ST7293C3B6 datasheet(39/69 Pages) STMICROELECTRONICS

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ST7294

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6 ELECTRICAL CHARACTERISTICS

6.1 ABSOLUTE MAXIMUM RATINGS

The ST7294 device contains circuitry to protect

the inputs against damage due to high static volt-

age or electric fields. Nevertheless, it is recom-

mended that normal precautions be observed and

that one should avoid subjecting such high-im-

pedance circuits to voltages higher than those

quoted in the Absolute Maximum Ratings, see Ta-

ble 10. For proper operation, it is recommended

that VIN and VOUT be constrained within the

range:

VSS ≤ VIN and VOUT ≤ VDD

To improve reliability, it is recommended that un-

used I/Os be configured as inputs and that they be

connected to an appropriate logic voltage level

such as VSS or VDD.

All voltages quoted in the following tables are ref-

erenced to VSS.

Stresses above those listed in the “Absolute Max-

imum 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 10. 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

(Depending on version)

TL to TH

0 to +70

or -40 to +85

°C

STG

Storage Temperature Range

-65 to +150

°C

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