ST7LITEUS5 datasheet(106/136 Pages) STMICROELECTRONICS

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Electrical characteristics

ST7LITEUS2, ST7LITEUS5

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12.7.2

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.

12.7.3

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.

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). One model

can be simulated: Human Body Model. This test conforms to the JESD22-A114A/A115A

standard.

Static and dynamic latchup

●

LU: 3 complementary static tests are required on 10 parts to assess the latchup

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 latchup standard. For more details,

refer to the application note AN1181.

●

DLU: Electrostatic discharges (one positive then one negative test) are applied to each

pin of 3 samples when the micro is running to assess the latchup performance in

Table 60.

EMI characteristics(1)

Data based on characterization results, not tested in production.

Symbol

Parameter

Conditions

Monitored

frequency band

Max vs.

[fOSC/fCPU]

Unit

-/8 MHz

SEMI

Peak level

VDD=5V, TA=+25 °C,

SO8 package,

conforming to SAE J

1752/3

0.1 MHz to

30 MHz

μV

30 MHz to

130 MHz

130 MHz to

1GHz

SAE EMI Level

Table 61.

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

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