MPC5646C datasheet(65/114 Pages) FREESCALE

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MPC5646C Microcontroller Data Sheet, Rev. 3

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

4.11.3.2

Static latch-up (LU)

Two complementary static tests are required on six parts to assess the latch-up performance:

•

A supply over-voltage is applied to each power supply pin.

•

A current injection is applied to each input, output and configurable I/O pin.

These tests are compliant with the EIA/JESD 78 IC latch-up standard.

4.12

Fast external crystal oscillator (4–40 MHz) electrical

characteristics

The device provides an oscillator/resonator driver. Figure 10 describes a simple model of the internal oscillator driver and

provides an example of a connection for an oscillator or a resonator.

Table 34 provides the parameter description of 4 MHz to 40 MHz crystals used for the design simulations.

Figure 10. Crystal oscillator and resonator connection scheme

NOTE

XTAL/EXTAL must not be directly used to drive external circuits.

Table 33. Latch-up results

Symbol

Parameter

Conditions

Class

Static latch-up class

TA = 125 °C

conforming to JESD 78

II level A

XTAL

EXTAL

XTAL

EXTAL

DEVICE

EXTAL

XTAL

VDD

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