Page 336 - Embedded Microprocessor Systems Real World Design

NEGATIM LOGIC AND GATE
INMRTER om:
INPUT A
INPUT OUTPUT
n INPUT B OWUE) O(TRUE) o (mw MULTIPLEXER
OUTPUT
1 0 0 (TRUE) 1 (FALSE) 1 (FALSE) ENABLE INPUT g--pZ;
1 (FALSE) o (TRUE) 1 (FALSE) OUTPUT 3
1 (FALSE) 1 (FALSE) 1 (FALSE)
33-
AND GATE
INPUT A IS THE SAME AS INPUT B
OUTPUT
INPUT B A B OUTPUT OR GATE INPUT A
00 0 INPUT A
0 1 0 INPUTS OUTPUTS
1 0 0 INPUT E A B ENABLE 0 1 2 3
11 1 A B OUTPUT
00 0 x x 1 1111
01
1
OR GATE
=E+ 1 1 0 1110
0
1011
INPUT A 1 11 1 1 0 0 1 0 1 0 0 0 0 0111
1101
OUTPUT
INPUTB A B OUTWT
00 0
0 1 1 NEGATIM LOGIC OR GATE
1 0 1
1 1 1 INPUT A
INWT E OUTPUT
=D- 1 (FALSE) 0 ClRUE) 0 (TRUE)
NAND GATE
0 (TRUE)
INPUT A 0 (TRUE) 1 (FALSE) 0 (TRUE)
OUTPUT
INPUT B A B OUTPUT 1 (FALSE) 1 (FALSE) 1 (FALSE)
00 1 IS THE SAME AS
0 1 1
1 0 1 AND GATE
1 1 0 INPUT A
OUTPUT
NOR GATE
0 0 01 0 0
INPUT A '-p OUTPUT
INPUT 8 1 0 0
A B OUTPUT 11 1
00 1
0 1 0
10 0
1 1 0
Figure C.l
Basic Logic Gates.