ZiLOG Z8018 Series, Руководство пользователя

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Z8018x
Family MPU User Manual
UM005004-0918
195
33 t
NMIW
NMI Pulse Width 35 — 25 — ns
34 t
BRS
BUSREQ Set-up Time to PHI Fall 10 — 10 — ns
35 t
BRH
BUSREQ Hold Time from PHI Fall 10 — 10 ns
36 t
BAD1
PHI Rise to BUSACK Fall Delay — 25 — 15 ns
37 t
BAD2
PHI Fall to BUSACK Rise Delay — 25 — 15 ns
38 t
BZD
PHI Rise to Bus Floating Delay Time — 40 — 30 ns
39 t
MEWH
MREQ Pulse Width (High) 35 — 25 — ns
40 t
MEWL
MREQ Pulse Width (Low) 35 — 25 — ns
41 t
RFD1
PHI Rise to RFSH Fall Delay — 20 — 15 ns
42 t
RFD2
PHI Rise to RFSH Rise Delay — 20 — 15 ns
43 t
HAD1
PHI Rise to HALT Fall Delay — 15 — 15 ns
44 t
HAD2
PHI Rise to HALT Rise Delay — 15 — 15 ns
45 t
DRQS
DREQ1 Set-up Time to PHI Rise 20 — 15 — ns
46 t
DRQH
DREQ1 Hold Time from PHI Rise 20 — 15 — ns
47 t
TED1
PHI Fall to TENDi Fall Delay — 25 — 15 ns
48 t
TED2
PHI Fall to TENDi Rise Delay — 25 — 15 ns
49 t
ED1
PHI Rise to E Rise Delay — 30 — 15 ns
50 t
ED2
PHI Fall or Rise to E Fall Delay — 30 — 15 ns
51 P
WEH
E Pulse Width (High) 25 — 20 — ns
52 P
WEL
E Pulse Width (Low) 50 — 40 — ns
53 t
Er
Enable Rise Time — 10 — 10 ns
54 t
Ef
Enable Fall Time — 10 — 10 ns
55 t
TOD
PHI Fall to Timer Output Delay — 75 — 50 ns
Table 31. Z8S180 AC Characteristics (Continued) V
DD
= 5V ±10% or
V
DD
= 3.3V ±10%; 33-MHz Characteristics Apply Only to 5V
No. Symbol Item
Z8S180—20
MHz
Z8S180—33
MHz
Unit Min Max Min Max