Electrical Characteristics

MCF51QE128 Series Data Sheet, Rev. 7

Freescale Semiconductor

9

3

Electrical Characteristics

3.1

Introduction

This section contains electrical and timing specifications for the MCF51QE128 series of microcontrollers available at the time

of publication.

3.2

Parameter Classification

The electrical parameters shown in this supplement are guaranteed by various methods. To give the customer a better

understanding the following classification is used and the parameters are tagged accordingly in the tables where appropriate:

NOTE

The classification is shown in the column labeled “C” in the parameter tables where

appropriate.

3.3

Absolute Maximum Ratings

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

limits specified in Table 4 may affect device reliability or cause permanent damage to the device. For functional operating

conditions, refer to the remaining tables in this section.

This device contains circuitry protecting against damage due to high static voltage or electrical fields; however, it is advised

that normal precautions be taken to avoid application of any voltages higher than maximum-rated voltages to this

high-impedance circuit. Reliability of operation is enhanced if unused inputs are tied to an appropriate logic voltage level (for

in SOPT2. Default locations are PTB5, PTB4, PTB3, and PTB2.

locations are PTA3 and PTA2, respectively.

Table 3. Parameter Classifications

P

Those parameters are guaranteed during production testing on each individual device.

C

Those parameters are achieved by the design characterization by measuring a statistically relevant sample

size across process variations.

T

Those parameters are achieved by design characterization on a small sample size from typical devices

under typical conditions unless otherwise noted. All values shown in the typical column are within this

category.

D

Those parameters are derived mainly from simulations.