MPC5553_07 datasheet(19/66 Pages) FREESCALE

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Electrical Characteristics

MPC5553 Microcontroller Data Sheet, Rev. 2.0

Freescale Semiconductor

3.8.2

I/O Pad VDD33 Current Specifications

The power consumption of the VDD33 supply dependents on the usage of the pins on all I/O segments. The

power consumption is the sum of all input and output pin VDD33 currents for all I/O segments. The output

pin VDD33 current can be calculated from Table 11 based on the voltage, frequency, and load on all fast

(pad_fc) pins. The input pin VDD33 current can be calculated from Table 11 based on the voltage,

frequency, and load on all pad_sh and pad_sh pins. Use linear scaling to calculate pin currents for voltage,

frequency, and load parameters that fall outside the values given in Table 11.

Table 11. VDD33 Pad Average DC Current

1 These values are estimated from simulation and not tested. Currents apply to output pins for the fast pads only and to input

pins for the slow and medium pads only.

Spec

Pad Type

Symbol

Frequency

(MHz)

Load2

(pF)

2 All loads are lumped.

VDD33

(V)

VDDE

(V)

Drive

Select

Current

(mA)

Inputs

Slow

I33_SH

0.5

3.6

5.5

0.003

Medium

I33_MH

0.5

3.6

5.5

0.003

Outputs

Fast

I33_FC

3.6

0.35

466

3.6

0.53

566

3.6

0.62

666

3.6

0.79

3.6

1.98

0.35

3.6

1.98

0.44

3.6

1.98

0.53

3.6

1.98

0.7

3.6

0.30

3.6

0.45

3.6

0.52

3.6

0.67

3.6

1.98

0.30

3.6

1.98

0.37

3.6

1.98

0.45

3.6

1.98

0.60

3.6

0.21

3.6

0.31

3.6

0.37

3.6

0.48

3.6

1.98

0.21

3.6

1.98

0.27

3.6

1.98

0.32

3.6

1.98

0.42

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