MCF5329DS ANALOGICTECH [Advanced Analogic Technologies], MCF5329DS Datasheet - Page 20

• Manufacturer Part Number: MCF5329DS
• Description: MCF5329 ColdFire Microprocessor Data Sheet
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Preliminary Electrical Characteristics
5.4.3.1
If EV
pad output drivers connected to the EV
how long after EV
SDV
ESD protection diodes. The rise times on the power supplies should be slower than 1 µs to avoid turning
on the internal ESD protection clamp diodes.
The recommended power up sequence is as follows:
5.4.3.2
If IV
to be in a high impedance state. There is no limit on how long after IV
EV
than 0.4 V during power down or there will be undesired high current in the ESD protection diodes. There
are no requirements for the fall times of the power supplies.
The recommended power down sequence is as follows:
5.5
Estimated maximum RUN mode power consumption measurements are shown in the below figure.
20
DD
1. Use 1 µs or slower rise time for all supplies.
2. IV
1. Drop IV
2. Drop EV
DD
DD
DD
or SDV
ramps with EV
use a low drop-out voltage regulator.
/PLLV
or PLLV
/SDV
Power Consumption Specifications
DD
Power Up Sequence
Power Down Sequence
/PLLV
DD
DD
DD
DD
DD
DD
are powered up with IV
must power down. IV
are powered down first, then sense circuits in the I/O pads will cause all output drivers
DD
/PLLV
/SDV
DD
by more than 0.4 V during power ramp-up, or there will be high current in the internal
/SDV
DD
and EV
DD
/SD V
DD
DD
MCF5329 ColdFire
supplies.
to 0 V.
powers up before IV
DD
DD
/SDV
going to the higher external voltages. One way to accomplish this is to
DD
DD
DD
DD
/SDV
should not lag EV
should track up to 0.9 V, then separate for the completion of
®
at 0 V, then the sense circuits in the I/O pads will cause all
Microprocessor Data Sheet, Rev. 0.1
Preliminary
DD
DD
to be in a high impedance state. There is no limit on
must powered up. IV
DD
, SDV
DD
DD
and PLLV
, or PLLV
DD
should not lead the EV
DD
DD
Freescale Semiconductor
power down before
going low by more
DD
,