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ST8024LCDR Fiches technique(PDF) 11 Page - STMicroelectronics |
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ST8024LCDR Fiches technique(HTML) 11 Page - STMicroelectronics |
11 / 35 page ST8024L Electrical characteristics Doc ID 17709 Rev 5 11/35 Table 7. Step-up converter Symbol Parameter(1) Test conditions Min. Typ. Max. Unit fCLK Clock frequency Card active 2.2 3.2 MHz Vth(vd-vf) Threshold voltage for step-up converter to change to voltage follower 5 V card 5.2 5.8 6.2 V 3 V card 3.8 4.1 4.4 1.8 V card 3.8 4.1 4.4 VUP Output voltage on pin VUP (average value) 5 V card 5.2 5.7 6.2 V 3 V card 3.5 3.9 4.3 1.8 V card 3.5 3.9 4.3 1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C. Table 8. Card supply voltage characteristics Symbol Parameter(1) Test conditions Min. Typ. Max. Unit CVCC External capacitance on pin VCC See(2) 80 400 nF VCC Card supply voltage (including ripple voltage) Card inactive; |ICC| = 0 mA 5 V, 3 V and 1.8 V card -0.1 0 0.1 V Card inactive; |ICC| = 1 mA 5 V, 3 V and 1.8 V card -0.1 0 0.3 Card active; |ICC| < 80 mA 5 V card 4.75 5 5.25 Card active; |ICC| < 65 mA 3 V card 2.85 3 3.15 Card active; |ICC| < 45 mA 1.8 V card 1.68 1.8 1.92 Card active; single current pulse IP = –100 mA; tp = 2 µs 5 V card 4.65 5 5.25 Card active; single current pulse IP = –100 mA; tp = 2 µs 3 V card 2.76 3 3.20 Card active; single current pulse IP = –100 mA; tp = 2 µs 1.8 V card 1.62 1.8 1.98 Card active; current pulses, QP = 40 nAs 5 V card 4.65 5 5.25 3 V card 2.76 3 3.20 1.8 V card 1.62 1.8 1.98 Card active; current pulses QP = 40 nAs with |ICC| < 200 mA, tp < 400 ns 5 V card 4.65 5 5.25 3 V card 2.76 3 3.20 1.8 V card 1.62 1.8 1.98 VCC (RIPPLE) (P-P) Ripple voltage on VCC (peak-to-peak value) fRIPPLE = 20 kHz to 200 MHz 350 mV |
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