ST7LITE3XF2 datasheet(147/173 Pages) STMICROELECTRONICS

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ST7LITE3xF2

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EMC CHARACTERISTICS (Cont’d)

13.7.2 EMI (Electromagnetic Interference)

Based on a simple application running on the

product (toggling two 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.

Note:

1. Data based on characterization results, not tested in production.

13.7.3 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.

13.7.3.1 Electrostatic Discharge (ESD)

Electrostatic discharges (a positive then a nega-

tive 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 con-

forms to the JESD22-A114A/A115A standard. For

more details, refer to the application note AN1181.

ESD Absolute Maximum Ratings

Notes:

1. Data based on characterization results, not tested in production.

13.7.3.2 Static latch-up

Two complementary static tests are required on 10

parts to assess the latch-up performance.

A supply overvoltage (applied to each power sup-

ply pin) and a current injection (applied to each in-

put, output and configurable I/O pin) are per-

formed on each sample. These tests are compliant

with the EIA/JESD 78 IC latch-up standard.

Electrical Sensitivities

Note:

1. Class description: A Class is an STMicroelectronics internal specification. All its limits are higher than the JEDEC spec-

ifications, that means when a device belongs to Class A it exceeds the JEDEC standard. B Class strictly covers all the

JEDEC criteria (international standard).

Symbol

Parameter

Conditions

Monitored

Frequency Band

Max vs. [fOSC/fCPU]

Unit

8/4MHz

16/8MHz

SEMI

Peak level

VDD=5V, TA=+25°C,

SO20 package,

conforming to SAE J 1752/3

0.1MHz to 30MHz

µV

30MHz to 130MHz

130MHz to 1GHz

SAE EMI Level

3.5

Symbol

Ratings

Conditions

Maximum value 1) Unit

VESD(HBM)

Electro-static discharge voltage

(Human Body Model)

TA=+25°C

6000

Symbol

Parameter

Conditions

Class 1)

Static latch-up class

TA=+25°C

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