ADuC847: FAQ

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  • ADUC847 External reference voltage range

    Q Based on the information on datasheet it's not clear to us that would it be safe to use 5V reference with 5V / 3.3V power? A The REFin + to REFin- range is 1v to AVdd. So the external reference…
  • ADuC847: Crystal start up

    Q I'm using ADuC836 with 85SMX watch crystal and all is working fine. With the same crystal and ADuC848/847 samples, the oscillation don't start. I try 3 samples but nothing. why? could oscillator section…
  • ADUC847: Detecting the stop condition in slave mode

    Q I need technical informations about Analogue Device ADuc847 I want to use it in I2C hardware slave mode Is it possible to detect I2C Stop sequence in software ? The problem is when the master abort…
  • ADuC847: Noise perfomance

    Q We are using your ADuC847 microconverter to interface to a strain-gauge load cell for a weighing application. The load cell output is 0 - 10mV and is connected to Ain1+ and Ain-. The ADC is configured…
  • ADuC847: Using aspire in debug run mode

    Q I am using the QuickStart kit for downloading and debugging. In debug step by step mode the Aspire 1.06 software tool works fine. However when goes in run mode and then I press the Stop/Pause buttons…
  • I tested ADuC847 Burnout current to detect the short/open circuit. But it doesn't work

    Q I tested ADuC847 Burnout current to detect the short/open circuit. But it deosn't work. And the ADuC847 Document said: "Burnout Current Enable Bit.When set, this bit enables the sensor burnout current…
  • Model on Eval board - flash and supply - EVAL-ADuC847

    Q We need to get information about, which MCU is assembled on the EVAL-ADUC847QSZ board. ADUC847 has different versions ADuC847BSZ62-5 - 62Kb to ADuC847BSZ8-5 - 8 Kb with 5V and 3V options. A EVAL…
  • Recommended programming socket for ADuC847

    Q We are using more than 10 000 pcs/year ADuC847 56-Lead LFCSP. For our service center we need to have pre-programmed processors, and currently our service engineers have to solder them. Could you recommend…
  • What is the maximum Source current, that port P2.5 and P2.6 can deliver?

    Q What is the maximum Source current, that port P2.5 and P2.6 can deliver? (Note sink current is defined in datasheet but not source current)! A The ADuC847 digital outputs can source up to 80uA…

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