83C166 Siemens Semiconductor Group, 83C166 Datasheet - Page 42

• Manufacturer Part Number: 83C166
• Description: 16-Bit CMOS Single-Chip Microcontroller
• Manufacturer: Siemens Semiconductor Group

AC Characteristics (cont’d)
Demultiplexed Bus
V
T
T
C
ALE cycle time = 4 TCL + 2
Parameter
ALE high time
Address setup to ALE
ALE falling edge to RD,
WR (with RW-delay)
ALE falling edge to RD,
WR (no RW-delay)
RD, WR low time
RD, WR low time
RD to valid data in
RD to valid data in
ALE low to valid data in
Address to valid data in
Data hold after RD
rising edge
Data float after RD rising
edge (with RW-delay)
Data float after RD rising
edge (no RW-delay)
Data valid to WR
Data hold after WR
Semiconductor Group
(with RW-delay)
(no RW-delay)
(with RW-delay)
(no RW-delay)
A
A
CC
L
= 0 to +70 ˚C
= -40 to +85 ˚C
(for Port 0, Port 1, Port 4, ALE, RD, WR, BHE, CLKOUT) = 100 pF
= 5 V
10 %;
V
for SAB 83C166-5M, SAB 80C166-M
for SAB 83C166-5M-T3, SAB 80C166-M-T3
SS
= 0 V
t
A
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
5
6
8
9
12
13
14
15
16
17
18
20
21
22
24
+
t
C
CC 15 +
CC 10 +
CC 15 +
CC -10 +
CC 40 +
CC 65 +
CC 35 +
CC 15 +
SR –
SR –
SR –
SR –
SR 0
SR –
SR –
+
t
F
(100 ns at 20-MHz CPU clock without waitstates)
min.
Max. CPU Clock
t
t
t
t
t
t
t
A
A
A
C
C
C
F
t
= 20 MHz
A
41
max.
–
–
–
–
–
–
30 +
55 +
55
+
75
+ 2
–
35 +
15 +
–
–
t
A
t
A
+
t
t
t
t
+
C
C
F
F
t
C
t
C
min.
TCL - 10 +
TCL - 15 +
TCL - 10
+
-10
+
2TCL - 10
+
3TCL - 10
+
–
–
–
–
0
–
–
2TCL - 15
+
TCL - 10 +
t
t
t
t
t
A
A
C
C
C
1/2TCL = 1 to 20 MHz
Variable CPU Clock
SAB 80C166/83C166
t
t
t
A
A
F
max.
–
–
–
–
–
–
2TCL - 20
+
3TCL - 20
+
3TCL - 20
+
4TCL - 25
+ 2
–
2TCL - 15
+
TCL - 10
+
–
–
t
t
t
t
t
C
C
A
F
F
t
A
+
+
t
C
t
C
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns