參數(shù)資料
型號： ST72651R4
英文描述： ST7 - LOW-POWER. FULL-SPEED USB 8-BIT MCU WITH 32K FLASH. 5K RAM. FLASH CARD I/F. TIMER. PWM. ADC. I2C
中文描述： ST7的-低功耗。全速USB 8位32K快閃微控制器。 5K內(nèi)存。閃存卡的I /樓計時器。脈寬調(diào)制。 ADC的。的I2C
文件頁數(shù)： 44/166頁
文件大小： 2089K
代理商： ST72651R4
ST7265x
138/166
EMC CHARACTERISTICS (Cont’d)
13.7.2 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.
Note 1. Data based on characterization results, not tested in production.
13.7.3 Absolute 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, re-
fer to the AN1181 ST7 application note.
13.7.3.1 Electro-Static Discharge (ESD)
Electro-Static Discharges (3 positive then 3 nega-
tive pulses 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 of the device (3 parts*(n+1)
supply pin). One model is simulated: Human Body
Model. This test conforms to the JESD22-A114A
standard. See Figure 80 and the following test se-
quence.
Human Body Model Test Sequence
– CL is loaded through S1 by the HV pulse gener-
ator.
– S1 switches position from generator to R.
– A discharge from CL through R (body resistance)
to the ST7 occurs.
– S2 must be closed 10 to 100ms after the pulse
delivery period to ensure the ST7 is not left in
charge state. S2 must be opened at least 10ms
prior to the delivery of the next pulse.
Absolute Maximum Ratings
Figure 80. Typical equivalent ESD Circuit
Note 1: Data based on characterization results, not tested in production.
Symbol
Parameter
Conditions
Monitored
Frequency Band
Max vs. [fOSC/fCPU]
Unit
3MHz
6MHz
SEMI
Peak level
VDD=5V, TA=+25°C,
TQFP64 package
conforming to SAE J 1752/3
0.1MHz to 30MHz
21
28
dB
V
30MHz to 130MHz
16
30
130MHz to 1GHz
8
31
SAE EMI Level
2
4
-
Symbol
Ratings
Conditions
Maximum value 1)
Unit
VESD(HBM)
Electro-static discharge voltage
(Human Body Model)
TA=+25°C
1500
V
ST7
S2
R=1500
S1
HIGH VOLTAGE
CL=100pF
PULSE
GENERATOR
HUMAN BODY MODEL
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