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HRTIMER input frequency

Uwe Bonnes
Principal III

Can the HRTIMER input frequeny be lower than the maximum value given in the datasheets? E.g. on a G74 with HRTIMER input at 125 MHz, steps would be nice 250 ps versus 188.2... ps at 170 MHz.

The functional description "HRTIM timer is made of a digital kernel clocked at 170 MHz followed by delay lines. " is a strong hint that only one frequency fits, but some confirmation is welcome.

4 REPLIES 4

See AN4539, Table 3. HRTIM input frequency operating range.

JW

Uwe Bonnes
Principal III

These values belong in the datasheet and not hidden in some AN!

Well, I agree, but I guess, these are "typical" values, and not guaranteed by testing.

As you've might be already aware, I'm not ST.

JW

Uwe Bonnes
Principal III

I knoe you are "not ST". I should have addressed

@Imen DAHMEN (ST Employee)​

explicit.