In contrast to general-purpose CPUs, microcontrollers may not
implement an external ( ) or
data bus.
A: voltage
B: current
C: address
D: resistance
implement an external ( ) or
data bus.
A: voltage
B: current
C: address
D: resistance
举一反三
- The resistance value is infinite, the current passing through the resistance is always zero, and the voltage depends on the external circuit, then it is called as the short circuit state.
- Name the three types of bus which are used when external memory is connected to the 8051.( ) A: Address bus B: Control bus C: Data bus D: Enable bus
- 2.Whichoftheelectricalpropertieslistedwillalwaysbethesameforeachcomponentinaparallelcircuit A: Impedance B: Current C: Resistance D: Voltage
- Which<br/>of the following devices may be used to de-multiplex the lower<br/>address bus from multiplexed address-data bus of MCS-51?(). A: 74373 B: 74245 C: 74139 D: 74139
- 1.Inaseriescircuit,whichvaluewillremainunchangedatallplacesinthecircuit. A: Voltage B: Current C: Resistance D: Inductance