STM8T143 STMicroelectronics, STM8T143 Datasheet - Page 45

• Manufacturer Part Number: STM8T143
• Description: Single-channel capacitive sensor for touch and proximity detection
• Manufacturer: STMicroelectronics

STM8T143
9.7
9.7.1
9.7.2
9.7.3
9.7.4
EMC characteristics
Susceptibility and emission tests are performed on a sample basis during product
characterization.
Both the sample and its applicative hardware environment are mounted on a dedicated
specific EMC board defined in the IEC61967-1 standard.
Functional EMS (electromagnetic susceptibility)
While running in the above described environment the product is stressed by two
electromagnetic events until a failure occurs.
●
●
A device reset allows normal operations to be resumed. The test results are given in
Table 22
Prequalification trials
Table 22.
Electromagnetic interference (EMI)
Emission tests conform to the IEC61967-2 standard for board layout and pin loading. Worse
case EMI measurements are performed during maximum device activity.
Table 23.
1. Data based on characterization results, not tested in production.
Absolute maximum ratings (electrical sensitivity)
Based on two different tests (ESD and LU) using specific measurement methods, the
product is stressed in order to determine its performance in terms of electrical sensitivity.
For more details, refer to the application note AN1181.
Symbol
Symbol
V
S
EFTB
EMI
ESD: Electrostatic discharge (positive and negative) is applied on all pins of the device
until a functional disturbance occurs. This test complies with the IEC 1000-4-2
standard.
FTB: A burst of fast transient voltage (positive and negative) is applied to V
through a 100 pF capacitor, until a functional disturbance occurs. This test complies
with the IEC 1000-4-4 standard.
based on the EMS levels and classes defined in application note AN1709.
Fast transient voltage burst limits to be
applied through 100pF on V
to induce a functional disturbance
Peak level
SAE EMI level
EMS data
EMI data
Parameter
Parameter
V
UFDFPN8 package,
Complies with SAE
J1752/3, No finger on
touch electrode
DD
General conditions
Doc ID 18315 Rev 3
= 5 V, T
DD
and V
A
= +25 °C,
SS
pins
V
UFDFPN8 package, complies
with IEC 1000-4-4
0.1 MHz to 30 MHz
30 MHz to 130 MHz
130 MHz to 1 GHz
DD
frequency band
= 5 V, T
Monitored
Conditions
A
=+25 °C,
Electrical characteristics
1 MHz
RC
OSC =
-4
-3
-4
1
DD
Level/class
(1)
and V
4A
dBµV
Unit
45/62
SS