
© NXP B.V. 2013. All rights reserved.
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