ST72681 STMicroelectronics, ST72681 Datasheet - Page 23

• Manufacturer Part Number: ST72681
• Description: USB 2.0 HIGH-SPEED 8-BIT MCU FLASH DRIVE CONTROLLER
• Manufacturer: STMicroelectronics

ST72681
7.6.2
7.6.3
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 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
complies with EIA/JESD 78 IC latch-up specifications.
Table 19.
1. Class description: A Class is an STMicroelectronics internal specification. All its limits are higher than the
V
Symbol Parameter
M
Symbol
Symbol
ESD(HBM)
S
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).
EMI
LU
Peak level
Electrostatic discharge voltage (Human Body Model)
Static latch-up class
Electromagnetic interference
Absolute Maximum Ratings
Electrical sensitivity values
Parameter
V
complies with SAE J 1752/3
specifications
DD33
= 3.3 V, T
Conditions
Ratings
T
A
A
= +25 °C,
= +25 °C
(1)
0.1 MHz to 30 MHz
30 MHz to 130 MHz
130 MHz to 1 GHz
SAE EMI Level
Conditions
Frequency Band
Monitored
T
A
Conditions
= +25 °C
Electrical characteristics
[f
OSC
Max vs.
@12 MHz]
20
25
25
4
Max.
2000
Class
A
(1)
(1)
dBµV
Unit
23/34
Unit
-
V