ST52T400 datasheet(74/94 Pages) STMICROELECTRONICS

Teilenummer	ST52T400

Bauteilbeschribung	8-BIT INTELLIGENT CONTROLLER UNIT ICU Timer/PWM, Analog Comparator, Triac/PWM Timer, WDG

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ST52T400/T440/E440/T441

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11.3 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. A lower VDD decreasing fosc (see Figure 11.3). Data illustrated in the figure are characterized but not

tested.

Figure 11.3 fosc Maximum Operating Frequency versus VDD supply (*)

(*) Only digital parts of the device: the Analog Comparator cannot work with supply voltage lower

than 4.5 V.

Table 11.4 Recommended Operating Conditions

Symbol

Parameter

Test Condition

Min.

Typ.

Max

Unit

VDD

Operating Supply

Refer to Figure 11.3

2.7

5.5

VPP

Programming Voltage

11.4

12.6

Output Voltage

VSS

VDD

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 guaranteed in this area

Functionality guaranteed in this area

Vdd (V)

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