Digital Circuits & Design, 1st Education by Pearson

14.6 | Chapter 14

I

IL

(LOW-level input current). The maximum input current that ows into gate as input

when a specied LOW level voltage is applied to that input.

I

OH

(HIGH-level output current). The minimum output current that ows from gate as

output in logic 1 state under specied load conditions.

I

OL

(LOW-level output current). The maximum output current that ows from gate as

output in a logic 0 state under specied load conditions.

Figures 14.2 and 14.3 illustrate the currents and voltages in the HIGH and LOW states,

respectively.

I

OL

+ 5 V

I

IL

V

IL

V

OL

FIGURE 14.3 | Current and voltage in

Low state

I

OH

I

IH

V

IH

V

OH

FIGURE 14.2 | Current and voltage ...