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| 型號(hào)： | ST7LITE19F1M6 |
| 英文描述： | ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI |
| 中文描述： | ST7LITE1 - 8單電壓閃存EEPROM的MEMORY.DATA位MCU。 ADC的。 4定時(shí)器。的SPI |
| 文件頁(yè)數(shù)： | 93/122頁(yè) |
| 文件大?。?/td> | 1716K |
| 代理商： | ST7LITE19F1M6 |
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ST7LITE0, ST7SUPERLITE
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EMC CHARACTERISTICS
(Cont’d)
13.7.3 ESD Pin Protection Strategy
To protect an integrated circuit against Electro-
Static Discharge the stress must be controlled to
prevent degradation or destruction of the circuit el-
ements. The stress generally affects the circuit el-
ements which are connected to the pads but can
also affect the internal devices when the supply
pads receive the stress. The elements to be pro-
tected must not receive excessive current, voltage
or heating within their structure.
An ESD network combines the different input and
output ESD protections. This network works, by al-
lowing safe discharge paths for the pins subjected
to ESD stress. Two critical ESD stress cases are
presented in
Figure 63
and
Figure 64
for standard
pins.
Standard Pin Protection
To protect the output structure the following ele-
ments are added:
– A diode to V
DD
(3a) and a diode from V
SS
(3b)
– A protection device between V
DD
and V
SS
(4)
To protect the input structure the following ele-
ments are added:
– A resistor in series with the pad (1)
– A diode to V
DD
(2a) and a diode from V
SS
(2b)
– A protection device between V
DD
and V
SS
(4)
Figure 63. Positive Stress on a Standard Pad vs. V
SS
Figure 64. Negative Stress on a Standard Pad vs. V
DD
IN
V
DD
V
SS
(1)
(2a)
(2b)
(4)
OUT
V
DD
V
SS
(3a)
(3b)
Main path
Path to avoid
IN
V
DD
V
SS
(1)
(2a)
(2b)
(4)
OUT
V
DD
V
SS
(3a)
(3b)
Main path
1
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| ST7LITE2 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI |
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