ST10 STMICROELECTRONICS [STMicroelectronics], ST10 Datasheet - Page 46

• Manufacturer Part Number: ST10
• Description: 16-BIT MCU WITH 32K BYTE ROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10C167
XX - ELECTRICAL CHARACTERISTICS (continued)
Table 18 : Multiplexed bus characteristics (continued)
46/65
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
10
19
44
45
11
12
13
14
15
16
17
18
22
23
25
27
38
39
40
42
43
46
47
Symbol
1
1
1
1
1
CC
CC
CC
CC
SR
SR
SR
SR
SR
SR
CC
CC
CC
CC
CC
SR
CC
CC
CC
CC
CC
SR
SR
Address float after RD, WR
(with RW-delay)
Address float after RD, WR (no
RW-delay)
RD, WR low time (with RW-delay)
RD, WR low time (no RW-delay)
RD to valid data in (with
RW-delay)
RD to valid data in (no RW-delay)
ALE low to valid data in
Address/Unlatched CS to valid
data in
Data hold after RD rising edge
Data float after RD
Data valid to WR
Data hold after WR
ALE rising edge after RD, WR
Address/Unlatched CS hold after
RD, WR
ALE falling edge to Latched CS
Latched CS low to valid data in
Latched CS hold after RD, WR
ALE fall. edge to RdCS, WrCS
(with RW delay)
ALE fall. edge to RdCS, WrCS
(no RW delay)
Address float after RdCS, WrCS
(with RW delay)
Address float after RdCS, WrCS
(no RW delay)
RdCS to Valid Data In (with RW
delay)
RdCS to Valid Data In (no RW
delay)
Parameter
30 + t
50 + t
20 + t
16 + t
26 + t
26 + t
26 + t
46 + t
-4 + t
-4 - t
Min.
Max. CPU Clock
–
–
–
–
–
0
–
–
–
–
–
–
–
A
A
C
C
C
F
F
F
F
A
= 25MHz
50 + 2t
40 + t
40 + t
20 + t
40 + t
26 + t
16 + t
36 + t
10 - t
Max.
26
20
C
6
–
–
–
–
–
–
–
–
–
–
0
A
A
+ 2t
+ t
A
C
C
F
C
C
+ t
C
C
A
2TCL - 10 + t
3TCL - 10 + t
2TCL - 20 + t
2TCL - 14 + t
2TCL - 14 + t
2TCL - 14 + t
3TCL - 14 + t
TCL - 4 + t
-4 + t
-4 - t
Min.
1/2TCL = 1 to 25MHz
Variable CPU Clock
–
–
–
–
–
–
0
–
–
–
–
–
–
A
A
A
C
C
C
F
F
F
F
2TCL - 24 + t
3TCL - 24 + t
2TCL - 14 + t
2TCL - 20+ t
3TCL - 20+ t
3TCL - 20
4TCL - 30
+ 2t
3TCL - 20
+ t
+ t
TCL + 6
10 - t
Max.
C
TCL
A
A
6
–
–
–
–
–
–
–
–
–
–
0
+ 2t
+ t
+ t
A
C
C
A
C
C
F
C
C
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns