ST72682 STMicroelectronics, ST72682 Datasheet - Page 24

• Manufacturer Part Number: ST72682
• Description: USB 2.0 high-speed Flash drive controller
• Manufacturer: STMicroelectronics

Electrical characteristics
7.6.2
7.6.3
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Electromagnetic 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.
Table 17.
1. Refer to Application Note AN1709 for data on other package types.
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.
Electrostatic Discharge (ESD)
Electrostatic 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). This test
conforms to the JESD22-A114A/A115A standard.
Table 18.
1. Data based on characterization results, not tested in production.
Static and Dynamic Latch-Up
Symbol Parameter
V
Symbol
ESD(HBM)
S
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: Electrostatic 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.
EMI
Peak level
Electrostatic discharge voltage
(Human Body Model)
EMI characteristics
Absolute maximum ratings
V
conforming to SAE J 1752/3
DD33
Ratings
=3.3 V, T
Conditions
A
=+25 °C,
T
A
=+25°C
(1)
Conditions
SAE EMI Level
30 to 130 MHz
0.1 to 30 MHz
130 MHz to 1
Frequency
Monitored
Band
GHz
(f
OSC
Max vs.
www.DataSheet4U.com
at 12 MHz)
Maximum
20
25
25
value
4
2000
(1)
ST72682
dBµV
Unit
Unit
-
V