ST7LITE49M datasheet(158/188 Pages) STMICROELECTRONICS

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Electrical characteristics

ST7LITE49M

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13.8.2

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 SAE J 1752/3 which specifies the board and the loading of each pin.

13.8.3

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.

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*(n+1) supply pin). Two models

can be simulated: Human Body model and Machine model. This test conforms to the

JESD22-A114A/A115A standard.

Table 86.

EMI characteristics(1)

Data based on characterization results, not tested in production.

Symbol

Parameter

Conditions

Monitored

frequency band

Max vs.

[fOSC/fCPU]

(2)

TBD stands for ‘to be determined’.

Unit

8/4MHz 16/8MHz

SEMI

Peak level

VDD=5V, TA=+25°C, ,

conforming to SAE

J 1752/3

0.1 MHz to 30 MHz

µV

30 MHz to 130 MHz

130 MHz to 1 GHz

SAE EMI Level

3.5

Table 87.

Absolute maximum ratings

Symbol

Ratings

Conditions

Maximum

value(1)

Data based on characterization results, not tested in production.

Unit

VESD(HBM)

Electrostatic discharge voltage (Human Body

model)

TA=+25 °C

4000

VESD(CDM)

Electrostatic discharge voltage (Charge Device

model)

TA=+25 °C

500

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