STR710FZ1 datasheet(49/78 Pages) STMICROELECTRONICS

49 / 78 page

STR71xF

Electrical parameters

49/78

Notes:

Data based on characterization results, not tested in production.

Static and dynamic latch-up

●

LU: 3 complementary static tests are required on 10 parts to assess the latch-up

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 latch-up standard. For more details,

refer to the application note AN1181.

●

DLU: Electro-Static Discharges (one positive then one negative test) are applied to

each pin of 3 samples when the micro is running to assess the latch-up performance in

dynamic mode. Power supplies are set to the typical values, the oscillator is connected

as near as possible to the pins of the micro and the component is put in reset mode.

This test conforms to the IEC1000-4-2 and SAEJ1752/3 standards. For more details,

refer to the application note AN1181.

Electrical sensitivities

Table 27.

ESD absolute maximum ratings

Symbol

Ratings

Conditions

Maximum

value 1)

Unit

VESD(HBM)

Electro-static discharge voltage

(Human Body Model)

TA=+25°C

2000

VESD(MM)

Electro-static discharge voltage

(Machine Model)

200

VESD(CDM)

Electro-static discharge voltage

(Charge Device Model)

750 on corner

pins, 500 on

others

Table 28.

Static and dynamic latch-up

Symbol

Parameter

Conditions

Class (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. B

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

Static latch-up class

TA=+25°C

TA=+85°C

TA=+105°C

DLU

Dynamic latch-up class

VDD=3.3 V, fOSC4M=4 MHz, fMCLK=32 MHz,

TA=+25°C

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