Selection reference · illustrative scenario
Clock roles in the application
Separate data acquisition, wireless communication and low-power timekeeping in home and portable equipment, using the actual feature set and operating profile.
Engineering selection review
Review backup timing, wake recovery, communication references and temperature. Estimate power from the whole operating profile rather than promising battery life from one typical-current figure.
Procurement and documentation
Include functions and wireless module and time error and backup power, plus the existing full code, sample and production quantities and delivery target. Discuss nominated international brands and domestic candidates separately, confirming parameters and documents by part.
Illustrative validation scenario
Test periodic wake, reconnection, timestamps and power switching, retaining results within the scope defined by equipment engineering.
Inquiry & validation checklist
- Functions and wireless module
- Time error and backup power
- Sleep/wake sequence
- Temperature and document needs
