STM8S207MBT3B datasheet(18/103 Pages) STMICROELECTRONICS

18 / 103 page

Product overview

STM8S207xx, STM8S208xx

18/103

Doc ID 14733 Rev 9

Independent watchdog timer

The independent watchdog peripheral can be used to resolve processor malfunctions due to

hardware or software failures.

It is clocked by the 128 kHZ LSI internal RC clock source, and thus stays active even in case

of a CPU clock failure

The IWDG time base spans from 60 µs to 1 s.

4.8

Auto wakeup counter

●

Used for auto wakeup from active halt mode

●

Clock source: Internal 128 kHz internal low frequency RC oscillator or external clock

●

LSI clock can be internally connected to TIM3 input capture channel 1 for calibration

4.9

Beeper

The beeper function outputs a signal on the BEEP pin for sound generation. The signal is in

the range of 1, 2 or 4 kHz.

4.10

TIM1 - 16-bit advanced control timer

This is a high-end timer designed for a wide range of control applications. With its

complementary outputs, dead-time control and center-aligned PWM capability, the field of

applications is extended to motor control, lighting and half-bridge driver

●

16-bit up, down and up/down autoreload counter with 16-bit prescaler

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Four independent capture/compare channels (CAPCOM) configurable as input

capture, output compare, PWM generation (edge and center aligned mode) and single

pulse mode output

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Synchronization module to control the timer with external signals

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Break input to force the timer outputs into a defined state

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Three complementary outputs with adjustable dead time

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Encoder mode

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Interrupt sources: 3 x input capture/output compare, 1 x overflow/update, 1 x break

4.11

TIM2, TIM3 - 16-bit general purpose timers

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16-bit autoreload (AR) up-counter

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15-bit prescaler adjustable to fixed power of 2 ratios 1…32768

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Timers with 3 or 2 individually configurable capture/compare channels

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PWM mode

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Interrupt sources: 2 or 3 x input capture/output compare, 1 x overflow/update

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