參數(shù)資料
型號： ST72C171K2
廠商： 意法半導(dǎo)體
英文描述： 8-BIT MCU WITH 8K FLASH. ADC. WDG. SPI. SCI. TIMERS SPGAS (SOFTWARE PROGRAMMABLE GAIN AMPLIFIERS). OP-AMP
中文描述： 8位8K閃存微控制器。 ADC的。水分散粒劑。的SPI。脊髓損傷。定時器SPGAS（軟件可編程增益放大器）。運(yùn)放
文件頁數(shù)： 125/152頁
文件大?。?/td> 1384K
代理商： ST72C171K2
ST72C171
125/152
EMC CHARACTERISTICS
(Cont’d)
9.7.2 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.
9.7.2.1 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 of the
number of supply pins of the device (3 parts*(n+1)
supply pin). Two models are usually simulated:
Human Body Model and Machine Model. This test
conforms to the JESD22-A114A/A115A standard.
See
Figure 74
and the following test sequences.
Human Body Model Test Sequence
– C
L
is loaded through S1 by the HV pulse gener-
ator.
– S1 switches position from generator to R.
– A discharge from C
L
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.
Machine Model Test Sequence
– C
L
is loaded through S1 by the HV pulse gener-
ator.
– S1 switches position from generator to ST7.
– A discharge from C
L
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.
– R (machine resistance), in series with S2, en-
sures a slow discharge of the ST7.
Absolute Maximum Ratings
Figure 74. Typical Equivalent ESD Circuits
Notes:
1. Data based on characterization results, not tested in production.
Symbol
Ratings
Conditions
Maximum value
1)
Unit
V
ESD(HBM)
Electro-static discharge voltage
(Human Body Model)
Electro-static discharge voltage
(Machine Model)
T
A
=
+25°C
2000
V
V
ESD(MM)
T
A
=
+25°C
200
ST7
S2
R=1500
S1
HIGH VOLTAGE
PULSE
GENERATOR
C
L
=
100pF
ST7
S2
HIGH VOLTAGE
PULSE
GENERATOR
C
L
=
200pF
R
S1
HUMAN BODY MODEL
MACHINE MODEL
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