<s>
The	O
Motorola	B-Device
68030	I-Device
(	O
"	O
sixty-eight-oh-thirty	O
"	O
)	O
is	O
a	O
32-bit	O
microprocessor	B-Architecture
in	O
the	O
Motorola	B-Device
68000	I-Device
family	I-Device
.	O
</s>
<s>
The	O
68030	B-Device
was	O
the	O
successor	O
to	O
the	O
Motorola	B-Device
68020	I-Device
,	O
and	O
was	O
followed	O
by	O
the	O
Motorola	B-Device
68040	I-Device
.	O
</s>
<s>
The	O
68030	B-Device
is	O
essentially	O
a	O
68020	B-Device
with	O
a	O
memory	B-General_Concept
management	I-General_Concept
unit	I-General_Concept
(	O
MMU	O
)	O
and	O
instruction	O
and	O
data	O
caches	O
of	O
256	O
bytes	B-Application
each	O
.	O
</s>
<s>
It	O
added	O
a	O
burst	B-Architecture
mode	I-Architecture
for	O
the	O
caches	O
,	O
where	O
four	O
longwords	O
can	O
be	O
loaded	O
into	O
the	O
cache	O
in	O
a	O
single	O
operation	O
.	O
</s>
<s>
The	O
MMU	O
was	O
mostly	O
compatible	O
with	O
the	O
external	O
68851	B-General_Concept
that	O
would	O
be	O
used	O
with	O
the	O
68020	B-Device
,	O
but	O
being	O
internal	O
allowed	O
it	O
to	O
access	O
memory	O
one	O
cycle	O
faster	O
than	O
a	O
68020/68851	O
combo	O
.	O
</s>
<s>
The	O
68030	B-Device
did	O
not	O
include	O
a	O
built-in	O
floating-point	B-General_Concept
unit	I-General_Concept
(	O
FPU	O
)	O
,	O
and	O
was	O
generally	O
used	O
with	O
the	O
68881	B-General_Concept
and	O
the	O
faster	O
68882	B-General_Concept
.	O
</s>
<s>
The	O
addition	O
of	O
the	O
FPU	O
was	O
a	O
major	O
design	O
note	O
of	O
the	O
subsequent	O
68040	B-Device
.	O
</s>
<s>
The	O
68030	B-Device
lacks	O
some	O
of	O
the	O
68020	B-Device
's	O
instructions	O
,	O
but	O
it	O
increases	O
performance	O
by	O
≈5%	O
while	O
reducing	O
power	O
draw	O
by	O
≈25%	O
.	O
</s>
<s>
The	O
68030	B-Device
features	O
273,000	O
transistors	O
.	O
</s>
<s>
A	O
lower-cost	O
version	O
was	O
also	O
released	O
,	O
the	O
Motorola	O
68EC030	B-Device
,	O
lacking	O
the	O
on-chip	O
MMU	O
.	O
</s>
<s>
It	O
was	O
commonly	O
available	O
in	O
both	O
132-pin	O
QFP	B-Algorithm
and	O
128-pin	O
PGA	B-Algorithm
packages	O
.	O
</s>
<s>
The	O
poorer	O
thermal	O
characteristics	O
of	O
the	O
QFP	B-Algorithm
package	O
limited	O
that	O
variant	O
to	O
33MHz	O
;	O
the	O
PGA	B-Algorithm
68030s	B-Device
included	O
40MHz	O
and	O
50MHz	O
versions	O
.	O
</s>
<s>
There	O
was	O
also	O
a	O
small	O
supply	O
of	O
QFP	B-Algorithm
packaged	O
EC	O
variants	O
.	O
</s>
<s>
The	O
68030	B-Device
can	O
be	O
used	O
with	O
the	O
68020	B-Device
bus	O
,	O
in	O
which	O
case	O
its	O
performance	O
is	O
similar	O
to	O
68020	B-Device
that	O
it	O
was	O
derived	O
from	O
.	O
</s>
<s>
However	O
,	O
the	O
68030	B-Device
provides	O
an	O
additional	O
synchronous	O
bus	O
interface	O
which	O
,	O
if	O
used	O
,	O
accelerates	O
memory	O
accesses	O
up	O
to	O
33%	O
compared	O
to	O
an	O
equally	O
clocked	O
68020	B-Device
.	O
</s>
<s>
The	O
68030	B-Device
was	O
used	O
in	O
many	O
models	O
of	O
the	O
Apple	B-Device
Macintosh	I-Device
II	I-Device
and	O
Commodore	B-Device
Amiga	I-Device
series	O
of	O
personal	B-Device
computers	I-Device
,	O
NeXT	O
Cube	B-Device
,	O
later	O
Alpha	O
Microsystems	O
multiuser	O
systems	O
,	O
and	O
some	O
descendants	O
of	O
the	O
Atari	B-Device
ST	I-Device
line	O
such	O
as	O
the	O
Atari	B-Device
TT	I-Device
and	O
the	O
Atari	B-Device
Falcon	I-Device
.	O
</s>
<s>
It	O
was	O
also	O
used	O
in	O
Unix	B-Device
workstations	I-Device
such	O
as	O
the	O
Sun	O
Microsystems	O
Sun-3x	O
line	O
of	O
desktop	O
workstations	B-Device
(	O
the	O
earlier	O
"	O
sun3	O
"	O
used	O
a	O
68020	B-Device
)	O
,	O
Apollo	O
Computer	O
's	O
DN3500	B-Device
and	I-Device
DN4500	I-Device
workstations	B-Device
,	O
laser	O
printers	O
and	O
the	O
Nortel	O
Networks	O
DMS-100	B-Protocol
telephone	O
central	O
office	O
switch	O
.	O
</s>
<s>
More	O
recently	O
,	O
the	O
68030	B-Device
core	O
has	O
also	O
been	O
adapted	O
by	O
Freescale	O
into	O
a	O
microcontroller	B-Architecture
for	O
embedded	O
applications	O
.	O
</s>
<s>
LeCroy	O
has	O
used	O
the	O
68EC030	B-Device
in	O
certain	O
models	O
of	O
their	O
9300	O
Series	O
digital	O
oscilloscopes	O
including	O
“	O
C	O
”	O
suffix	O
models	O
and	O
high	O
performance	O
9300	O
Series	O
models	O
,	O
along	O
with	O
the	O
Mega	O
Waveform	O
Processing	O
hardware	O
option	O
for	O
68020-based	O
9300	O
Series	O
models	O
.	O
</s>
<s>
The	O
68EC030	B-Device
is	O
a	O
low	O
cost	O
version	O
of	O
the	O
68030	B-Device
,	O
the	O
difference	O
between	O
the	O
two	O
being	O
that	O
the	O
68EC030	B-Device
omits	O
the	O
on-chip	O
memory	B-General_Concept
management	I-General_Concept
unit	I-General_Concept
(	O
MMU	O
)	O
and	O
is	O
thus	O
essentially	O
an	O
upgraded	O
68020	B-Device
.	O
</s>
<s>
The	O
68EC030	B-Device
was	O
used	O
as	O
the	O
CPU	O
for	O
the	O
low-cost	O
model	O
of	O
the	O
Amiga	B-Device
4000	I-Device
,	O
and	O
on	O
a	O
number	O
of	O
CPU	O
accelerator	O
cards	O
for	O
the	O
Commodore	B-Device
Amiga	I-Device
line	O
of	O
computers	O
.	O
</s>
<s>
It	O
was	O
also	O
used	O
in	O
the	O
Cisco	O
Systems	O
2500	B-Device
Series	I-Device
router	O
,	O
a	O
small-to-medium	O
enterprise	O
computer	O
internetworking	O
appliance	O
.	O
</s>
<s>
The	O
50MHz	O
speed	O
is	O
exclusive	O
to	O
the	O
ceramic	O
PGA	B-Algorithm
package	O
,	O
the	O
plastic	O
'	O
030	O
stopped	O
at	O
40MHz	O
.	O
</s>
