MPC8378CVRALGA datasheet(9/126 Pages) FREESCALE

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MPC8378E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

Electrical Characteristics

Figure 2 shows the undershoot and overshoot voltages at the interfaces of the device.

Figure 2. Overshoot/Undershoot Voltage for GVDD/OVDD/LVDD

2.1.3

Output Driver Characteristics

Table 4 provides information on the characteristics of the output driver strengths. The values are

preliminary estimates.

Table 4. Output Drive Capability

Driver Type 1

Specialized SerDes output capabilities are described in the relevant sections of these specifications (such as SGMII and

PCI Express)

Output Impedance (

Ω)

Supply Voltage

Local bus interface utilities signals

LBVDD = 2.5 V, 3.3 V

LBVDD = 1.8 V

PCI signals

OVDD = 3.3 V

DDR1 signal

GVDD = 2.5 V

DDR2 signal

GVDD = 1.8 V

eTSEC 10/100/1000 signals

LVDD = 2.5 V, 3.3 V

DUART, system control, I2C, JTAG, SPI, and USB

OVDD = 3.3 V

GPIO signals

OVDD = 3.3 V

GND

GND – 0.3 V

GND – 0.7 V

Not to Exceed 10%

G/L/OVDD + 20%

G/L/OVDD

G/L/OVDD + 5%

of tinterface1

1. Note that tinterface refers to the clock period associated with the bus clock interface.

VIH

VIL

Note:

2. Please note that with the PCI overshoot allowed (as specified above), the device does

not fully comply with the maximum AC ratings and device protection guideline outlined in

the

PCI Rev. 2.3 Specification (Section 4.2.2.3).

MPC8378CVRALGA 数据表(PDF) 9 Page - Freescale Semiconductor, Inc

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