why we need external pull up for port 0 of micro-controller
8051?
Answers were Sorted based on User's Feedback
Answer / shantanu
Pull up & pull down resistors must be requird I2C & Micro-
controller/ADC. The output port will be tri stated means 1
or 0, we can't prdict.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shaveta
if pull up resistor is not added then the output will not
predict....without this resistance the circuit is called pull
down...
| Is This Answer Correct ? | 0 Yes | 4 No |
how profibus transfer data?
Define what is space charge width?
Why diodes should be connected in antiparallel with thethyristors in inverter circuits?
What is monostable multivibrator?
How works inductive & capacitive sensors and what is the difference between them?
im ranjith having 63%in my b tech with 25 backlogs,cleard all .. im having 1100 in gre and 90 in my toefl can i get visa? im planning spring 2011 pls help me i applied for i20 im applying 4 universities pls help me can i get visa? shall i prefer canada if i could not get visa?
why diodes are not operated in the breakdown region in rectifiers?
why ICS starts with 74
7 Answers Caritor, College School Exams Tests,
hiii,i am richa.. i want to know .. the criteria for appearung for BEL... how much percent i shuold have and is it will be for per semester or for a whole year
why and when we use fibre optic ? how one can decide to use any type of cable specially fiber optic cable ?
why ac waveform repesented by using sine wave why not others?
What is the use of induction motor?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)