MPC8308CVMADDA datasheet(7/88 Pages) FREESCALE

7 / 88 page

MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 0

Freescale Semiconductor

Clock Input Timing

Table 5 describes a typical scenario where blocks with the stated percentage of utilization and impedances

consume the amount of power described.

Clock Input Timing

This section provides the clock input DC and AC electrical characteristics for the device.

4.1

DC Electrical Characteristics

Table 6 provides the system clock input (SYS_CLK_IN) DC Electrical specifications for the device.

Table 7 provides the RTC clock input (RTC_PIT_CLOCK) DC Electrical specifications for the device.

Table 5. MPC8308 Typical I/O Power Dissipation

Interface

Parameter

GVDD

(1.8 V)

NVDD

(3.3 V)

LVDD/

(3.3 V)

LVDD

(2.5 V)

Unit

Comments

DDR2

Rs = 22 Ω

Rt = 75 Ω

250 MHz

32 bits+ECC

266 MHz

32 bits+ECC

0.302

0.309

——

—

Local bus I/O load = 20 pF

62.5 MHz

66 MHZ

—0.038

0.040

——

—

TSEC I/O load = 20 pF

MII,

25 MHz

—

0.008

—

2 controllers

RGMII,

125 MHz

—

0.078

0.044

eSDHC IO Load = 40 pF

50 MHz

—

0.008

—

USB IO Load = 20 pF

60 MHz

—

0.012

—

Other I/O

—

0.017

—

Table 6. SYS_CLK_IN DC Electrical Characteristics

Parameter

Condition

Symbol

Min

Max

Unit

Input high voltage

—

VIH

2.4

NVDD +0.3

Input low voltage

—

VIL

–0.3

0.4

SYS_CLK_IN input current

0 V

≤ V

IN ≤ NVDD

IIN

—±10

μA

Table 7. RTC_PIT_CLOCK DC Electrical Characteristics

Parameter

Condition

Symbol

Min

Max

Unit

Input high voltage

—

VIH

3.3V – 400 mV

Input low voltage

—

VIL

00.4

MPC8308CVMADDA Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc

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