Datasheet

STM8S207xx, STM8S208xx Electrical characteristics
Doc ID 14733 Rev 12 57/103
10.3.2 Supply current characteristics
The current consumption is measured as described in Figure 9 on page 51.
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 V
DD
or V
SS
(no load)
● All peripherals are disabled (clock stopped by Peripheral Clock Gating registers) except
if explicitly mentioned.
● When the MCU is clocked at 24 MHz, T
A
≤ 105 °C and the WAITSTATE option bit is set.
Subject to general operating conditions for V
DD
and T
A
.
Table 20. Total current consumption with code execution in run mode at V
DD
= 5 V
Symbol Parameter Conditions Typ Max Unit
I
DD(RUN)
Supply
current in
run mode,
code
executed
from RAM
f
CPU
= f
MASTER
= 24 MHz,
T
A
≤ 105 °C
HSE crystal osc. (24 MHz) 4.4
mA
HSE user ext. clock (24 MHz) 3.7 7.3
(1)
f
CPU
= f
MASTER
= 16 MHz
HSE crystal osc. (16 MHz) 3.3
HSE user ext. clock (16 MHz) 2.7 5.8
HSI RC osc. (16 MHz) 2.5 3.4
f
CPU
= f
MASTER
/128 = 125 kHz
HSE user ext. clock (16 MHz) 1.2 4.1
(1)
HSI RC osc. (16 MHz) 1.0 1.3
(1)
f
CPU
= f
MASTER
/128 = 15.625
kHz
HSI RC osc. (16 MHz/8) 0.55
f
CPU
= f
MASTER
= 128 kHz LSI RC osc. (128 kHz) 0.45
Supply
current in
run mode,
code
executed
from Flash
f
CPU
= f
MASTER
= 24 MHz,
T
A
≤ 105 °C
HSE crystal osc. (24 MHz) 11.4
HSE user ext. clock (24 MHz) 10.8 18
(1)
f
CPU
= f
MASTER
= 16 MHz
HSE crystal osc. (16 MHz) 9.0
HSE user ext. clock (16 MHz) 8.2 15.2
(1)
HSI RC osc.(16 MHz) 8.1 13.2
(1)
f
CPU
= f
MASTER
= 2 MHz. HSI RC osc. (16 MHz/8)
(2)
1.5
f
CPU
= f
MASTER
/128 = 125 kHz HSI RC osc. (16 MHz) 1.1
f
CPU
= f
MASTER
/128 = 15.625
kHz
HSI RC osc. (16 MHz/8) 0.6
f
CPU
= f
MASTER
= 128 kHz LSI RC osc. (128 kHz) 0.55
1. Data based on characterization results, not tested in production.
2. Default clock configuration measured with all peripherals off.