ST92F124 datasheet(374/426 Pages) STMICROELECTRONICS

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ST92F124/F150/F250 - ELECTRICAL CHARACTERISTICS

11 ELECTRICAL CHARACTERISTICS

This product contains devices to protect the inputs

against damage due to high static voltages, how-

ever it is advisable to take normal precautions to

avoid application of any voltage higher than the

specified maximum rated voltages.

For proper operation it is recommended that VIN

and VO be higher than VSS and lower than VDD.

Reliability is enhanced if unused inputs are con-

nected to an appropriate logic voltage level (VDD

or VSS).

Power Considerations. The average chip-junc-

tion temperature, TJ, in Celsius can be obtained

from:

TJ =TA + PD x RthJA

Where: TA =

Ambient Temperature.

RthJA = Package thermal resistance

(junction-to ambient).

PD =

PINT + PPORT.

PINT =IDD x VDD (chip internal power).

PPORT = Port power dissipation

(determined by the user)

ABSOLUTE MAXIMUM RATINGS

Notes:

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 at these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect

device reliability. All voltages are referenced to VSS = 0 V.

Note 1: Pin injection current occurs when the voltage on any pin exceeds the specified range.

Note 2: Value guaranteed by design.

THERMAL CHARACTERISTICS

Symbol

Parameter

Value

Unit

VDD

Supply Voltage

– 0.3 to 6.5

AVDD

ADC Reference Voltage

VSS to VDD + 0.3

AVSS

ADC Ground

VSS

VIN

Input Voltage (all pins except pure open drain I/O pins)

– 0.3 to VDD + 0.3

VINOD

Input Voltage (pure open drain I/O pins)

– 0.3 to 6.5

VAIN

Analog Input Voltage (ADC inputs)

-0.3 to AVDD + 0.3

TSTG

Storage Temperature

– 55 to +150

°C

⎥I

IO⎥

Load Current

10 (2)

⎥I

INJ⎥

Pin Injection Current - Digital and Analog Inputs (1)

10 (2)

⎥I

TINJ⎥

Absolute sum of all Pin Injection Current in the device

100 (2)

Symbol

Package

Value

Unit

RthJA

TQFP64

PQFP100

TQFP100

°C/W

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