What is the R5F100LGA RTC clock accuracy when the internal low-speed oscillator fIL is used as the reference input source?
Low-speed on-chip oscillatorclock frequency accuracy–15 +15 %
My question is: With so many deviations, how can it be used as a real-time clock?
可以, 如果你能接受这个时钟精度的话(–15 +15 %), 可以所谓RTC的时钟源.
–15 +15 % 数据的测试条件是
3.2.2 On-chip oscillator characteristics(TA = –40 to +105°C, 2.4 V ≤ VDD ≤ 5.5 V, VSS = 0 V)
有没有TA=-20 到+50℃,VDD=5V的测试数据?
这是全温度范围满足的精度, 不提供其他数据.