STM8AF6268ITCU datasheet(23/99 Pages) STMICROELECTRONICS

23 / 99 page

DocID14952 Rev 11

23/99

STM8AF6246/48/66/68

Product overview

5.8

Analog-to-digital converter (ADC)

The STM8A products described in this datasheet contain a 10-bit successive approximation

ADC with up to 16 multiplexed input channels, depending on the package.

The ADC name differs between the datasheet and STM8S series and STM8AF series 8-bit

microcontrollers reference manual (see Table 5).

ADC features

•

10-bit resolution

•

Single and continuous conversion modes

•

Programmable prescaler: fMASTER divided by 2 to 18

•

Conversion trigger on timer events and external events

•

Interrupt generation at end of conversion

•

Selectable alignment of 10-bit data in 2 x 8 bit result register

•

Shadow registers for data consistency

•

ADC input range: VSSA ≤ VIN ≤ VDDA

•

Analog watchdog

•

Schmitt-trigger on analog inputs can be disabled to reduce power consumption

•

Scan mode (single and continuous)

•

Dedicated result register for each conversion channel

•

Buffer mode for continuous conversion

Note:

An 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.

5.9

Communication interfaces

The following sections give a brief overview of the communication peripheral. Some

peripheral names differ between the datasheet and STM8S series and STM8AF series 8-bit

microcontrollers reference manual (see Table 6).

Table 5. ADC naming

Peripheral name in datasheet

Peripheral name in reference manual

(RM0016)

ADC

ADC1

Table 6. Communication peripheral naming correspondence

Peripheral name in datasheet

Peripheral name in reference manual

(RM0016)

LINUART

UART2

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