QST108 datasheet(31/51 Pages) STMICROELECTRONICS

31 / 51 page

QST108

Electrical characteristics

31/51

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.

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. 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).

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

Table 22.

Current characteristics

Symbol

Ratings

Maximum value

Unit

IVDD

Total current into VDD power lines (source)

(1)

All power (VDD) and ground (VSS) lines must always be connected to the external supply.

IVSS

Total current out of VSS ground lines (sink)

(1)

150

IIO

Output current sunk by RESET pin

Output current sunk by output pin

Output current source by output pin

− 25

IINJ(PIN)

(2)(3)

IINJ(PIN) must never be exceeded. This is implicitly ensured 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.

When several inputs are submitted to a current injection, the maximum

ΣI

INJ(PIN) is the absolute sum of the

positive and negative injected currents (instantaneous values). These results are based on

characterisation with

ΣI

INJ(PIN) maximum current injection on four KOUT pins of the device.

Injected current on RESET pin

± 5

Injected current output pin

± 5

ΣI

INJ(PIN)

(2)

Total injected current (sum of all I/O and control

pins)

± 20

QST108 Datasheet(PDF) 31 Page - STMicroelectronics

QST108 Datasheet(HTML) 31 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Datasheet Download

Link URL