
Philips Semiconductors
9-bit odd/even parity generator/checker
LOGIC DIAGRAM
8
I0
9
I1
10
I2
11
I3
12
I4
13
I5
VCC=Pin 14
GND=Pin 7
1
I6
2
I7
4
I8
FUNCTION TABLE
INPUTS
Number of High Data Inputs (I0 - I8)
Even — 0, 2, 4, 6, 8
Odd — 1, 3, 5, 7, 9
H = High voltage level
L = Low voltage level
OUTPUTS
∑E
∑O
H
L
L
H
Product specification
74F280B
5
ΣE
6
ΣO
SF00847
1996 Mar 12
3