Datasheet

DS12167 Rev 4 55/94
STM8L050J3 Electrical parameters
87
In the following table, data is based on characterization results, unless otherwise specified.
Table 18. Total current consumption in Wait mode
Symbol Parameter
Conditions
(1)
Typ
Max
Unit
55°C
85°C
125°C
I
DD(Wait)
Supply
current in
Wait mode
CPU not
clocked,
all peripherals
OFF,
code executed
from RAM
with Flash in
I
DDQ
mode
(2)
,
V
DD
from
1.8 V to 3.6 V
HSI
f
CPU
= 125 kHz
0.33 0.39 0.41 0.45
mA
f
CPU
= 1 MHz
0.35 0.41 0.44 0.48
f
CPU
= 4 MHz
0.42 0.51 0.52 0.58
f
CPU
= 8 MHz
0.52 0.57 0.58 0.62
f
CPU
= 16 MHz
0.68 0.76 0.79 0.85
HSE external
clock
(f
CPU
=f
HSE
)
(3)
f
CPU
= 125 kHz
0.032 0.056 0.068 0.093
f
CPU
= 1 MHz
0.078 0.121 0.144 0.197
f
CPU
= 4 MHz
0.218 0.26 0.30 0.40
f
CPU
= 8 MHz
0.40 0.52 0.57 0.66
f
CPU
= 16 MHz
0.760 1.01 1.05 1.16
LSI
f
CPU
= f
LSI
0.035 0.044 0.046 0.054
LSE
(4)
external clock
(32.768 kHz)
f
CPU
= f
LSE
0.032 0.036 0.038 0.051
I
DD(Wait)
Supply
current in
Wait
mode
CPU not
clocked,
all peripherals
OFF,
code executed
from Flash,
V
DD
from
1.8 V to 3.6 V
HSI
f
CPU
= 125 kHz
0.38 0.48 0.49 0.56
mA
f
CPU
= 1 MHz
0.41 0.49 0.51 0.59
f
CPU
= 4 MHz
0.50 0.57 0.58 0.66
f
CPU
= 8 MHz
0.60 0.66 0.68 0.74
f
CPU
= 16 MHz
0.79 0.84 0.86 0.90
HSE
(3)
external clock
(f
CPU
=HSE)
f
CPU
= 125 kHz
0.06 0.08 0.09 0.12
f
CPU
= 1 MHz
0.10 0.17 0.18 0.22
f
CPU
= 4 MHz
0.24 0.36 0.39 0.44
f
CPU
= 8 MHz
0.50 0.58 0.61 0.64
f
CPU
= 16 MHz
1.00 1.08 1.14 1.18
LSI
f
CPU
= f
LSI
0.055 0.058 0.065 0.080
LSE
(5)
external clock
(32.768 kHz)
f
CPU
= f
LSE
0.051 0.056 0.060 0.073
1. All peripherals OFF, V
DD
from 1.8 V to 3.6 V, HSI internal RC osc. , f
CPU
= f
SYSCLK
2. Flash is configured in I
DDQ
mode in Wait mode by setting the EPM or WAITM bit in the Flash_CR1 register.
3. Oscillator bypassed (HSEBYP = 1 in CLK_ECKCR). When configured for external crystal, the HSE consumption
(I
DD HSE
) must be added. Refer to Table 28.
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