ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 53

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

Parameter
Data hold after RD
rising edge
Data float after RD rising
edge
Data valid to WR
Data hold after WR
ALE rising edge after RD,
WR
Address hold after RD, WR
Latched CS setup to ALE
Unlatched CS setup to
ALE
Latched CS low to Valid
Data In
Unlatched CS low to Valid
Data In
Latched CS hold after RD,
WR
Unlatched 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
(with RW delay)
Address float after RdCS
(no RW delay)
12))
1
1
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
18
19
22
23
25
27
38
38u
39
39u
40
40u
42
43
44
45
SR 0
SR –
CC 13 +
CC 13 +
CC 10 +
CC 10 +
CC -7 +
CC 3 +
SR –
SR –
CC 20 +
CC 10 +
CC 7 +
CC -3 +
CC –
CC –
Table 17 Multiplexed bus
Max. CPU Clock
= 50 MHz
min.
t
t
A
A
t
t
t
t
t
t
t
t
A
A
C
F
F
F
F
F
ST10R272L - ELECTRICAL CHARACTERISTICS
max.
–
15 +
–
–
–
–
3 +
–
13
+
23
+
–
–
–
–
3
13
1
t
t
1
C
C
t
A
+ 2
+ 2
t
F
2
t
t
A
A
Variable CPU Clock
1/2TCL = 1 to 50 MHz
min.
0
–
2TCL - 7 +
2TCL - 7+
2TCL - 10 +
2TCL - 10 +
-7 +
TCL - 7 +
–
–
3TCL - 10 +
2TCL - 10 +
TCL - 3 +
-3 +
–
–
t
t
A
A
t
t
t
A
A
t
F
C
t
t
t
t
F
F
F
F
max.
–
2TCL - 5 +
–
–
–
–
3 +
–
3TCL - 17
+
4TCL - 17
+
–
–
–
–
3
TCL + 3
1
t
t
C
C
t
A
+ 2
+ 2
t
t
1
A
A
t
F
2
53/77
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1