<ABL 코드>
module decoder2to4
title ‘2 to 4 decoder abel code by changkyu’
DCODER device ‘P16V8C’;
“input pins
I0, I1 pin 2,3;
EN pin 4;
“output pins
Y0, Y1, Y2, Y3 pin 16,17,18,19;
“constants
X = .X.;
equations
Y0 = EN & !I0 & !I1;
Y1 = EN & !I1 & I0;
Y2 = EN & I1 & !I0;
Y3 = EN & I1 & I0;
test_vectors
end decoder2to4
([EN, I1, I0] -> [Y3, Y2, Y1, Y0])
[ 0,.X.,.X.] -> [ 0, 0, 0, 0];
[ 1, 0, 0] -> [ 0, 0, 0, 1];
[ 1, 0, 1] -> [ 0, 0, 1, 0];
[ 1, 1, 0] -> [ 0, 1, 0, 0];
[ 1, 1, 1] -> [ 1, 0, 0, 0];
<DOC 출력>
ABEL(tm) Version 2.00b – Document Generator 15-Nov-107 01:28 PM
2 to 4 decoder abel code by changkyu
Chip diagram for Module decoder2to4
Device DCODER
P16V8C
———- /———-
end of module decoder2to4
| / |
| —– |
| 1 20 | Vcc
| |
I0 | 2 19 | Y3
| |
I1 | 3 18 | Y2
| |
EN | 4 17 | Y1
| |
| 5 16 | Y0
| |
| 6 15 |
| |
| 7 14 |
| |
| 8 13 |
| |
| 9 12 |
| |
GND | 10 11 |
| |
| |
—————————–
DOWNRG 