STM8T143 datasheet(46/65 Pages) STMICROELECTRONICS

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Electrical characteristics

STM8T143

46/65

DocID18315 Rev 6

9.7.4

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.

9.7.5

Electrostatic discharge (ESD)

Electrostatic discharges (3 positive then 3 negative pulses 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. For more details, refer to the application

note AN1181.

9.7.6

Static latchup

Two 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

application note AN1181.

Table 23. ESD absolute maximum ratings

Symbol

Ratings

Conditions

Class

Maximum

value(1)

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

Unit

VESD(HBM)

Electrostatic discharge voltage

(Human body model)

TA = +25°C, conforming

to JESD22-A114

VESD(CDM)

Electrostatic discharge voltage

(Charge device model)

TA = +25°C, conforming

to JESD22-C101

Table 24. Electrical sensitivities

Symbol

Parameter

Conditions

Class(1)

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

JEDEC specifications, that means when a device belongs to class A it exceeds the JEDEC standard.

Class B strictly covers all the JEDEC criteria (international standard).

Static latchup

TA = +25 °C

TA = +85 °C

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