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ST8024CTR Fiches technique(PDF) 11 Page - STMicroelectronics |
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ST8024CTR Fiches technique(HTML) 11 Page - STMicroelectronics |
11 / 31 page ST8024 Electrical characteristics 11/31 Table 9. Crystal connection (pins XTAL1 and XTAL2) (VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit CXTAL1,2 External capacitance on pins XTAIL1, XTAIL2 Depends on type of crystal or resonator used 15 pF fXTAL Crystal frequency 2 26 MHz fXTAL1 Frequency applied on pin XTAL1 0 26 MHz VIH High level input voltage on pin XTAIL1 0.7 VDD VDD+0.3 V VIL Low level input voltage on pin XTAIL1 -0.3 +0.3VDD V Table 10. Data lines (pins I/O, I/OUC, AUX1, AUX2, AUX1UC AND AUX2UC) (VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit tD(I/O-I/OUC), tD(I/OUC-I/O) I/O to I/OUC, I/OUC to I/O falling edge delay 200 ns tpu Active pull-up pulse width 100 ns fI/O(MAX) Maximum frequency on data lines 1 MHz CI Input capacitance on data lines 10 pF Table 11. Data lines to card reader (pins I/O, AUX1 AND AUX2 with integrated 11 k Ω pull-up resistor to VCC (VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit VO(inactive) Output voltage Inactive mode NO LOAD 0 0.1 V IO(inactive)=1mA 0.3 IO(inactive) Output current Inactive mode; pin grounded -1 mA VOH High level output voltage No DC Load 0.9 VCC VCC+0.1 V 5 and 3 V cards; IOH < - 40µA 0.75 VCC VCC+0.1 |IOH| ≥ 10mA 0 0.4 VOL Low level output voltage IOL = 1 mA 0 0.2 V IOL ≥ 15 mA VCC-0.4 VCC VIH High level input voltage 1.5 VCC+0.3 V VIL Low level input voltage 0.3 0.8 V |ILIH| High level input leakage current VIH = VCC 10 µA |IIL| Low level input current VIL = 0 V 600 µA RPU Integrated pull-up resistor Pull-up resistor to VCC 911 13 k Ω tT(DI) Data input transition time VIL max to VIH min. 1.2 µs tT(DO) Data output transition time VO = 0 to VCC; CL ≤ 80 pF; 10% to 90% 0.1 µs IPU Current when pull-up active VOH = 0.9VCC; CL = 80 pF -1 mA |
Numéro de pièce similaire - ST8024CTR |
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Description similaire - ST8024CTR |
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