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Z80180/Z8S180/Z8L180
Enhanced Z180 Microprocessor
Zilog
DS971800401
P R E L I M I N A R Y
1-25
1
AC CHARACTERISTICS
V
cc
= 5V + 10%, V
ss
= 0V, T
A
- 0 to +70
°
C, unless otherwise noted.
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Symbol Item
t
cyc
t
CHW
t
CLW
t
cf
t
cr
t
AD
t
AS
t
MED1
t
RDD1
Z80180-6
Z80180-8
Z80180-10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Min.
162
65
65
–
–
–
30
–
–
–
–
35
Max.
2000
–
–
15
15
90
–
60
60
65
80
–
Min.
125
50
50
–
–
–
20
–
–
–
–
20
Max.
2000
–
–
15
15
80
–
50
50
60
70
–
Min.
100
40
40
–
–
–
10
–
–
–
–
10
Max.
2000
–
–
10
10
70
–
50
50
55
60
–
Clock Cycle Time
Clock “H” Pulse Width
Clock “L” Pulse Width
Clock Fall Time
Clock Rise Time
Rise to Address Valid Delay
Address Valid to /MREQ Fall or /IORQ
Fall)
Fall to /MREQ Fall
Delay
Fall to /RD Fall
Delay /IOC = 1
Rise to /RD Rise
Delay /IOC = 0
Rise to /M1 Fall
Delay
Address Hold Time from
(/MREQ, /IOREQ, /RD, /WR)
Fall to /MREQ Rise
Delay
Fall to /RD Rise
Delay
Rise to /M1 Rise
Delay
Data Read Set-up Time
Data Read Hold Time
Fall to ST Fall
Delay
Fall to ST Rise
Delay
/WAIT Set-up Time to Fall
/WAIT Hold Time from Fall
Rise to Data Float Delay
Rise to /WR Fall
Delay
Fall to Write Data Delay Time
Write Data Set-up Time to /WR Fall
Fall to /WR Rise
Delay
/WR Pulse Width
/WR Pulse Width (I/O Write Cycle)
Write Data Hold Time from (/WR Rise
)
Fall to /IORQ Fall
Delay /IOC = 1
Rise to /IORQ Fall
Delay /IOC = 1
Fall to /IORQ Rise
Delay
/M1 Fall to /IORQ Fall
Delay
/INT Set-up Time to Fall
/INT Hold Time from Fall
/NMI Pulse Width
/BUSREQ Set-up Time to Fall
/BUSREQ Hold Time from Fall
Rise to /BUSACK Fall
Delay
Fall to /BUSACK Rise
Delay
Rise to Bus Floating Delay Time
/MREQ Pulse Width (HIGH)
10.
11.
t
M1D1
t
AH
ns
ns
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
26a.
27.
28.
t
MED2
t
RDD2
t
M1D2
t
DRS
t
DRH
t
STD1
t
STD2
t
WS
t
WH
t
WDZ
t
WRD1
t
WDD
t
WDS
t
WRD2
t
WRP
–
–
–
40
0
–
–
40
40
–
–
–
40
–
170
332
40
–
–
–
340
40
40
120
40
40
–
–
–
110
60
60
80
–
–
90
90
–
–
95
65
90
–
80
–
–
–
60
65
60
–
–
–
–
–
–
95
90
125
–
–
–
–
30
0
–
–
40
40
–
–
–
20
–
130
255
15
–
–
–
250
40
40
100
40
40
–
–
–
90
50
50
70*
–
–
70
70
–
–
70
60
80
–
60
–
–
–
50
60
50
–
–
–
–
–
–
–
–
25
0
–
–
30
30
–
–
–
15
–
110
210
10
–
–
–
200
30
30
80
30
30
–
–
–
70
50
50
60
–
–
60
60
–
–
60
50
60
–
50
–
–
–
50
55
50
–
–
–
–
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
WDH
t
IOD1
ns
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
t
IOD2
t
IOD3
t
INTS
t
INTS
t
NMIW
t
BRS
t
BRH
t
BAD1
t
BAD2
t
BZD
t
MEWH
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
70
70
90
–
60
60
80
–