STR750FXX datasheet(52/84 Pages) STMICROELECTRONICS

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Electrical parameters

STR750Fxx STR751Fxx STR752Fxx STR755Fxx

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Electro magnetic 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.

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.

Electro-Static discharge (ESD)

Electro-Static 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). Two models

can be simulated: Human Body Model and Machine Model. This test conforms to the

JESD22-A114A/A115A standard.

Table 29.

EMI characteristics

Symbo

Parameter

Conditions

Monitored

Frequency Band

Max vs. [fOSC4M/fHCLK]

Unit

4/32MHz

4/60MHz

SEMI

Peak level

Flash devices:

VDD_IO=3.3 V or 5 V,

TA=+25° C,

LQFP64 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

Table 30.

Absolute maximum ratings

Symbol

Ratings

Conditions

Maximum

value(1)

Data based on product characterisation, not tested in production.

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

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