ST10F271E STMICROELECTRONICS [STMicroelectronics], ST10F271E Datasheet - Page 158

• Manufacturer Part Number: ST10F271E
• Description: 16-bit MCU with 128 Kbyte Flash memory and 8/12 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
Table 77.
158/180
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
39
40
42
43
44
45
46
47
48
49
50
51
52
54
56
Symbol
SR
CC
CC
CC
CC
CC
SR
SR
CC
CC
CC
SR
SR
CC
CC
Multiplexed bus timings (continued)
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
Address float after RdCS,
WrCS (no RW
RdCS to Valid Data In
(with RW delay)
RdCS to Valid Data In
(no RW delay)
RdCS, WrCS Low Time
(with RW delay)
RdCS, WrCS Low Time
(no RW delay)
Data valid to WrCS
Data hold after RdCS
Data float after
Address hold after
RdCS, WrCS
Data hold after WrCS
Parameter
delay)1
RdCS1
delay)1
– 5.5 + t
15.5 + t
28 + t
10 + t
27 + t
7 + t
6 + t
6 + t
min.
F
–
–
–
–
–
0
–
TCL = 12.5 ns
CPU
A
F
F
C
C
F
C
A
= 40 MHz
16.5 + t
16.5 + t
16.5 + t
4 + t
max.
+ 2t
1.5
14
–
–
–
–
–
–
–
–
–
A
C
C
C
F
+
3TCL – 10.5 + t
2TCL – 9.5 + t
3TCL – 9.5 + t
2TCL – 15 + t
2TCL – 19 + t
2TCL – 19 + t
TCL – 5.5 + t
– 5.5 + t
min.
1/2 TCL = 1 to 64MHz
Variable CPU Clock
–
–
–
–
–
0
–
A
A
C
F
F
C
C
ST10F271B/ST10F271E
F
2TCL – 8.5 + t
2TCL – 21 + t
3TCL – 21 + t
3TCL – 21 +
TCL + 1.5
+ t
max.
C
1.5
–
–
–
–
–
–
–
–
–
+ 2t
A
C
C
F
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns