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ST7293 bảng dữ liệu(PDF) 53 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  8-BIT MCU WITH 6K ROM, EEPROM AND 16-BIT TIMER WITH INPUT CAPTURE AND DUAL OUTPUT COMPARE
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ST7293 bảng dữ liệu(HTML) 53 Page - STMicroelectronics

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ST72E94 - ST72T94
2 ELECTRICAL CHARACTERISTICS
2.1 ABSOLUTE MAXIMUM RATINGS
The ST72E94/T94 devices contain circuitry to pro-
tect the inputs against damage due to high static
voltage or electric field. Nevertheless it is advised
to take normal precautions and to avoid applying
to this high impedance voltage circuit any voltage
higher than the maximum rated voltages. It is rec-
ommended for proper operation that V
IN and VOUT
be constraint to the range:
V
SS ≤ VIN and VOUT ≤ VDD
To enhance reliability of operation, it is recom-
mended to configure unused I/Os as inputs and to
connect them to an appropriate logic voltage level
such as V
SS or VDD.
All the voltage in the following tables are refer-
enced to V
SS.
Stresses above those listed as “Absolute Maxi-
mum Ratings” may cause permanent damage to
the device. Functional operation of the device at
these conditions is not implied. Exposure to maxi-
mum rating conditions for extended periods may
affect device reliability.
Table 2. Absolute Maximum Rating (Voltage Referenced to V
SS)
Symbol
Ratings
Value
Unit
VDD
Supply Voltage
-0.3 to +6V
V
VIN
Input Voltage
VSS -0.3 to VDD +0.3
V
IVDD -IVSS
Total current into VSS/VDD pins
50/20
mA
I
Current drain per pin excluding VDD and VSS
20
mA
TA
Operating Temperature Range
TL to TH
0 to +70
°C
TSTG
Storage Temperature Range
-65 to +150
°C



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