QST104 datasheet(30/45 Pages) STMICROELECTRONICS

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Electrical characteristics

QST104

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6.1.5

Pin input voltage

The input voltage measurement on a pin of the device is described in Figure 7.

Figure 7.

Pin input voltage

6.2

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.

VIN

Input pin

Table 20.

Thermal characteristics

Symbol

Ratings

Value

Unit

TSTG

Storage temperature range

−65 to +150

°C

Maximum junction temperature

Table 21.

Voltage characteristics

Symbol

Ratings

Maximum value

Unit

VDD − VSS Supply voltage

7.0

VIN

Input voltage on any pin (1)(2)

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, 10kΩ for I/Os).

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. For true open-drain

pads, there is no positive injection current, and the corresponding VIN maximum must always be

respected.

VSS−0.3 to VDD+0.3

VESD(HBM) Electrostatic discharge voltage (Human Body Model)

2000

VESD(CDM) Electrostatic discharge voltage (Charge Device Model)

500

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