Datasheet

Product overview STM8AF52/62xx, STM8AF51/61xx
28/110 Doc ID 14395 Rev 9
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 (I
2
C 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.