<s>
The	O
Zilog	B-Device
Z180	I-Device
eight-bit	O
processor	O
is	O
a	O
successor	O
of	O
the	O
Z80	B-General_Concept
CPU	O
.	O
</s>
<s>
It	O
is	O
compatible	O
with	O
the	O
large	O
base	O
of	O
software	O
written	O
for	O
the	O
Z80	B-General_Concept
.	O
</s>
<s>
The	O
Z180	B-Device
family	O
adds	O
higher	O
performance	O
and	O
integrated	O
peripheral	O
functions	O
like	O
clock	O
generator	O
,	O
16-bit	O
counters/timers	O
,	O
interrupt	O
controller	O
,	O
wait-state	O
generators	O
,	O
serial	O
ports	O
and	O
a	O
DMA	O
controller	O
.	O
</s>
<s>
It	O
uses	O
separate	O
read	O
and	O
write	O
strobes	O
,	O
sharing	O
similar	O
timings	O
with	O
the	O
Z80	B-General_Concept
and	O
Intel	O
processors	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
configure	O
the	O
Z180	B-Device
to	O
operate	O
as	O
the	O
Hitachi	B-General_Concept
HD64180	I-General_Concept
.	O
</s>
<s>
The	O
Zilog	O
Z80182	B-Device
,	O
introduced	O
in	O
1997	O
,	O
is	O
an	O
enhanced	O
,	O
faster	O
version	O
of	O
the	O
older	O
Z80	B-General_Concept
and	O
is	O
part	O
of	O
the	O
Z180	B-Device
microprocessor	B-Architecture
family	O
.	O
</s>
<s>
The	O
Z80182	B-Device
can	O
operate	O
at	O
33MHz	O
with	O
an	O
external	O
oscillator	O
for	O
5-volt	O
operation	O
,	O
or	O
at	O
20MHz	O
using	O
the	O
internal	O
oscillator	O
for	O
3.3-volt	O
operation	O
.	O
</s>
