ST7DALIF2 datasheet(142/171 Pages) STMICROELECTRONICS

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Electrical characteristics

ST7DALIF2

142/171

20.7.2

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.

20.7.3

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.

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). This test

conforms to the AEC-Q100-002 standard.

Static latch-up (LU)

2 complementary static tests are required on six parts to assess the latch-up performance.

●

A supply overvoltage (applied to each power supply pin)

●

A current injection (applied to each input, output and configurable I/O pin)

These tests are compliant with the EIA/JESD 78 IC latch-up standard.

Table 82.

EMI data(1)

Data based on characterization results, not tested in production.

Symbol

Parameter

Conditions

Monitored

frequency band

Max vs.

[fOSC2/fCPU]

Unit

8/4

MHz

16/8

MHz

SEMI

Peak level

VDD=5 V, TA=+25° C,

SO20 package,

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 83.

Absolute maximum ratings

Symbol

Ratings

Conditions

Class

Maximum

value (1)

Unit

VESD(HBM)

Electrostatic discharge voltage

(Human Body Model)

TA=+25°C

conforming to AEC-Q100-

002

H1C

4000

Data based on characterization results, not tested in production.

Table 84.

Electrical sensitivities

Symbol

Parameter

Conditions

Class

Static latch-up class

TA=+25° C conforming to JESD 78

II level A

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