STM8L151G4Y3 STMICROELECTRONICS [STMicroelectronics], STM8L151G4Y3 Datasheet - Page 27

• Manufacturer Part Number: STM8L151G4Y3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8L151xx, STM8L152xx
Table 5.
2
3
4
5
6
-
number
Pin
1
2
3
4
-
-
1 C3 NRST/PA1
2 B4
3 C4
4 D3
-
-
-
-
Table 4.
STM8L15x pin description
Type
Level
Port and control
configuration
Reset state
PA2/OSC_IN/
[USART1_TX]
[SPI1_MISO]
PA3/OSC_OUT/[USART1
_RX]
PA4/TIM2_BKIN/
LCD_COM0
COMP1_INP
PA4/TIM2_BKIN/
[TIM2_TRIG]
LCD_COM0
ADC1_IN2/COMP1_INP
PA5/TIM3_BKIN/
LCD_COM1
COMP1_INP
(3)
/[SPI1_MOSI]
Pin name
(1)
Legend/abbreviation for table 5
(2)
(2)
(2)
(3)
(3)
(3)
/ADC1_IN2/
/
/ADC1_IN1/
/
/
I= input, O = output, S = power supply
Input
Output
Input
Output
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).
(3)
I/O
I/O
I/O
I/O
I/O
I/O
CM = CMOS
HS = high sink/source (20 mA)
float = floating, wpu = weak pull-up
T = true open drain, OD = open drain, PP = push pull
Doc ID 15962 Rev 5
X
X
X
X
X
Input
X
X
X
X
X
X
X
X
X
X
X
HS X
HS X
HS X
HS X
HS X
HS X
Output
X Reset
X Port A2
X Port A3
X Port A4
X Port A4
X Port A5
PA1
HSE oscillator input /
[USART1 transmit] /
[SPI1 master in- slave
out] /
HSE oscillator output /
[USART1 receive]/ [SPI1
master out/slave in]/
Timer 2 - break input /
LCD COM 0 / ADC1
input 2 / Comparator 1
positive input
Timer 2 - break input /
[Timer 2 - trigger] /
LCD_COM 0 / ADC1
input 2 /
Comparator 1 positive
input
Timer 3 - break input /
LCD_COM 1 / ADC1
input 1/
Comparator 1 positive
input
Default alternate
Pin description
function
27/122