Newnes Circuit Calculations Pocket Book

342 Circuit calculations pocket book

Example

34

Convert

8.FE to

binary.

From Table

19.2

8

F E

111

1000

1111 1110

8-FE =

IOOO-IIIIIIIO2

(e) Binary

to hex

conversion

This conversion

can be

carried

out

directly from Table

19.2, by

first

dividing

the

binary number into groups

of

four digits, starting

at the

binary point,

and

working either left

or

right.

It may be

necessary

to

add zeros

at the

beginning

and the end of the

binary number,

in a

similar manner

to the

binary-octal conversion.

Example

35

Convert 10001110

2

to hex.

1000

1110

1

1

8

E

Example

36

Convert 101-110111

2

to hex.

0101

• 1101 1100

5

• D C

19.5 Logic gates

and

truth tables

(a) Introduction ...