ST7293 datasheet(53/69 Pages) 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:

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

VIN

Input Voltage

VSS -0.3 to VDD +0.3

IVDD -IVSS

Total current into VSS/VDD pins

50/20

Current drain per pin excluding VDD and VSS

Operating Temperature Range

TL to TH

0 to +70

°C

TSTG

Storage Temperature Range

-65 to +150

°C

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