What is Microcontroller?

Microcontroller in the explanations

• For example, with a 3.3 V microcontroller output, IC = 100 mA and hFE = 100, choosing 5 × 1 mA = 5 mA gives about 520 Ω, so about 470 Ω in practice.

  In a circuit using a transistor as a switch, what is the ma…

• So when measuring with a microcontroller's ADC, for instance, the divider resistors are chosen to minimize loading or the output is buffered with a voltage follower.

  Two 10 kΩ resistors are connected in series across a 10 V s…

• With a good balance of speed (kS/s to tens of MS/s), resolution (8–18 bits) and power, it dominates microcontroller ADCs.

  Which correctly describes the operation of a successive-app…

Questions that mention Microcontroller (10)

1. When a microcontroller produces an analog voltage by passing a PWM signal through a low-pass filter, what determines the output voltage?
2. Which non-volatile memory has been integrated on the same chip as logic circuits to store microcontroller programs?
3. In a circuit using a transistor as a switch, what is the main purpose of a resistor in series with the base?
4. Two 10 kΩ resistors are connected in series across a 10 V supply. What is the voltage at the point between them (relative to ground)?
5. Which correctly describes the operation of a successive-approximation (SAR) AD converter?
6. What is a typical use of NOR flash memory?
7. Which LSI integrates a CPU, memory and peripherals such as timers and ADCs on one chip and is used to control appliances and equipment?
8. What is the role of the watchdog timer built into microcontrollers?
9. What is the main role of a gate driver for power semiconductors?
10. Which small computer, embedded in appliances, cars and other equipment to control them, integrates a CPU, memory and I/O circuits on one chip?

Related terms

MRAM ReRAM (resistive RAM) Current gain (hFE) Voltage follower Comparator Oversampling NOR flash memory Bit line Gate driver SiC (silicon carbide)