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ST7285C Datasheet(HTML) 86 Page - STMicroelectronics

Part No. ST7285C
Description  8-BIT MCU FOR RDS WITH 48K ROM, 3K RAM, ADC, TWO TIMERS, TWO SPIs, I2C AND SCI INTERFACES
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST7285C Datasheet(HTML) 86 Page - STMicroelectronics

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ST7285C
6 ELECTRICAL CHARACTERISTICS
6.1 ABSOLUTE MAXIMUM RATINGS
Devices of the ST72 family contain circuitry to pro-
tect the inputs against damage due to high static
voltage or electric fields. Nevertheless, it is recom-
mended that normal precautions be observed in
order to avoid subjecting this high-impedance cir-
cuit to voltages above those quoted in the Abso-
lute Maximum Ratings. For proper operation, it is
recommended that VIN and VOUT be constrained
within the range:
VSS ≤ 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 VSS or VDD.
All the voltage in the following tables are refer-
enced to VSS.
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.
Absolute Maximum Ratings (Voltage Referenced to VSS)
Symbol
Ratings
Value
Unit
V
DD/VDDA/VDDP
Supply Voltage
0.3 to +6
V
|V
DDA - VDD|
Supply Voltage
< 50
mV
VIN
Input Voltage
VSS - 0.3 to VDD + 0.3
V
IVDD -IVSS
Total current into V
DD/VSS pins
50/20
mA
I
Current Drain per Pin Excluding
VDD and VSS
20
mA
TA
Maximum Operating Temperature
Range
TL to TH
-40to +85
°C
T
STG
Storage Temperature Range
-65 to +150
°C
V
HV
High voltage on pins PH3, PH4,
PH5
10
V


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