MPC5644B View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MPC5644B' PDF : 114 Pages View PDF
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.
Table 33. Latch-up results
Symbol
LU
Parameter
Static latch-up class
Conditions
TA = 125 °C
conforming to JESD 78
Class
II level A
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.
XTAL
VDD
I
R
DEVICE
EXTAL
EXTAL
C1
XTAL
DEVICE
RD
C2
EXTAL
XTAL
DEVICE
Figure 10. Crystal oscillator and resonator connection scheme
NOTE
XTAL/EXTAL must not be directly used to drive external circuits.
MPC5646C Microcontroller Data Sheet, Rev. 3
Freescale Semiconductor
Preliminary—Subject to Change Without Notice
65
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