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MAXQ7667 Folha de dados(PDF) 7 Page - Maxim Integrated Products |
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MAXQ7667 Folha de dados(HTML) 7 Page - Maxim Integrated Products |
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7 / 40 page ![]() 16-Bit, RISC, Microcontroller-Based, Ultrasonic Distance-Measuring System _______________________________________________________________________________________ 7 ELECTRICAL CHARACTERISTICS (continued) (VDVDDIO = +5V, VAVDD = +3.3V; VDVDD = +2.5V, system clock (fSYSCLK) = 16MHz, burst frequency (fBURST) = bandpass frequency (fBPF) = 50kHz, CREFBG = CREF = 1µF in parallel with 0.01µF, fADCCLK = 2MHz (SAR data rate = 125ksps), TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DIGITAL OUTPUTS (GPIO, UART, JTAG, SPI) ISINK = 0.5mA, drive strength = low 0.4 Output Low Voltage ISINK = 1.0mA, drive strength = high 0.4 V ISOURCE = 0.5mA, drive strength = low VDVDDIO - 0.5 Output High Voltage ISOURCE = 1.0mA, drive strength = high VDVDDIO - 0.5 V Drive strength = low 880 Maximum Output Impedance Drive strength = high 450 Three-State Leakage ±0.01 ±1 µA Three-State Capacitance 15 pF BURST OUTPUT Output Low Voltage ISINK = 8mA 0.4 V Output High Voltage ISOURCE = 8mA VDVDDIO - 0.5 V Drive strength = low 90 Maximum Output Impedance Drive strength = high 45 Three-State Leakage ±0.01 ±1 µA Three-State Capacitance 15 pF Short-Circuit Current Burst drive set to high 50 mA RESET Internal Pullup Resistance Pulled up to DVDDIO 120 k Output Low Voltage ISINK = 0.5mA 0.4 V Output High Voltage No external load VDVDDIO - 0.5 V Input Low Voltage When driven by external source 0.8 V Input High Voltage When driven by external source VDVDDIO - 1 V UART/LIN INTERFACE (UTX, URX) Asynchronous mode (system clock/32) 500 Synchronous mode (system clock/8) 2000 UART Baud Rates LIN 2.0 compatibility (Note 3) 1 20 kbps |
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