STM8AF5178 datasheet(60/110 Pages) STMICROELECTRONICS

60 / 110 page

Electrical characteristics

STM8AF52/62xx, STM8AF51/61xx

60/110

Doc ID 14395 Rev 9

10.3.1

VCAP external capacitor

Stabilization for the main regulator is achieved connecting an external capacitor CEXT to the

VCAP pin. CEXT is specified in Table 26. Care should be taken to limit the series inductance

to less than 15 nH.

Figure 11.

External capacitor CEXT

Legend: ESR is the equivalent series resistance and ESL is the equivalent inductance.

10.3.2

Supply current characteristics

The current consumption is measured as described in Figure 8 on page 56 and Figure 9 on

page 57.

If not explicitly stated, general conditions of temperature and voltage apply.

Table 27.

Operating conditions at power-up/power-down

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

tVDD

VDD rise time rate

—

2(1)

Guaranteed by design, not tested in production.

—

µs/V

VDD fall time rate

—

2(1)

—

tTEMP

Reset release delay

VDD rising

—

Reset generation delay

VDD falling

—

µs

VIT+

Power-on reset

threshold(2)

If VDD is below 3 V, the code execution is guaranteed above the VIT- and VIT+ thresholds. RAM content is

kept. The EEPROM programming sequence must not be initiated.

—

2.65

2.8

2.95

VIT-

Brown-out reset

threshold

—

2.58

2.73

2.88

VHYS(BOR)

Brown-out reset

hysteresis

——

70(1)

Rleak

ESR

ESL

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