STM8AF6148 datasheet(23/89 Pages) STMICROELECTRONICS

23 / 89 page

STM8AF61xx, STM8AF62xx

Product overview

Doc ID 14952 Rev 6

23/89

UART mode

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Full duplex, asynchronous communications - NRZ standard format (mark/space)

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High-precision baud rate generator

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A common programmable transmit and receive baud rates up to fMASTER/16

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Programmable data word length (8 or 9 bits) – 1 or 2 stop bits – parity control

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Separate enable bits for transmitter and receiver

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Error detection flags

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Reduced power consumption mode

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Multi-processor communication - enter mute mode if address match does not occur

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Wakeup from mute mode (by idle line detection or address mark detection)

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Two receiver wakeup modes:

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Address bit (MSB)

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Idle line

5.10

Input/output specifications

The product features four different I/O types:

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Standard I/O 2 MHz

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Fast I/O up to 10 MHz

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High sink 8 mA, 2 MHz

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True open drain (I2C interface)

To decrease EMI (electromagnetic interference), high sink I/Os have a limited maximum

slew rate. The rise and fall times are similar to those of standard I/Os.

The analog inputs are equipped with a low leakage analog switch. Additionally, the schmitt-

trigger input stage on the analog I/Os can be disabled in order to reduce the device standby

consumption.

STM8A I/Os are designed to withstand current injection. For a negative injection current of

4 mA, the resulting leakage current in the adjacent input does not exceed 1 µA. Thanks to

this feature, external protection diodes against current injection are no longer required.

STM8AF6148 数据表(PDF) 23 Page - STMicroelectronics

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