Datasheet

DocID14771 Rev 15 59/121
STM8S105x4/6 Electrical characteristics
90
Total current consumption in active halt mode
Table 23. Total current consumption in wait mode at V
DD
= 3.3 V
Symbol Parameter Conditions Typ
Max
(1)
Unit
I
DD(WFI)
Supply
current in
wait mode
f
CPU
= f
MASTER
= 16 MHz
HSE crystal osc. (16 MHz) 1.75 -
mA
HSE user ext. clock
(16 MHz)
1.55 2.0
HSI RC osc. (16 MHz) 1.5 1.9
f
CPU
= f
MASTER
/128 = 125 kHz HSI RC osc. (16 MHz) 1.3 -
f
CPU
= f
MASTER
/s128 =
15.625 kHz
HSI RC osc. (16 MHz/8)
(2)
0.7 -
f
CPU
= f
MASTER
= 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 V
DD
= 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
I
DD(AH)
Supply
current in
active halt
mode
On
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) 68 120 220
Power down
mode
LSI RC osc. (128 kHz) 12 60 150
1. 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.