ST52X430 datasheet(70/88 Pages) STMICROELECTRONICS

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ST52T430/E430

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12.3 Recommended Operating Condition

Operating condition: VDD=5V

±10%; TA=0/125°C (unless otherwise specified).

Notes:

1. It is reccomendend to insert a capacitor beetwen VDD and VSS for improving noise rejection. Rec-

comended values are 10

µF (electrolytic or tantalum) and/or 100 nF (ceramic).

2. In order to use SCI correctly maintaining the programmed baud rates, fosc must be set to 5, 10 or 20

Mhz.

3. A lower VDD decreasing fosc (see Figure 12.3). Data illustrated in the figure are characterized but not

tested.

Figure 12.3 fosc Maximum Operating Frequency versus VDD supply

Table 12.4 Recommended Operating Conditions

Symbol

Parameter

Test Condition

Min.

Typ.

Max

Unit

VDD

Operating Supply

Refer to Figure 12.3

3.5

5.5

VPP

Programming Voltage

11.4

12.6

Output Voltage

VSS

VDD

VDDA,

Analog Supply Voltage

VDD-0.3

VDD

VDD+0.3

VSSA

Analog Ground

VSS-0.3

VSS

VSS+0.3

fOSC

1)2)

Oscillator Frequency

MHz

0.5

1.5

2.5

3.5

4.5

5.5

Functionality not guarateed in this area

Functionality guarateed in this area

Vdd (V)

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