Electrical characteristics
STM8S903K3 STM8S903F3
Max(1)
Symbol
Parameter
Conditions
Typ
Unit
fCPU = fMASTER/128 =
125 kHz
HSI RC osc. (16 MHz)
HSI RC osc. (16 MHz/8)
LSI RC osc. (128 kHz)
0.72
0.9
fCPU = fMASTER/128 =
15.625 kHz
0.46
0.42
0.58
0.57
fCPU = fMASTER
128 kHz
=
(1) Data based on characterization results, not tested in production.
(2) Default clock configuration measured with all peripherals off.
Table 24: Total current consumption with code execution in run mode at VDD = 3.3 V
Symbol Parameter
Conditions
Typ
Unit
Max(1)
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
1.8
-
2.3
2
fCPU = fMASTER
16 MHz
=
2
1.5
0.81
0.7
fCPU = fMASTER
/
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
-
Supply current
in run mode,
code executed
from RAM
128 = 125 kHz
0.87
fCPU = fMASTER
/
HSI RC osc. (16 MHz/8)
LSI RC osc. (128 kHz)
0.46
0.41
0.58
0.55
128 = 15.625 kHz
fCPU = fMASTER
128 kHz
=
=
=
IDD(RUN)
mA
HSE crystal osc. (16 MHz)
HSE user ext. clock (16 MHz)
HSI RC osc. (16 MHz)
4
-
fCPU = fMASTER
16 MHz
3.9
3.7
4.7
4.5
Supply current
in run mode,
code executed
from Flash
fCPU = fMASTER
2 MHz
HSI RC osc. (16 MHz/8)(2)
0.84
1.05
fCPU = fMASTER
/
HSI RC osc. (16 MHz)
HSI RC osc. (16 MHz/8)
0.72
0.46
0.9
128 = 125 kHz
fCPU = fMASTER
/
0.58
56/116
DocID15590 Rev 8
STMICROELECTRONICS [ ST ]
