ST7MC1K2-Auto datasheet(313/371 Pages) STMICROELECTRONICS

313 / 371 page

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Electrical characteristics

313/371

Figure 130. Pin input voltage

12.2

Absolute maximum ratings

Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of the device under these conditions is not implied.

Exposure to maximum rating conditions for extended periods may affect device reliability.

12.2.1

Voltage characteristics

VIN

ST7 PIN

Table 186.

Voltage characteristics

Symbol

Ratings

Maximum value

Unit

VDD - VSS

Supply voltage

6.5

VPP - VSS

Programming voltage

VIN

Input voltage on any pin(1)(2)

VSS-0.3 to VDD+0.3

∆V

DDx| and |∆VSSx|

Variations between different digital power pins

|VSSA - VSSx|

Variations between digital and analog ground pins

VESD(HBM)

Electro-static discharge voltage (Human body model)

See Section 12.7.3: Absolute

maximum ratings (electrical

sensitivity) on page 327

VESD(MM)

Electro-static discharge voltage (Machine model)

Directly connecting the RESET and I/O pins to VDD or VSS could damage the device if an unintentional internal reset is

generated or an unexpected change of the I/O configuration occurs (for example, due to a corrupted program counter). To

guarantee safe operation, this connection has to be done through a pull-up or pull-down resistor (typical: 4.7k

Ω for RESET,

10k

Ω for I/Os). For the same reason, unused I/O pins must not be directly tied to V

DD or VSS.

IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum cannot be

respected, the injection current must be limited externally to the IINJ(PIN) value. A positive injection is induced by VIN >VDD

while a negative injection is induced by VIN <VSS.

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