STM8L052C6 datasheet(23/103 Pages) STMICROELECTRONICS

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STM8L052C6

Pin description

Figure 3. STM8L052C6 48-pin LQFP48 package pinout (with LCD)

Table 3. Legend/abbreviation for Table 4

Type

I= input, O = output, S = power supply

Level

Five-volt tolerant

3.6 V tolerant

Output

HS = high sink/source (20 mA)

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 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).

44 43 42 41 40 39 38 37

13 14 15 16 17 18 19 20 21 22

48 47 46 45

PA5

VSS1/VSSA/VREF-

NRST/PA1

PA2

PA3

PA4

PA6

PA7

VDD1

VDDA

VREF+

PB1

PB2

PB3

PB4

PB5

PB6

PB7

PF0

PD4

PD5

PD6

PD7

PA0

Table 4. Medium-density value line STM8L052C6pin description

Pin #

Pin name

Input

Output

Default alternate function

NRST/PA1(1)

I/O

X Reset

PA1

PA2/OSC_IN/



[USART1_TX](8)/



[SPI1_MISO] (8)

I/O

XXX

X Port A2

HSE oscillator input /

[USART1 transmit] / [SPI1

master in- slave out]

PA3/OSC_OUT/[USART1_

RX](8)/[SPI1_MOSI](8)

I/O

XXX

X Port A3

HSE oscillator output /

[USART1 receive]/ [SPI1

master out/slave in]/

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