| 전자부품 데이터시트 검색엔진 |
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MAXQ2010-RFX+ 데이터시트(PDF) 10 Page - Maxim Integrated Products |
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MAXQ2010-RFX+ 데이터시트(HTML) 10 Page - Maxim Integrated Products |
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10 / 34 page ![]() 16-Bit Mixed-Signal Microcontroller with LCD Interface 10 ______________________________________________________________________________________ I2C ELECTRICAL CHARACTERISTICS (VDVDD = VAVDD = 2.7V to 3.6V, TA = -40°C to +85°C.) Note 19: Devices that use nonstandard supply voltages that do not conform to the intended I2C bus system levels must relate their input levels to the voltage to which the pullup resistors RP are connected. See Figure 3. Note 20: CB—Capacitance of one bus line in pF. Note 21: The maximum fall time of 300ns for the SDA and SCL bus lines shown in the I2C Bus Controller Timing table is longer than the specified maximum tOF_I2C of 250ns for the output stages. This allows series protection resistors (RS) to be connected between the SDA/SCL pins and the SDA/SCL bus lines as shown in the I2C Bus Controller Timing (Acting as I2C Slave) table without exceeding the maximum specified fall time. See Figure 3. SDA P6.7 SCL P6.6 RS RS I2C DEVICE RS RS I2C DEVICE RP RP VDVDD MAXQ2010 Figure 3. Series Resistors (RS) for Protecting Against High-Voltage Spikes STANDARD MODE FAST MODE PARAMETER SYMBOL TEST CONDITIONS MIN MAX MIN MAX UNITS Input Low Voltage (Note 19) VIL_I2C -0.5 0.3 x VDVDD -0.5 0.3 x VDVDD V Input High Voltage (Note 19) VIH_I2C 0.7 x VDVDD 0.7 x VDVDD VDVDD + 0.5V V Input Hysteresis (Schmitt) VIHYS_I2C VDVDD > 2V 0.05 x VDVDD V Output Logic-Low (Open Drain or Open Collector) VOL_I2C VDVDD > 2V, 3mA sink current 0 0.4 0 0.4 V Output Fall Time from VIH_MIN to VIL_MAX with Bus Capacitance from 10pF to 400pF (Notes 20, 21) tOF_I2C 250 20 + 0.1CB 250 ns Pulse Width of Spike Filtering That Must Be Suppressed by Input Filter tSP_I2C 0 50 ns Input Current on I/O IIN_I2C Input voltage from 0.1 x VDVDD to 0.9 x VDVDD -10 +10 -10 +10 μA I/O Capacitance CIO_I2C 10 10 pF |
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