ST72324J2B5 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72324J2B5

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

STMicroelectronics 

ST72324

12.7 EMC CHARACTERISTICS

Susceptibility tests are performed on a sample ba-

sis during product characterization.

12.7.1 Functional EMS

(Electro Magnetic Susceptibility)

Based on a simple running application on the

product (toggling 2 LEDs through I/O ports), the

product is stressed by two electro magnetic events

until a failure occurs (indicated by the LEDs).

s ESD: Electro-Static Discharge (positive and

negative) is applied on all pins of the device until

a functional disturbance occurs. This test

conforms with the IEC 1000-4-2 standard.

s FTB: A Burst of Fast Transient voltage (positive

and negative) is applied to VDD and VSS through

a 100pF capacitor, until a functional disturbance

occurs. This test conforms with the IEC 1000-4-

4 standard.

A device reset allows normal operations to be re-

sumed.

Symbol

VFESD

VFFTB

Parameter

Conditions

Voltage limits to be applied on any I/O pin VDD=5V, TA=+25°C, fOSC=8MHz

to induce a functional disturbance

conforms to IEC 1000-4-2

Fast transient voltage burst limits to be ap-

plied through 100pF on VDD and VDD pins

to induce a functional disturbance

VDD=5V, TA=+25°C, fOSC=8MHz

conforms to IEC 1000-4-4

Neg 1) Pos 1)

-1

>1.5

-1.7 1.7

Unit

kV

12.7.2 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.

Symbol

Parameter

SEMI Peak level

SEMI Peak level

Conditions

Monitored

Frequency Band

0.1MHz to 30MHz

VDD=5V, TA=+25°C,

30MHz to 130MHz

TQFP44 package

conforming to SAE J 1752/3 130MHz to 1GHz

SAE EMI Level

0.1MHz to 30MHz

VDD=5V, TA=+25°C,

30MHz to 130MHz

TQFP32 package

conforming to SAE J 1752/3 130MHz to 1GHz

SAE EMI Level

Max vs. [fOSC/fCPU]

8/4MHz 16/8MHz

20

21

26

31

22

28

3.5

4.0

25

27

30

36

18

23

3.0

3.5

Unit

dBµV

-

dBµV

-

Notes:

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

130/161

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