STM8L151K6U3 STMICROELECTRONICS [STMicroelectronics], STM8L151K6U3 Datasheet - Page 30

• Manufacturer Part Number: STM8L151K6U3
• 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]

Pin description
Table 4.
1. When the PA1/NRST pin is used as general purpose (PA1), it can be configured only as output push-pull, not as a general
2. Available on STM8L152xx devices only.
3. [ ] Alternate function remapping option (if the same alternate function is shown twice, it indicates an exclusive choice not a
4. In the open-drain output column, ‘T’ defines a true open-drain I/O (P-buffer and protection diode to V
5. Available on STM8L151xx devices only.
6. High Sink LED driver capability available on PA0.
4.1
30/101
39
40
9
1
-
number
purpose input. Refer to Section Configuring NRST/PA1 pin as general purpose output in the STM8L15x reference manual
(RM0031).
duplication of the function).
Pin
32 28
8
7
-
-
7 V
6 V
- V
- V
PA0/[USART1_CK]
SWIM/BEEP/IR_TIM
STM8L15x pin description (continued)
System configuration options
As shown in
on different I/O ports by programming one of the two remapping registers described in the “
Routing interface (RI) and system configuration controller” section in the STM8L15xxx
reference manual (RM0031).
DD/
SS
DDIO
SSIO
/V
V
DDA/
SSA/
Pin name
V
V
REF-
REF+
Table 4: STM8L15x pin
(3)
/
(6)
I/O
S
S
S
S
Doc ID 15962 Rev 2
X
Input
description, some alternate functions can be remapped
X
X
HS
(6)
Output
X
X Port A0
Digital power supply / Analog supply
voltage / ADC1 positive voltage reference
I/O ground / Analog ground voltage /
ADC1 negative voltage reference
IOs supply voltage
IOs ground voltage
STM8L151xx, STM8L152xx
[USART1 synchronous clock]
SWIM input and output /
Beep output / Infrared Timer out-
put
Default alternate function
DD
are not implemented).
(3)
/