STM8S903K3 STM8S903F3
Electrical characteristics
Figure 11: External capacitor CEXT
C
ESR
ESL
Rleak
1. ESR is the equivalent series resistance and ESL is the equivalent inductance.
10.3.2
Supply current characteristics
The current consumption is measured as described in Pin input voltage.
10.3.2.1 Total current consumption in run mode
The MCU is placed under the following conditions:
All I/O pins in input mode with a static value at VDD or VSS (no load)
•
All peripherals are disabled (clock stopped by peripheral clock gating registers) except if
explicitly mentioned.
•
Subject to general operating conditions for VDD and TA.
Table 23: Total current consumption with code execution in run mode at VDD = 5 V
Max(1)
Symbol
Parameter
Conditions
Typ
Unit
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
2.3
2
-
2.35
2
fCPU = fMASTER
16 MHz
=
1.7
fCPU = fMASTER/128 = HSE user ext. clock (16 MHz) 0.86
125 kHz
-
Supply current
in run mode,
code executed
from RAM
HSI RC osc. (16 MHz)
0.7
0.87
fCPU = fMASTER/128 =
15.625 kHz
IDD(RUN)
HSI RC osc. (16 MHz/8)
0.46
0.58
0.55
mA
fCPU = fMASTER
128 kHz
=
=
=
LSI RC osc. (128 kHz)
0.41
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
4.5
4.3
3.7
-
Supply current
in run mode,
code executed
from Flash
fCPU = fMASTER
16 MHz
4.75
4.5
Supply current fCPU = fMASTER
HSI RC osc. (16 MHz/8)(2)
0.84
1.05
in run mode,
code executed
IDD(RUN)
2 MHz
mA
from Flash
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