MPC8347 FREESCALE [Freescale Semiconductor, Inc], MPC8347 Datasheet - Page 10

• Manufacturer Part Number: MPC8347
• Description: Integrated Host Processor Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Electrical Characteristics
2.2
Power Sequencing
MPC8347EA does not require the core supply voltage and I/O supply voltages to be applied in any
particular order. Note that during the power ramp up, before the power supplies are stable, there may be a
period of time that I/O pins are actively driven. After the power is stable, as long as PORESET is asserted,
most I/O pins are tri-stated. To minimize the time that I/O pins are actively driven, it is recommended to
apply core voltage before I/O voltage and assert PORESET before the power supplies fully ramp up.
MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 3
10
Freescale Semiconductor