<s>
The	O
MC14500B	B-Device
Industrial	O
Control	O
Unit	O
(	O
ICU	O
)	O
is	O
a	O
CMOS	B-Device
one-bit	O
microprocessor	B-Architecture
designed	O
by	O
Motorola	O
for	O
simple	O
control	O
applications	O
in	O
1977	O
.	O
</s>
<s>
MC14500B	B-Device
(	O
ICU	O
)	O
is	O
well-suited	O
to	O
the	O
implementation	O
of	O
ladder	O
logic	O
,	O
and	O
thus	O
could	O
be	O
used	O
to	O
replace	O
relay	O
systems	O
and	O
programmable	B-Architecture
logic	I-Architecture
controllers	I-Architecture
,	O
also	O
intended	O
for	O
serial	O
data	O
manipulation	O
.	O
</s>
<s>
The	O
MC14500B	B-Device
unit	O
does	O
not	O
include	O
a	O
program	B-General_Concept
counter	I-General_Concept
(	O
PC	O
)	O
;	O
instead	O
,	O
a	O
clock	O
signal	O
drives	O
a	O
separate	O
PC	O
chip	O
;	O
therefore	O
the	O
size	O
of	O
supported	O
memory	O
is	O
dependent	O
on	O
the	O
implementation	O
of	O
that	O
chip	O
.	O
</s>
<s>
The	O
ICU	O
architecture	O
is	O
similar	O
to	O
that	O
of	O
the	O
DEC	O
PDP-14	B-Device
computer	O
.	O
</s>
<s>
In	O
the	O
CMOS	B-Device
Logic	O
Division	O
in	O
Austin	O
,	O
Texas	O
,	O
USA	O
(	O
where	O
it	O
was	O
made	O
)	O
Phil	O
Smith	O
was	O
the	O
chip	O
designer	O
;	O
Mike	O
Hadley	O
provided	O
product	O
applications	O
support	O
.	O
</s>
<s>
Băneasa	O
manufactured	O
a	O
clone	O
of	O
the	O
MC14500B	B-Device
with	O
the	O
designation	O
βP14500	O
in	O
IIL	B-General_Concept
technology	O
(	O
rather	O
than	O
the	O
original	O
CMOS	B-Device
)	O
.	O
</s>
