NXP Semiconductors UM10301 PCA2125 manuals

Nxp semiconductors UM10301 PCA2125 User Manual (52 pages)

Brand: Nxp-semiconductors | Category: Wall clocks | Size: 0.59 MB |

English

Table of contents

UM10301

1

Contact information

2

1. Introduction

3

2. Features

4

3. Comparison

6

4. Power-on reset (POR)

8

5. Voltage-low detector

8

6. Oscillator

9

NXP Semiconductors

10

6.1 Oscillation allowance

15

7.1 Modes which don’t work

17

7.2 Effect of temperature

17

1 TTBfff

18

9. Accuracy

20

10. Oscillator tuning

22

11.1 Century tracking

25

12.2 Alarm

27

12.3 Setting the timer

29

13. Backup power supply

30

13.3 Capacitors

33

CbackupendrtCbackupsta

35

14. PCB layout guidelines

36

0005.003.06.41085.8

40

INT is set to pulsed mode

43

18. Timing requirements for I

45

C read and write

45

Fig 21. Block diagram I

46

19. Troubleshooting

48

20. References

50

21. Legal information

51

22. Contents

52

NXP Semiconductors devices