STM8S007C8 datasheet(46/92 Pages) STMICROELECTRONICS

46 / 92 page

Electrical characteristics

STM8S007C8

46/92

DocID022171 Rev 5

9.3

Operating conditions

The device must be used in operating conditions that respect the parameters in Table 16. In

addition, full account must be taken of all physical capacitor characteristics and tolerances.

Table 16. General operating conditions

Symbol

Parameter

Conditions

Min

Max

Unit

fCPU

Internal CPU clock frequency

-0

MHz

-0

VDD/VDD_IO Standard operating voltage

2.95

5.5

VCAP

(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

specifications must be respected for the full application range.

CEXT: capacitance of external

capacitor

470

3300

ESR of external capacitor

At 1 MHz(2)

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

-0.3

ohm

ESL of external capacitor

(3)

To calculate PDmax(TA), use the formula PDmax = (TJmax - TA)/JA (see Section 10.2: Thermal

characteristics on page 86) with the value for TJmax given in Table 16 above and the value for JA given in

Table 50: Thermal characteristics.

Power dissipation at



TA = 85° C for suffix 6

48-pin devices, with output

on eight standard ports, two

high sink ports and two open

drain ports simultaneously(4)

Refer to Section 10.2: Thermal characteristics on page 86 for the calculation method.

443

Ambient temperature for 6

suffix version

Maximum power dissipation

-40

°C

Junction temperature range

-40

105

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