Datasheet

Electrical parameters STM8L051F3
84/96 DS9178 Rev 4
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 36 or Figure 37,
depending on whether V
REF+
is connected to V
DDA
or not. Good quality ceramic 10 nF
capacitors should be used. They should be placed as close as possible to the chip.
Figure 36. Power supply and reference decoupling (V
REF+
not connected to V
DDA
)
Table 47. R
AIN
max for f
ADC
= 16 MHz
(1)
1. Guaranteed by design.
Ts (cycles)
Ts
(µs)
R
AIN
max (kohm)
Slow channels
2.4 V < V
DDA
< 3.6 V 1.8 V < V
DDA
< 2.4 V
4 0.25 Not allowed Not allowed
9 0.5625 0.8 Not allowed
16 1 2.0 0.8
24 1.5 3.0 1.8
48 3 6.8 4.0
96 6 15.0 10.0
192 12 32.0 25.0
384 24 50.0 50.0
Supply
External
reference
STM8L
V
REF+
VDDA
VSSA/VREF-
1 μF // 10 nF
1 μF // 10 nF
ai17031c
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