Datasheet

DS9178 Rev 4 23/96
STM8L051F3 Pin description
41
4 Pin description
Figure 3. STM8L051F3 20-pin TSSOP20 package pinout
Table 3. Legend/abbreviation for Table 4
Type I= input, O = output, S = power supply
Level
Output HS = high sink/source (20 mA)
Input FT - five volt tolerant
Port and control
configuration
Input float = floating, wpu = weak pull-up
Output T = true open drain, OD = open drain, PP = push pull
Reset state
Bold X (pin state after reset release).
Unless otherwise specified, the pin state is the same during the reset phase
(i.e. “under reset”) and after internal reset release (i.e. at reset state).
PA3
PA2
V
SS
/V
SSA
/V
REF-
NRST / PA1
PC0
PC1
PB7
PB6
PB1
PB2
PB3
PB4
PB5
V
DD
/V
DDA
/V
REF+
PC4
1
2
3
4
5
6
7
10
9
8
20
19
18
17
16
15
14
11
12
13
MS18280V1
PB0
PD0
PA0
PC6
PC5
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