Datasheet

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STM8S105x4/6 Electrical characteristics
90
Electromagnetic interference (EMI)
Based on a simple application running on the product (toggling 2 LEDs through the I/O
ports), the product is monitored in terms of emission. This emission test is in line with the
norm IEC 61967-2 which specifies the board and the loading of each pin.
Absolute maximum ratings (electrical sensitivity)
Based on two different tests (ESD, DLU and LU) using specific measurement methods, the
product is stressed to determine its performance in terms of electrical sensitivity. For more
details, refer to the application note AN1181.
Electrostatic discharge (ESD)
Electrostatic discharges (a positive then a negative pulse separated by 1 second) are
applied to the pins of each sample according to each pin combination. The sample size
depends on the number of supply pins in the device (3 parts x (n+1) supply pin). One model
can be simulated: Human body model. This test conforms to the JESD22-A114A/A115A
standard. For more details, refer to the application note AN1181.
1. Data obtained with HSI clock configuration, after applying the hardware recommendations described in
AN2860 (EMC guidelines for STM8S microcontrollers).
Table 48. EMI data
Symbol Parameter
Conditions
Unit
General conditions
Monitored
frequency band
Max f
HSE
/f
CPU
(1)
1. Data based on characterization results, not tested in production.
8 MHz/
8 MHz
8 MHz/
16 MHz
S
EMI
Peak level
V
DD
5 V, 
T
A
25 °C, 
LQFP48 package.
Conforming to 
IEC 61967-2
0.1 MHz to 30 MHz 13 14
dBµV30 MHz to 130 MHz 23 19
130 MHz to 1 GHz -4.0 -4.0
EMI level EMI level 2.0 1.5 -
Table 49. ESD absolute maximum ratings
Symbol Ratings Conditions Class
Maximum
value
(1)
1. Data based on characterization results, not tested in production
Unit
V
ESD(HBM)
Electrostatic discharge voltage
(Human body model)
T
A
25°C, conforming to
JESD22-A114
A 2000
V
V
ESD(CDM)
Electrostatic discharge voltage
(Charge device model)
T
A
 25°C, conforming to
SD22-C101
IV 1000