STM8S105C4 datasheet(19/121 Pages) STMICROELECTRONICS

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STM8S105x4/6

Product overview

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 STM8S105x4/6 products contain a 10-bit successive approximation A/D converter

(ADC1) with up to 10 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

Note:

Additional AIN12 analog input is not selectable in ADC scan mode or with analog watchdog.

Values converted from AIN12 are stored only into the ADC_DRH/ADC_DRL registers.

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

TIM3

Any power

of 2 from 1

to 32768

TIM4

Any power

of 2 from 1

to 128

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