STM8AP528A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM8AP528A Datasheet PDF : 125 Pages
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STM8AF526x/8x/Ax STM8AF6269/8x/Ax
Product overview
5.10
Caution:
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.
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.
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