Datasheet

Pinouts and pin description STM8S207xx, STM8S208xx
28/103 Doc ID 14733 Rev 12
Table 5. Legend/abbreviations for pinout table
Type I= Input, O = Output, S = Power supply
Level Input CM = CMOS
Output HS = High sink
Output speed O1 = Slow (up to 2 MHz)
O2 = Fast (up to 10 MHz)
O3 = Fast/slow programmability with slow as default state after reset
O4 = Fast/slow programmability with fast as default state after reset
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 internal reset release)
Unless otherwise specified, the pin state is the same during the reset phase and
after the internal reset release.
Table 6. Pin description
Pin number
Pin name
Type
Input Output
Main function
(after reset)
Default
alternate
function
Alternate
function
after remap
[option bit]
LQFP80 LQFP64 LQFP48 LQFP44 LQFP32
floating
wpu
Ext. interrupt
High sink
Speed
OD
PP
11111NRST I/O X Reset
2 2 2 2 2 PA1/OSCIN I/O X XO1XXPort A1
Resonator/
crystal in
3 3 3 3 3 PA2/OSCOUT I/O X
XX O1XXPort A2
Resonator/
crystal out
4444-V
SSIO_1
S I/O ground
55554V
SS
S Digital ground
6 6 6 6 5 VCAP S 1.8 V regulator capacitor
77776V
DD
S Digital power supply
88887V
DDIO_1
S I/O power supply
9 9 9 - - PA3/TIM2_CH3 I/O X
XX O1XXPort A3
Timer 2 -
channel3
TIM3_CH1
[AFR1]
10 10 10 9 - PA4/UART1_RX
(1)
I/O X XXHSO3XXPort A4 UART1 receive
11 11 11 10 - PA5/UART1_TX I/O X XXHSO3XXPort A5
UART1
transmit
12 12 12 11 - PA6/UART1_CK I/O X XXHSO3XXPort A6
UART1
synchronous
clock
13----PH0 I/OX
XHSO3XXPort H0
14----PH1 I/OX
XHSO3XXPort H1
15----PH2 I/OX
XO1XXPort H2