Condition for ILO accuracy of Automotive PSoC4000S

[YoIs_1298666]

Hello,

There is a ILO accuracy in the Automotive PSoC® 4: PSoC 4000S datasheet like below.

                                                                   min  typ max

SID237 FILOTRIM1 ILO frequency range    20  40    80 kHz

Q1:Is this "Guaranteed by characterization" or "designed value"?

And there is a "Trimmed ILO frequency (+/ 60%) " in PSoC 4 Low-Frequency Clock (cy_lfclk) datasheet.

Similarly, there is a "40-kHz internal low-speed oscillator (ILO) with ±60 percent accuracy

with trim (can be calibrated using the IMO)" in PSoC 4000S Family PSoC 4 Architecture TRM.

Q2:What is "Trimmed ILO frequency (+/ 60%) "? and please tell me the relation between SID237 min/typ/max value and "Trimmed ILO frequency (+/ 60%) ".

Best regards,

Yocchi

[RyanZhao · Accepted solution]

Ishii-san,

A1: This is "Guaranteed by characterization"

A2: Trimmed ILO Frequency is trimmed in factory before shipment. For PSoC4000S, the trimmed ILO frequency should be 40KHz +100%,-50%, not +/- 60% .  +/- 60% is applicable on those PSoC 4 w/o S devices (PSoC 4000, 4100, 4200, 4200M, 4200 L).

We will contact documents team to update the data in TRM.

Best Regards,

Ryan