MPC8349VVAGDB View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MPC8349VVAGDB

PowerQUICC II Pro Integrated Host Processor Hardware Specifications

Freescale Semiconductor 

Electrical Characteristics

Figure 3 shows the undershoot and overshoot voltage of the PCI interface of the MPC8349EA for the

3.3-V signals, respectively.

11 ns

(Min)

+7.1 V

Overvoltage

Waveform

7.1 V p-to-p

(Min)

4 ns

(Max)

0V

4 ns

(Max)

62.5 ns

+3.6 V

Undervoltage

Waveform

7.1 V p-to-p

(Min)

–3.5 V

Figure 3. Maximum AC Waveforms on PCI Interface for 3.3-V Signaling

2.1.3 Output Driver Characteristics

Table 3 provides information on the characteristics of the output driver strengths. The values are

preliminary estimates.

Table 3. Output Drive Capability

Driver Type

Local bus interface utilities signals

PCI signals (not including PCI output clocks)

PCI output clocks (including PCI_SYNC_OUT)

DDR signal

DDR2 signal

TSEC/10/100 signals

DUART, system control, I2C, JTAG, USB

GPIO signals

Output Impedance

(Ω)

40

25

40

18

18

36 (half-strength mode)

40

40

40

Supply

Voltage

OVDD = 3.3 V

GVDD = 2.5 V

GVDD = 1.8 V

LVDD = 2.5/3.3 V

OVDD = 3.3 V

OVDD = 3.3 V,

LVDD = 2.5/3.3 V

2.2 Power Sequencing

This section details the power sequencing considerations for the MPC8349EA.

2.2.1 Power-Up Sequencing

MPC8349EA does not require the core supply voltage (VDD and AVDD) and I/O supply voltages (GVDD,

LVDD, and OVDD) to be applied in any particular order. During the power ramp up, before the power

MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13

Freescale Semiconductor

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