If the program is stored entirely in an external EPROM, what voltage must be applied to the /EA PIN on the 8051? （ ）
A: 0 volts
B: +10 volts---------------------------------------------------------------------------------------------------------------------------------
C: +5 volts
D: -10 volts
A: 0 volts
B: +10 volts---------------------------------------------------------------------------------------------------------------------------------
C: +5 volts
D: -10 volts
举一反三
- The function of direct current regulated power supply is to input an alternating current power of 220volts, so that it can output __________.( ) A: alternating current 200 volts voltage B: direct current 24 volts voltage C: direct current 200 volts voltage D: alternating current 24 volts voltage
- A nonlinear device Z has the i-v relationship shown below.This device is used in the circuit shown below, where "I" is the value of the current source.Assuming that \(I=$I1 A\), what is the value of the voltage \(v_o\) (in Volts)?Now assuming that \(I = $I2 A\), what is the value of the voltage \(v_o\) (in Volts)?Finally, for the last two parts assume that \(I = $I34 A\).What is the value of the voltage \(v_o\) (in Volts)?<br/>______
- A nonlinear device Z has the i-v relationship shown below.This device is used in the circuit shown below, where "I" is the value of the current source.Assuming that \(I=$I1 A\), what is the value of the voltage \(v_o\) (in Volts)?Now assuming that \(I = $I2 A\), what is the value of the voltage \(v_o\) (in Volts)?<br/>______
- What is the unit of current A: kvp B: Ohms C: Volts D: Amperage
- Electromotive force (EMF) is measured in volts .