ST52T400 查看數據表（PDF） - STMicroelectronics

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ST52T400

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

STMicroelectronics 

ST52T400/T440/E440/T441

11.3 Recommended Operating Condition

Operating condition: VDD=5V±10%; TA=0/125°C (unless otherwise specified).

Table 11.4 Recommended Operating Conditions

Symbol

VDD 2)

VPP

VO

VSSA

fOSC 1)2)

Parameter

Operating Supply

Programming Voltage

Output Voltage

Analog Ground

Oscillator Frequency

Test Condition

Refer to Figure 11.3

Min.

2.7

11.4

VSS

VSS-0.3

1

Typ.

12

VSS

Max

5.5

12.6

VDD

VSS+0.3

20

Unit

V

MHz

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 (*)

20

18

16

14

12

10

8

6

4

2

0

0

Functionality not guaranteed in this area

Functionality guaranteed in this area

Functionality not guaranteed in this area

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

Vdd (V)

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

than 4.5 V.

74/94

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