DSP56303 datasheet(21/108 Pages) FREESCALE

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DSP56303 Technical Data, Rev. 11

Freescale Semiconductor

2-1

Specifications

The

DSP56303 is fabricated in high-density CMOS with transistor-transistor logic (TTL) compatible inputs and outputs.

2.1 Maximum Ratings

In the calculation of timing requirements, adding a maximum value of one specification to a minimum value of

another specification does not yield a reasonable sum. A maximum specification is calculated using a worst case

variation of process parameter values in one direction. The minimum specification is calculated using the worst

case for the same parameters in the opposite direction. Therefore, a “maximum” value for a specification never

occurs in the same device that has a “minimum” value for another specification; adding a maximum to a minimum

represents a condition that can never exist.

2.2 Absolute Maximum Ratings

CAUTION

This

device

contains

circuitry

protecting

against damage due to high static voltage or

electrical fields; however, normal precautions

should be taken to avoid exceeding maximum

voltage ratings. Reliability is enhanced if

unused inputs are tied to an appropriate logic

voltage level (for example, either GND or VCC).

Table 2-1.

Absolute Maximum Ratings1

Rating

Symbol

Value

Unit

Supply Voltage

VCC

−0.3 to +4.0

All input voltages excluding “5 V tolerant” inputs

VIN

GND

−0.3 to V

CC + 0.3

All “5 V tolerant” input voltages2

VIN5

GND

−0.3 to 5.5

Current drain per pin excluding VCC and GND

Operating temperature range

−40 to +100

°C

Storage temperature

TSTG

−55 to +150

°C

Notes:

Absolute maximum ratings are stress ratings only, and functional operation at the maximum is not guaranteed. Stress beyond

the maximum rating may affect device reliability or cause permanent damage to the device.

At power-up, ensure that the voltage difference between the 5 V tolerant pins and the chip VCC never exceeds 3.5 V.

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