MPC5668X datasheet(35/66 Pages) FREESCALE

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Electrical Characteristics

MPC5668x Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

4.7.1

I/O Pad VDD33 Current Specifications

The power consumption of the VDD33 supply is dependent 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 Pad F pins. The input pin VDD33 current can be calculated from

Table 11 based on the voltage, frequency, and load on all Pad MH 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. I/O Pad Average IDD33 Specifications

1 These are typical values that are estimated from simulation and not tested. Currents apply to output pins only.

Spec

Pad

Type2

2 Slow = SH or SHA; Medium = MH or MHA; Fast = F; Input = IHA. See Table 2.

Symbol

Period

(ns)

Load3

(pF)

3 All loads are lumped.

Drive

Select

IDD33 Avg

(µA)

IDD33 RMS

(µA)

Slow

IDRV_SSR_HV

100

0.8

235.7

200

0.04

87.4

800

0.06

47.4

800

200

0.009

Medium

IDRV_MSR_HV

TBD

100

0.11

76.5

500

0.02

56.2

500

200

0.01

56.2

Input

IDRV_I_HV

70.5

N/A

TBD

Table 12. IDD33 Pad Average DC Current

1 These are typical values that are estimated from simulation and not tested. Currents apply to output pins only.

Spec

Pad

Type2

2 Slow = SH or SHA; Medium = MH or MHA; Fast = F; Input = IHA. See Table 2.

Symbol

Period

(ns)

Load3

(pF)

3 All loads are lumped.

VDD33

(V)

VDDE

(V)

Drive

Select

IDD33 Avg

(µA)

IDD33 RMS

(µA)

Fast

IDRV_FC

3.6

3.32

11.77

3.6

2.28

7.07

3.6

1.73

5.75

3.6

1.39

4.77

3.6

2.75

2.3

7.81

3.6

2.75

1.64

4.96

3.6

2.75

1.37

4.31

3.6

2.75

1.06

4.09

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