Electrical characteristics
STM8S207xx, STM8S208xx
Total current consumption in wait mode
Table 22. Total current consumption in wait mode at V = 5 V
DD
Symbol Parameter
Conditions
HSE crystal osc. (24 MHz)
HSE user ext. clock (24 MHz)
Typ Max(1) Unit
2.4
1.8
2.0
1.4
1.2
1.0
fCPU = fMASTER = 24 MHz,
TA ≤ 105 °C
4.7
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
fCPU = fMASTER = 16 MHz
4.4
1.6
Supply
IDD(WFI) current in
wait mode
mA
f
CPU = fMASTER/128 = 125 kHz
HSI RC osc. (16 MHz)
fCPU = fMASTER/128 = 15.625
kHz
HSI RC osc. (16 MHz/8)(2)
LSI RC osc. (128 kHz)
0.55
0.5
fCPU = fMASTER = 128 kHz
1. Data based on characterization results, not tested in production.
2. Default clock configuration measured with all peripherals off.
Table 23. Total current consumption in wait mode at V = 3.3 V
DD
Symbol Parameter
Conditions
HSE crystal osc. (24 MHz)
Typ Max(1) Unit
2.0
fCPU = fMASTER = 24 MHz,
TA ≤ 105 °C
HSE user ext. clock (24 MHz)
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
1.8
1.6
1.4
1.2
1.0
4.7
fCPU = fMASTER = 16 MHz
4.4
1.6
Supply
IDD(WFI) current in
wait mode
mA
fCPU = fMASTER/128 = 125 kHz
HSI RC osc. (16 MHz)
fCPU = fMASTER/128 = 15.625
kHz
HSI RC osc. (16 MHz/8)(2)
0.55
0.5
fCPU = fMASTER/128 = 15.625
kHz
LSI RC osc. (128 kHz)
1. Data based on characterization results, not tested in production.
2. Default clock configuration measured with all peripherals off.
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Doc ID 14733 Rev 9
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