Z8S18020VEC Zilog, Z8S18020VEC Datasheet - Page 18
Z8S18020VEC
Manufacturer Part Number
Z8S18020VEC
Description
IC Z180 MPU 68-PLCC
Manufacturer
Zilog
Datasheet
1.Z8S18010PSG.pdf
(71 pages)
Specifications of Z8S18020VEC
Processor Type
Z180
Features
Enhanced Z180
Speed
20MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
68-LCC (J-Lead)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3109
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8S18020VEC
Manufacturer:
ZILOG
Quantity:
445
Company:
Part Number:
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Part Number:
Z8S18020VEC1960
Manufacturer:
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Quantity:
1 940
porary assertion of the
a
When
peripheral(s), those same device(s) may require a pulse on
the function being programmed.
When
as the Z64180 (Figure 11).
1
after programming certain of their registers to complete
and is set to
and
=
is set to
1
signals. The bit is set to
, the
1
0
during
to accommodate certain external Z80
and
This bit controls the timing of the
signal. It is always read back as
signals function the same
This bit controls the tem-
.
1
by
.
For example, when a control word is written to the Z80 PIO
to enable interrupts, no enable actually takes place until the
PIO sees an active
change in the operation of the
its function. When
ing the next opcode fetch cycle regardless of the state pro-
grammed into the
tary (one time) and it is not necessary to preprogram a
to disable the function (see Figure 10).
signal. When
bit. This condition is only momen-
=
0
, the
signal, and
output is asserted dur-
=
1
, there is no
controls
ZiLOG
1