STM8L051F3 datasheet(53/96 Pages) STMICROELECTRONICS

53 / 96 page

DS9178 Rev 4

53/96

STM8L051F3

Electrical parameters

In the following table, data is based on characterization results, unless otherwise specified.

Table 18. Total current consumption in Wait mode

Symbol Parameter

Conditions(1)

1. All peripherals OFF, VDD from 1.8 V to 3.6 V, HSI internal RC osc. , fCPU = fSYSCLK

Typ

Max

Unit

55°C 85°C

IDD(Wait)

Supply

current in

Wait mode

CPU not

clocked,

all peripherals

OFF,

code executed

from RAM

with Flash in

IDDQ mode(2),

VDD from

1.8 V to 3.6 V

2. Flash is configured in IDDQ mode in Wait mode by setting the EPM or WAITM bit in the Flash_CR1 register.

HSI

fCPU = 125 kHz 0.33

0.39

0.41

fCPU = 1 MHz

0.35

0.41

0.44

fCPU = 4 MHz

0.42

0.51

0.52

fCPU = 8 MHz

0.52

0.57

0.58

fCPU = 16 MHz

0.68

0.76

0.79

HSE external

clock

(fCPU=fHSE)(3)

3. Oscillator bypassed (HSEBYP = 1 in CLK_ECKCR). When configured for external crystal, the HSE

consumption

(IDD HSE) must be added. Refer to Table 28.

fCPU = 125 kHz 0.032 0.056 0.068

fCPU = 1 MHz

0.078 0.121 0.144

fCPU = 4 MHz

0.218 0.26

0.30

fCPU = 8 MHz

0.40

0.52

0.57

fCPU = 16 MHz 0.760 1.01

1.05

LSI

fCPU = fLSI

0.035 0.044 0.046

LSE(4)

external clock

(32.768 kHz)

fCPU = fLSE

0.032 0.036 0.038

IDD(Wait)

Supply

current in

Wait

mode

CPU not

clocked,

all peripherals

OFF,

code executed

from Flash,

VDD from

1.8 V to 3.6 V

HSI

fCPU = 125 kHz 0.38

0.48

0.49

fCPU = 1 MHz

0.41

0.49

0.51

fCPU = 4 MHz

0.50

0.57

0.58

fCPU = 8 MHz

0.60

0.66

0.68

fCPU = 16 MHz

0.79

0.84

0.86

HSE(3)

external clock

(fCPU=HSE)

fCPU = 125 kHz 0.06

0.08

0.09

fCPU = 1 MHz

0.10

0.17

0.18

fCPU = 4 MHz

0.24

0.36

0.39

fCPU = 8 MHz

0.50

0.58

0.61

fCPU = 16 MHz

1.00

1.08

1.14

LSI

fCPU = fLSI

0.055 0.058 0.065

LSE(4)

external clock

(32.768 kHz)

fCPU = fLSE

0.051 0.056 0.060

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