Datasheet

STM8AF52/62xx, STM8AF51/61xx Pinouts and pin description
Doc ID 14395 Rev 9 33/110
Table 13. STM8A microcontroller family 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
LQFP32/VFQFPN32
floating
wpu
Ext. interrupt
High sink
Speed
OD
PP
1 1 1 1 NRST I/O - X — — — — — Reset —
2222 PA1/OSCIN
(1)
I/O X X——O1X XPort A1
Resonator/
crystal in
—
3 3 3 3 PA2/OSCOUT I/O X XX—O1XXPort A2
Resonator/
crystal out
—
444- V
SSIO_1
S — — — — — — — I/O ground —
5554 V
SS
S — — — — — — — Digital ground —
6 6 6 5 VCAP S — — — — — — — 1.8 V regulator capacitor —
7776 V
DD
S — — — — — — — Digital power supply —
8887 V
DDIO_1
S — — — — — — — I/O power supply —
9 9 9 - PA3/TIM2_CH3 I/O X XX—O1XXPort A3
Timer 2 -
channel 3
TIM3_CH1
[AFR1]
10 10 10 - PA4/USART_RX I/O X XX—O3XXPort A4
USART
receive
—
11 11 11 - PA5/USART_TX I/O X XX—O3XXPort A5
USART
transmit
—
12 12 12 - PA6/USART_CK I/O X XX—O3XXPort A6
USART
synchronous
clock
—
13--- PH0 I/OXX—HSO3XXPort H0 ——
14--- PH1 I/OX X—HSO3X XPort H1 ——
15--- PH2 I/OX X——O1X XPort H2 ——
16--- PH3 I/OX X——O1X XPort H3 ——
17 13 - - PF7/AIN15 I/O X X——O1X XPort F7
Analog
input 15
—
18 14 - - PF6/AIN14 I/O X X——O1X XPort F6
Analog
input 14
—
19 15 - - PF5/AIN13 I/O X X——O1X XPort F5
Analog
input 13
—
20 16 - 8 PF4/AIN12 I/O X X——O1X XPort F4
Analog
input 12
—
21 17 - - PF3/AIN11 I/O X X——O1X XPort F3
Analog
input 11
—