STM8AF528A datasheet(27/125 Pages) STMICROELECTRONICS

No. de pieza	STM8AF528A

Descripción Electrónicos	Automotive 8-bit MCU, with up to 128 Kbyte Flash, data EEPROM, 10-bit ADC, timers, LIN, CAN, USART, SPI, I2C, 3 to 5.5 V

PDF	125 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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27 / 125 page

DocID14395 Rev 15

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STM8AF526x/8x/Ax STM8AF6269/8x/Ax

Product overview

114

5.10

Input/output specifications

The product features four I/O types:

•

Standard I/O 2 MHz

•

Fast I/O up to 10 MHz

•

High sink 8 mA, 2 MHz

•

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.

Caution:

In STM8AF5286UC device, the following I/O ports are not automatically configured by

hardware: PA3, PA4, PA5, PA6, PF4, PB6, PB7, PE0, PE1, PE2, PE3, PE6, PE7.

As a consequence, they must be put into one of the following configurations by software:

- configured as input with internal pull-up/down resistor,

- configured as output push-pull low.

STM8AF528A Datasheet(PDF) 27 Page - STMicroelectronics