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ATVaultIC460-R 数据表(PDF) 16 Page - ATMEL Corporation |
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ATVaultIC460-R 数据表(HTML) 16 Page - ATMEL Corporation |
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16 / 30 page ![]() 16 TPR0441BX–SMS–09/09 ATVaultIC460 Figure 3-6. ATVaultIC460 connexions for ISO7816 typical application Table 3-6. External components, Bill of Materials 3.5.1 Internal Oscillator characteristics The internal oscillator is optimized for a 48Mhz ceramic resonator oscillator. Table 3-7. Internal oscillator characteristics (T= -25°C to +70°C) C1 C2 RST I/O0 CLK I/O0 CLK RESET VCC CVCC ATVaultIC460 SC READER GND R1 VCC GND Configuration Reference Description Typ.Value Comment USB Ceramic Oscillator 48MHz C1 Power Supply Decoupling Capacitors 4.7 μF Recommended C2 Power Supply Decoupling Capacitors 10 nF Recommended I2C R1, R2 Pull-Up Resistors 2.2 kΩ Recommended C1 Power Supply Decoupling Capacitors 4.7 μF Recommended C2 Power Supply Decoupling Capacitors 10 nF Recommended SPI C1 Power Supply Decoupling Capacitors 4.7 μF Recommended C2 Power Supply Decoupling Capacitors 10 nF Recommended ISO7816 R1 Pull-Up Resistor 20 kΩ usually on reader side C1 Power Supply Decoupling Capacitors 4.7 μF usually on reader side C2 Power Supply Decoupling Capacitors 10 nF usually on reader side Code Parameter Condition Min. Typ. Max. Unit Vdd Supply voltage 1.4 1.8 2.0 V ΔVdd Supply ripple rms value, 10kHz to 10Mhz 30 mV Idd on Current consumption External capacitors: 12pF 4.8 7.1 mA Freq Operating frequency 40 48 MHz Duty Duty cycle 40 60 % |
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