STM8AF6366TCU datasheet(65/116 Pages) STMICROELECTRONICS

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STM8AF6388

Electrical characteristics

114

Current consumption for on-chip peripherals

Table 25. Total current consumption in Halt and Active-halt modes. General conditions for VDD

applied. TA = −40 °C to 55 °C unless otherwise stated

Symbol

Parameter

Conditions

Typ

Max

Unit

Main

voltage

regulator

(MVR)(1)

Flash

mode(2)

Clock source and

temperature condition

IDD(H)

Supply current in

Halt mode

Off

Power-

down

Clocks stopped

105

135(3)

µA

Clocks stopped,

TA = 25 °C

105

125

IDD(AH)

Supply current in

Active-halt mode

with regulator on

Power-

down

External clock 16 MHz

fMASTER = 125 kHz

870

1000(3)

LSI clock 128 kHz

250

330(3)

Supply current in

Active-halt mode

with regulator off

Off

Power-

down

LSI clock 128 kHz

125

142(3)

LSI clock 128 kHz,

TA = 25 °C

125

130

tWU(AH)

Wakeup time from

Active-halt mode

with regulator on

Operating

mode

TA =−40 to 150 °C

30(3)

µs

Wakeup time from

Active-halt mode

with regulator off

Off

80(3)

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

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

3. Guaranteed by characterization results, not tested in production.

Table 26. Oscillator current consumption

Symbol

Parameter

Conditions

Typ

Max(1)

Unit

IDD(OSC)

HSE oscillator current

consumption(2)

Quartz or

ceramic

resonator,

CL = 33 pF

VDD = 5 V

fOSC = 24 MHz

2.0(3)

fOSC = 16 MHz

0.6

fOSC = 8 MHz

0.57

IDD(OSC)

HSE oscillator current

consumption(2)

Quartz or

ceramic

resonator,

CL = 33 pF

VDD = 3.3 V

fOSC = 24 MHz

0.5

1.0(3)

fOSC = 16 MHz

0.25

fOSC = 8 MHz

0.18

1. During startup, the oscillator current consumption may reach 6 mA.

2. The supply current of the oscillator can be further optimized by selecting a high quality resonator with small Rm value. Refer

to crystal manufacturer for more details

3. Informative data.

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