ST10F271E STMICROELECTRONICS [STMicroelectronics], ST10F271E Datasheet - Page 164
ST10F271E
Manufacturer Part Number
ST10F271E
Description
16-bit MCU with 128 Kbyte Flash memory and 8/12 Kbyte RAM
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST10F271E.pdf
(180 pages)
- Current page: 164 of 180
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Electrical characteristics
Table 78.
164/180
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
38
39
41
82
83
46
47
48
49
50
51
53
68
55
57
Symbol
CC
SR
CC
CC
CC
SR
SR
CC
CC
CC
SR
SR
SR
CC
CC
ALE falling edge to Latched
CS
Latched CS low to Valid Data
In
Latched CS hold after RD,
WR
Address setup to RdCS,
WrCS
(with RW-delay)
Address setup to RdCS,
WrCS
(no RW-delay)
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 RdCS
(with RW-delay)
Data float after RdCS
(no RW-delay)
Address hold after
RdCS, WrCS
Data hold after WrCS
Demultiplexed bus timings (continued)
1. RW-delay and t
2. Read data are latched with the same clock edge that triggers the address change and the rising RD edge.
3. Partially tested, guaranteed by design characterization.
Therefore address changes before the end of RD have no impact on read cycles.
Parameter
3
3
A
refer to the next following bus cycle.
– 8.5 + t
15.5 + t
14 + 2t
– 4 – t
2 + 2t
28 + t
10 + t
2 + t
2 + t
min.
F
–
–
–
0
–
–
TCL = 12.5 ns
CPU
F
F
A
C
C
A
A
C
F
= 40 MHz
+ t
16.5 + t
16.5 + t
16.5 +
4 + t
6 – t
4 + t
max.
C
–
–
–
–
–
–
–
–
–
+ 2t
A
C
F
C
F
A
2TCL – 11 + 2t
TCL –10.5 + 2t
2TCL – 9.5 + t
3TCL – 9.5 + t
TCL – 10.5 + t
TCL – 10.5 + t
2TCL – 15 + t
– 8.5 + t
– 4 – t
min.
1/2 TCL = 1 to 64MHz
Variable CPU Clock
–
–
–
0
–
–
A
F
C
C
C
ST10F271B/ST10F271E
F
F
A
A
2TCL – 8.5 + t
2TCL – 21 + t
3TCL – 21 + t
TCL – 8.5 + t
3TCL – 21 +
+ t
6 – t
max.
C
–
–
–
–
–
–
–
–
–
+ 2t
A
A
F
C
C
F
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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