MPC8313ECVRAFF / Freescale Semiconductor, Inc

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Part No.	MPC8313ECVRAFF
Manufacturer	FREESCALE
Size	1Mb
Pages	100 pages
Description	PowerQUICC??II Pro Processor Hardware Specifications

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1. Device Overview: MPC8313E

️· It's a processor (likely a communications processor or similar, given the extensive I/O and PLL references).
️· The document focuses on its electrical and power characteristics.

2. Power Sequencing

️· No strict order for core and I/O voltage ramps: The core voltage (V DD and V DDC ) and I/O voltage (GV DD, LV DD, and OV DD) don't *have* to be applied in any particular order.
️· Preventing Contention: It's recommended to apply the core voltage *before* the I/O voltages to avoid excessive current draw and contention on the I/O pins.
️· PORESET: PORESET should be asserted *before* the power supplies fully ramp up.
️· Timing: After the power supplies are stable, wait for at least 32 clock cycles before negating PORESET.

3. Electrical Characteristics

️· Output Driver Strengths: Provides information about the impedance of various output drivers, specific to different interfaces (Local bus, PCI, DDR, USB, etc.).
️· Overshoot/Undershoot Voltage: Defines acceptable voltage excursions for signal integrity.
️· Power Up sequencing Example A diagram shows the proper order of power voltage ramp.

4. Power Characteristics

️· Typical Power Dissipation: Estimates typical and maximum power dissipation for the processor core, under specific conditions (voltage, frequency, temperature).
️· Power Supply Voltages: Lists various supply voltages (VDD, VDD, GVDD, LVDD, etc.) and their associated ranges.
️· Key Voltages for Specialized Functions: Mentions voltages specifically for USB PLL, eLBC I/Os, etc.
️· Table 4: Total power consumption for various frequencies.
️· Table 3: Details output driver strengths.

Key Takeaways & Implications

️· Design Considerations: The document highlights important design considerations for power supply sequencing and signal integrity.
️· Power Budgeting: The power dissipation figures are crucial for thermal management and power supply design.
️· Signal Integrity: The voltage limits are essential for ensuring reliable communication on the various interfaces.

1. Device Overview: MPC8313E

️· It's a processor (likely a communications processor or similar, given the extensive I/O and PLL references).
️· The document focuses on its electrical and power characteristics.

2. Power Sequencing

️· No strict order for core and I/O voltage ramps: The core voltage (V DD and V DDC ) and I/O voltage (GV DD, LV DD, and OV DD) don't *have* to be applied in any particular order.
️· Preventing Contention: It's recommended to apply the core voltage *before* the I/O voltages to avoid excessive current draw and contention on the I/O pins.
️· PORESET: PORESET should be asserted *before* the power supplies fully ramp up.
️· Timing: After the power supplies are stable, wait for at least 32 clock cycles before negating PORESET.

3. Electrical Characteristics

️· Output Driver Strengths: Provides information about the impedance of various output drivers, specific to different interfaces (Local bus, PCI, DDR, USB, etc.).
️· Overshoot/Undershoot Voltage: Defines acceptable voltage excursions for signal integrity.
️· Power Up sequencing Example A diagram shows the proper order of power voltage ramp.

4. Power Characteristics

️· Typical Power Dissipation: Estimates typical and maximum power dissipation for the processor core, under specific conditions (voltage, frequency, temperature).
️· Power Supply Voltages: Lists various supply voltages (VDD, VDD, GVDD, LVDD, etc.) and their associated ranges.
️· Key Voltages for Specialized Functions: Mentions voltages specifically for USB PLL, eLBC I/Os, etc.
️· Table 4: Total power consumption for various frequencies.
️· Table 3: Details output driver strengths.

Key Takeaways & Implications

️· Design Considerations: The document highlights important design considerations for power supply sequencing and signal integrity.
️· Power Budgeting: The power dissipation figures are crucial for thermal management and power supply design.
️· Signal Integrity: The voltage limits are essential for ensuring reliable communication on the various interfaces.