st52t430 STMicroelectronics, st52t430 Datasheet - Page 70

• Manufacturer Part Number: st52t430
• Description: 8-bit Intelligent Controller Unit Icu Three Timer/pwms, Adc, Sci
• Manufacturer: STMicroelectronics

12.3 Recommended Operating Condition
Operating condition: V
Table 12.4 Recommended Operating Conditions
Notes:
1. It is reccomendend to insert a capacitor beetwen V
2. In order to use SCI correctly maintaining the programmed baud rates, fosc must be set to 5, 10 or 20
3. A lower V
Figure 12.3 fosc Maximum Operating Frequency versus VDD supply
70/88
f
Symbol
comended values are 10 F (electrolytic or tantalum) and/or 100 nF (ceramic).
Mhz.
tested.
OSC
V
V
V
V
DD
V
DDA,
SSA
PP
O
1)2)
2)
20
18
16
14
12
10
8
6
4
2
0
DD
0
Analog Supply Voltage
Programming Voltage
Oscillator Frequency
decreasing f
Operating Supply
Output Voltage
Analog Ground
Functionality not guarateed in this area
Parameter
0.5
DD
=5V 10%; T
osc
1
(see Figure 12.3). Data illustrated in the figure are characterized but not
1.5
A
=0/125 C (unless otherwise specified).
Refer to Figure 12.3
Test Condition
2
Vdd (V)
2.5
DD
3
and V
Functionality not guarateed in this area
V
V
Functionality guarateed in this area
DD
SS
Min.
SS
11.4
V
3.5
3.5
2
SS
-0.3
-0.3
for improving noise rejection. Rec-
4
Typ.
V
V
12
DD
SS
4.5
V
V
DD
SS
Max
12.6
V
5.5
20
DD
+0.3
+0.3
5
5.5
MHz
Unit
V