STM8S903K3 datasheet(18/121 Pages) STMICROELECTRONICS

18 / 121 page

Product overview

STM8S903K3 STM8S903F3

18/121

DocID15590 Rev 10

4.12

TIM6 - 8-bit basic timer



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



Clock source: CPU clock



Interrupt source: 1 x overflow/update



Synchronization module to control the timer with external signals or to synchronize with

TIM1 or TIM5.

4.13

Analog-to-digital converter (ADC1)

The STM8S903K3/F3 family products contain a 10-bit successive approximation A/D

converter (ADC1) with up to 7 external and 1 internal 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



Internal reference voltage on channel AIN7



Analog watchdog interrupt



External trigger input



Trigger from TIM1 TRGO



End of conversion (EOC) interrupt

Internal bandgap reference voltage

Channel AIN7 is internally connected to the internal bandgap reference voltage. The internal

bandgap reference is constant and can be used for example to monitor VDD. It is

independent of variations in VDD and ambient temperature TA.

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

TIM5

Any power of

2 from 1 to

32768

TIM6

Any power of

2 from 1 to

128

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