STM8S003K3 datasheet(49/100 Pages) STMICROELECTRONICS

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Operating conditions

9.3

Table 18: General operating conditions

Unit

Max

Min

Conditions

Parameter

Symbol

MHz

Internal CPU clock frequency

fCPU

5.5

2.95

Standard operating voltage

VDD

3300

470

CEXT: capacitance of

external capacitor

VCAP

(1)

0.3

at 1 MHz

(2)

ESR of external

capacitor

ESL of external

capacitor

238

TSSOP20

Power dissipation at TA = 85 °C

for suffix 6

(3)

220

UFQFPN20

330

LQFP32

°C

-40

Maximum power dissipation

Ambient temperature for 6 suffix

version

105

-40

Junction temperature range for

suffix 6

(1)Care should be taken when selecting the capacitor, due to its tolerance, as well as the parameter

dependency on temperature, DC bias and frequency in addition to other factors. The parameter maximum

value must be respected for the full application range.

(2)This frequency of 1 MHz as a condition for VCAP parameters is given by design of internal regulator.

(3)To calculate P

Dmax(TA), use the formula PDmax =(TJmax- TA)/ΘJA (see Thermal characteristics ) with the

value for TJmax given in the previous table and the value for ΘJA given in Thermal characteristics.

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DocID018576 Rev 3

Electrical characteristics

STM8S003K3 STM8S003F3

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