STM8AF6213 datasheet(58/106 Pages) STMICROELECTRONICS

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Electrical characteristics

STM8AF6213/23/23A/26

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DocID025118 Rev 5

9.3.1

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 10. External capacitor CEXT

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

9.3.2

Supply current characteristics

The current consumption is measured as described in Section 4.3: Interrupt controller.

Total current consumption in run mode

The MCU is placed under the following conditions:



All I/O pins in input mode with a static value at VDD or VSS (no load)



All peripherals are disabled (clock stopped by peripheral clock gating registers) except

if explicitly mentioned.

Subject to general operating conditions for VDD and TA.

Unless otherwise specified, data are based on characterization results, and not tested in

production.

Table 28. Total current consumption with code execution in run mode at VDD = 5 V

Symbol

Parameter

Conditions

Typ

Max

Unit

IDD(RUN)

Supply current

in run mode,

code executed

from RAM

fCPU = fMASTER = 16 MHz

HSE crystal osc. (16 MHz)

2.3

HSE user ext. clock (16 MHz)

2.35

HSI RC osc. (16 MHz)

1.7

2(1)

fCPU = fMASTER/128= 125 kHz

HSE user ext. clock (16 MHz)

0.86

HSI RC osc. (16 MHz)

0.7

0.87

fCPU = fMASTER/128=

15.625 kHz

HSI RC osc. (16 MHz/8)

0.46

0.58

fCPU = fMASTER = 28 kHz

LSI RC osc. (128 kHz)

0.41

0.55

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