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VIH overshoot: VIH,max = VDDQ + 1.2V for a pulse width ≤ 3ns, and the pulse width cannot) q, D2 t' J% h% G$ Q3 D: y/ S# g
be greater than one-third of the cycle rate. VIL undershoot: VIL,min = –1.2V for a pulse
: n( Q; \1 m! l1 y- Ywidth ≤3ns, and the pulse width cannot be greater than one-third of the cycle rate.$ w) G* p5 b, d& z \. N
6 D- F, W) n C' j5 b9 O大家是如何理解这段话的,比如供电电压为3.3V,是不是只要过冲电压小于4.5V,下冲电压大于-1.2V就可以了,我不大理解for a pulse width ≤ 3ns, and the pulse width cannot be greater than one-third of the cycle rate ,这句话是说的啥意思呢??? |
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