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ST72411R 数据表(PDF) 57 Page - STMicroelectronics |
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ST72411R 数据表(HTML) 57 Page - STMicroelectronics |
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57 / 71 page ![]() ST72411R 57/71 7.2 RECOMMENDED OPERATING CONDITIONS Figure 39. Maximum Operating Frequency (fOSC) Versus Supply Voltage (VDD) (Operating conditions T A = 0 to +70°C unless otherwise specified) GENERAL Symbol Parameter Conditi ons Min Typ Max Unit VDD Supply voltage see Figure 39 4.0 6.6 V fRCINT Internal oscillator frequency 7.16 ±25% MHz fOSC External clock source >0 8 TA Ambient temperature range 0 70 °C I26& >0+ ] @ Main Supply Voltage [VDD] FUNCTIONALI TY NOT GUARAN TEED IN THIS AREA FUNCTIONA LITY GUARANTE ED IN THIS AREA WITH FOR 3V CARDS ONLY (ISO/IE C7816-3 CLASS B) FUNCTI ONALITY GUARANTEE D IN THIS AREA FOR 3V AND 5V CARDS fRCINT |
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