Z8S180 Zilog., Z8S180 Datasheet - Page 210

• Manufacturer Part Number: Z8S180
• Description: ENHANCED Z180 MICROPROCESSOR
• Manufacturer: Zilog.

No.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Symbol Item
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
P
P
t
t
t
NMIW
BRS
BRH
BAD1
BAD2
BZD
MEWH
MEWL
RFD1
RFD2
HAD1
HAD2
DRQS
DRQH
TED1
TED2
ED1
ED2
Er
Ef
TOD
WEH
WEL
Table 31. Z8S180 AC Characteristics (Continued) V
NMI Pulse Width
BUSREQ Set-up Time to PHI Fall
BUSREQ Hold Time from PHI Fall
PHI Rise to BUSACK Fall Delay
PHI Fall to BUSACK Rise Delay
PHI Rise to Bus Floating Delay Time —
MREQ Pulse Width (High)
MREQ Pulse Width (Low)
PHI Rise to RFSH Fall Delay
PHI Rise to RFSH Rise Delay
PHI Rise to HALT Fall Delay
PHI Rise to HALT Rise Delay
DREQ1 Set-up Time to PHI Rise
DREQ1 Hold Time from PHI Rise
PHI Fall to TENDi Fall Delay
PHI Fall to TENDi Rise Delay
PHI Rise to E Rise Delay
PHI Fall or Rise to E Fall Delay
E Pulse Width (High)
E Pulse Width (Low)
Enable Rise Time
Enable Fall Time
PHI Fall to Timer Output Delay
V
DD
= 3.3V ±10%; 33-MHz Characteristics Apply Only to 5V
Min
35
10
10
—
—
35
35
—
—
—
—
20
20
—
—
—
—
25
50
—
—
—
Z8S180— 20
MHz
Max
—
—
—
25
25
40
—
—
20
20
15
15
—
—
25
25
30
30
—
—
10
10
75
MPU User Manual
Min
25
10
10
—
—
—
25
25
—
—
—
—
15
15
—
—
—
—
20
40
—
—
—
UM005001-ZMP0400
Z8S180— 33
DD
Z8018x Family
MHz
= 5V ±10% or
Max
—
—
15
15
30
—
—
15
15
15
15
—
—
15
15
15
15
—
—
10
10
50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
195