Datasheet

Electrical characteristics STM8S001J3
44/84 DocID030584 Rev 2
9.3.1 VCAP external capacitor
Stabilization for the main regulator is achieved connecting an external capacitor C
EXT
to the
V
CAP
pin. C
EXT
is specified in Table 17. Care should be taken to limit the series inductance
to less than 15 nH.
Figure 8. External capacitor C
EXT
1. Legend: ESR is the equivalent series resistance and ESL is the equivalent inductance.
9.3.2 Supply current characteristics
The current consumption is measured as described in Section 9.1.5: Pin input voltage.
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.
Subject to general operating conditions for V
DD
and T
A
.
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Table 19. Total current consumption with code execution in run mode at V
DD
= 5 V
Symbol Parameter Conditions Typ Max
(1)
Unit
I
DD(RUN)
Supply
current in
run mode,
code
executed
from RAM
f
CPU
= f
MASTER
= 16 MHz
HSE user ext. clock (16 MHz) 2 2.35
mA
HSI RC osc. (16 MHz) 1.7 2
f
CPU
= f
MASTER
/128 = 125 kHz
HSE user ext. clock (16 MHz) 0.86 -
HSI RC osc. (16 MHz) 0.7 0.87
f
CPU
= f
MASTER
/128 =
15.625 kHz
HSI RC osc. (16 MHz/8) 0.46 0.58
f
CPU
= f
MASTER
= 128 kHz LSI RC osc. (128 kHz) 0.41 0.55
Supply
current in
run mode,
code
executed
from Flash
f
CPU
= f
MASTER
= 16 MHz
HSE user ext. clock (16 MHz) 4.3 4.75
HSI RC osc.(16 MHz) 3.7 4.5
f
CPU
= f
MASTER
= 2 MHz HSI RC osc. (16 MHz/8)
(2)
0.84 1.05
f
CPU
= f
MASTER
/128 = 125 kHz HSI RC osc. (16 MHz) 0.72 0.9
f
CPU
= f
MASTER
/128 =
15.625 kHz
HSI RC osc. (16 MHz/8) 0.46 0.58
f
CPU
= f
MASTER
= 128 kHz LSI RC osc. (128 kHz) 0.42 0.57
1. Guaranteed by characterization results.
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