st72324bk STMicroelectronics, st72324bk Datasheet - Page 127

• Manufacturer Part Number: st72324bk
• Description: 3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
• Manufacturer: STMicroelectronics

ST72323 ST72323L
11.7.2
11.7.3
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 75.
1. Data based on characterization results, not tested in production.
2. Refer to Application Note AN1709 for data on other package types.
Absolute maximum ratings (electrical sensitivity)
Based on two different tests (ESD and LU) using specific measurement methods, the
product is stressed in order to determine its performance in terms of electrical sensitivity. .
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). Two models
can be simulated: Human Body Model and Machine Model. This test conforms to the
JESD22-A114A/A115A standard. For more details, refer to the application note AN1181.
Table 76.
1. Data based on characterization results, not tested in production.
Symbol Parameter
V
V
V
S
Symbol
ESD(HBM)
ESD(MM)
ESD(CD)
EMI
Peak level
EMI emissions
ESD absolute maximum ratings
Electrostatic discharge voltage
(human body model)
Electrostatic discharge voltage
(machine model)
Electrostatic discharge voltage
(charged device model)
V
T
conforming to
SAE J 1752/3
Conditions
A
DD
= +25 °C
Ratings
= 5 V,
(1)
LQFP44
LQFP32
package
Device/
(2)
T
T
T
A
A
A
0.1 MHz to 30 MHz
30 MHz to 130 MHz
130 MHz to 1 GHz
SAE EMI level
0.1 MHz to 30 MHz
30 MHz to 130 MHz
130 MHz to 1 GHz
SAE EMI level
= +25 °C
= +25 °C
= +25 °C
frequency band
Monitored
Conditions
Electrical characteristics
8/4 MHz 16/8 MHz
3.0
3.0
16
24
14
12
23
15
[f
Max vs.
OSC
Maximum
value
/f
2000
200
500
CPU
3.5
3.5
21
29
21
15
26
20
(1)
]
127/167
dBµV
dBµV
Unit
Unit
V
-
-