STM8S103F2 datasheet(18/121 Pages) STMICROELECTRONICS

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Product overview

STM8S103F2 STM8S103F3 STM8S103K3

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DocID15441 Rev 14

4.12

TIM4 - 8-bit basic timer

•

8-bit auto reload, adjustable prescaler ratio to any power of 2 from 1 to 128

•

Clock source: CPU clock

•

Interrupt source: 1 x overflow/update

4.13

Analog-to-digital converter (ADC1)

The STM8S103F2/x3 family products contain a 10-bit successive approximation A/D

converter (ADC1) with up to 5 external multiplexed input channels and the following main

features:

•

Input voltage range: 0 to VDD

•

Conversion time: 14 clock cycles

•

Single and continuous and buffered continuous conversion modes

•

Buffer size (n x 10 bits) where n = number of input channels

•

Scan mode for single and continuous conversion of a sequence of channels

•

Analog watchdog capability with programmable upper and lower thresholds

•

Analog watchdog interrupt

•

External trigger input

•

Trigger from TIM1 TRGO

•

End of conversion (EOC) interrupt

4.14

Communication interfaces

The following communication interfaces are implemented:

•

UART1: Full feature UART, synchronous mode, SPI master mode, Smartcard mode,

IrDA mode, single wire mode, LIN2.1 master capability

•

SPI: Full and half-duplex, 8 Mbit/s

•

I²C: Up to 400 kbit/s

Table 3. TIM timer features

Timer

Counter

size (bits)

Prescaler

Counting

mode

CAPCOM

channels

Complementary

outputs

Ext.

trigger

Timer

synchronization/

chaining

TIM1

Any integer

from 1 to

65536

Up/down

Yes

TIM2

Any power

of 2 from 1

to 32768

TIM4

Any power

of 2 from 1

to 128

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