STM8S105C4 datasheet(59/121 Pages) STMICROELECTRONICS

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DocID14771 Rev 15

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STM8S105x4/6

Electrical characteristics

Total current consumption in active halt mode

Table 23. Total current consumption in wait mode at VDD = 3.3 V

Symbol

Parameter

Conditions

Typ

Max(1)

Unit

IDD(WFI)

Supply

current in

wait mode

fCPU = fMASTER = 16 MHz

HSE crystal osc. (16 MHz)

1.75

HSE user ext. clock

(16 MHz)

1.55

2.0

HSI RC osc. (16 MHz)

1.5

1.9

fCPU = fMASTER /128 = 125 kHz HSI RC osc. (16 MHz)

1.3

fCPU = fMASTER /s128 =

15.625 kHz

HSI RC osc. (16 MHz/8)(2)

0.7

fCPU = fMASTER = 128 kHz

LSI RC osc. (128 kHz)

0.5

1. Data based on characterization results, not tested in production.

2. Default clock configuration measured with all peripherals off.

Table 24. Total current consumption in active halt mode at VDD = 5 V

Symbol

Parameter

Conditions

Typ

Max at

85 °C(1)

Max at

85 °C(1)

Unit

Main

voltage

regulator

(MVR)(2)

Flash mode(3)

Clock source

IDD(AH)

Supply

current in

active halt

mode

Operating mode

HSE crystal osc.

(16 MHz)

1080

µA

Operating mode

LSI RC osc. (128 kHz)

200

320

400

Power down

mode

HSE crystal osc.

(16 MHz)

1030

Power down

mode

LSI RC osc. (128 kHz)

140

270

350

Off

Operating mode

LSI RC osc. (128 kHz)

120

220

Power down

mode

LSI RC osc. (128 kHz)

150

Data based on characterization results, not tested in production.

2. Configured by the REGAH bit in the CLK_ICKR register.

3. Configured by the AHALT bit in the FLASH_CR1 register.

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