Datasheet
Electrical characteristics ST7LITE20F2 ST7LITE25F2 ST7LITE29F2
136/170 DocID8349 Rev 7
Note: Data based on characterization results, not tested in production.
13.7.3 Absolute maximum ratings (Electrical sensitivity)
Based on three different tests (ESD, LU and DLU) using specific measurement methods,
the product is stressed in order to determine its performance in terms of electrical sensitivity.
Note: For more details, refer to the application note AN1181.
Electro-Static Discharge (ESD)
Electro-Static 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*(n+1) supply pin). This test
conforms to the JESD22-A114A/A115A standard.
Static and dynamic latch-up
• LU: 3 complementary static tests are required on 10 parts to assess the latch-up
performance. A supply overvoltage (applied to each power supply pin) and a current
injection (applied to each input, output and configurable I/O pin) are performed on each
sample. This test conforms to the EIA/JESD 78 IC latch-up standard.
• DLU: Electro-Static Discharges (one positive then one negative test) are applied to
each pin of 3 samples when the micro is running to assess the latch-up performance in
dynamic mode. Power supplies are set to the typical values, the oscillator is connected
as near as possible to the pins of the micro and the component is put in reset mode.
This test conforms to the IEC1000-4-2 and SAEJ1752/3 standards.
Note: For more details, refer to the application note AN1181.
Table 77. Emission test
Symbol Parameter Conditions
Monitored
Frequency Band
Max vs. [f
OSC
/f
CPU
]Unit
8/4MHz 16/8MHz −
S
EMI
Peak level
V
DD
=5V, T
A
=+25°C,
SO20 package,
conforming to SAE J 1752/3
0.1 MHz to 30 MHz 9 17
dBμV30 MHz to 130 MHz 31 36
130 MHz to 1 GHz 25 27
SAE EMI Level 3.5 4 −
Table 78. Absolute maximum ratings
Symbol Ratings Conditions Maximum value
(1)
1. Data based on characterization results, not tested in production.
Unit
V
ESD(HBM)
Electro-static discharge voltage
(Human body model)
T
A
=+25°C 4000 V