Datasheet

STM8L052R8 Pin description
Doc ID 023133 Rev 2 25/55
21
PE2/TIM1_CH3N/
LCD_SEG3/RTC_TAMP3
I/O FT
(2)
XXXHSXXPort E2
Timer 1 - inverted channel
3 / LCD segment 3/
RTC tamper 3
22
PE3/LCD_SEG4
/USART2_RX
I/O FT
(2)
XXXHSXXPort E3
LCD segment 4
/USART2 receive
23
PE4/LCD_SEG5
/USART2_TX
I/O FT
(2)
XXXHSXXPort E4
LCD segment 5
/USART2 transmit
24
PE5/LCD_SEG6/
ADC1_IN23/USART2_CK
I/O FT
(2)
XXXHSXXPort E5
LCD segment 6 /
ADC1_IN23/USART2
synchronous clock
63 PE6/PVD_IN/TIM5_BKIN I/O FT
(2)
XXXHSXXPort E6
PVD_IN
/TIM5 break input
64
PE7
/TIM5_ETR
I/O FT
(2)
XXXHSXXPort E7 TIM5 trigger
39
PF0/ADC1_IN24
/[USART3_TX]
I/O X X X HS X X Port F0
ADC1_IN24/
[USART3 transmit]
40
PF1/ADC1_IN25/
[USART3_RX]
I/O X XXHSXXPort F1
ADC1_IN25/
[USART3 receive]
41
PF4/LCD_SEG36
/LCD_COM4
(5)
I/O FT
(2)
X XXHSXXPort F4
LCD_SEG36/
LCD COM4
(5)
42
PF5/LCD_SEG37/
LCD_COM5
(5)
I/O FT
(2)
X XXHSXXPort F5
LCD_SEG37/
LCD COM5
(5)
43
PF6/LCD_SEG38/
LCD_COM6
(5)
I/O FT
(2)
X XXHSXXPort F6
LCD_SEG38/
LCD COM6
(5)
44
PF7/LCD_SEG39/
LCD_COM7
(5)
I/O FT
(2)
X XXHSXXPort F7
LCD_SEG39/
LCD COM7
(5)
18 VLCD S LCD booster external capacitor
11 V
DD1
S Digital power supply
10 V
SS1
I/O ground
12 V
DDA
S Analog supply voltage
13 V
REF+
S ADC1 positive voltage reference
14
PG0/USART3_RX/
[TIM2_BKIN]
I/O FT
(2)
X XXHSXXPort G0
USART3 receive /
[Timer 2 - break input]
15
PG1/USART3_TX/
[TIM3_BKIN]
I/O FT
(2)
X XXHSXXPort G1
USART3 transmit /
[Timer 3 -break input]
Table 4. High density value line STM8L05xxx pin description (continued)
Pin
number
Pin name
Type
I/O level
Input Output
Main function
(after reset)
Default alternate function
LQFP64
floating
wpu
Ext. interrupt
High sink/source
OD
PP