ST72325AR7-Auto datasheet(191/243 Pages) STMICROELECTRONICS

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Electrical characteristics

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19.2.2

Current characteristics

19.2.3

Thermal characteristics

Table 106.

Current characteristics

Symbol

Ratings

Maximum value

Unit

IVDD /IVSS

(1)

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

Total current into VDD power lines

(source) and VSS ground lines (sink)

32-pin devices

44-/64-pin devices

150

IIO

Output current sunk by any standard I/O and control pin

Output current sunk by any high sink I/O pin

Output current source by any I/Os and control 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.

Negative injection may disturb the analog performance of the device. See Note 1 in Table 138: ADC

accuracy on page 222.

Injected current on VPP pin

± 5

Injected current on RESET pin

± 5

Injected current on OSC1 and OSC2 pins

± 5

Injected current on PB0 pin

+ 5

Injected current on any other pin(4)(5)

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

I

INJ(PIN) is the absolute sum of the

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

characterization with

I

INJ(PIN) maximum current injection on four I/O port pins of the device.

True open-drain I/O port pins do not accept positive injection.

± 5

I

INJ(PIN)

(2)

Total injected current (sum of all I/O and control pins)(4)

± 25

Table 107.

Thermal characteristics

Symbol

Ratings

Value

Unit

TSTG

Storage temperature range

-65 to +150

°C

Maximum junction temperature (see Section 20.2: Thermal characteristics)

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