MSC8254 datasheet(24/68 Pages) FREESCALE

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MSC8254 Quad-Core Digital Signal Processor Data Sheet, Rev. 2

Electrical Characteristics

Freescale Semiconductor

2.2

Recommended Operating Conditions

Table 3 lists recommended operating conditions. Proper device operation outside of these conditions is not guaranteed.

Table 3. Recommended Operating Conditions

Rating

Symbol

Min

Nominal

Max

Unit

Core supply voltage

VDD

0.97

1.0

1.05

M3 memory supply voltage

VDDM3

0.97

1.0

1.05

DDR memory supply voltage

• DDR2 mode

• DDR3 mode

DDR reference voltage

VDDDDR

MVREF

1.7

1.425

0.49

× VDDDDR

1.8

1.5

0.5

× VDDDDR

1.9

1.575

0.51

× VDDDDR

I/O voltage excluding DDR and

RapidIO lines

VDDIO

2.375

2.5

2.625

Rapid I/O pad voltage

VDDSXP

0.97

1.0

1.05

Rapid I/O core voltage

VDDSXC

0.97

1.0

1.05

Operating temperature range:

• Standard

• Higher

• Extended

–40

—

105

—

105

°C

Typical power:

• 1 GHz at 1.0 V1

• 800 MHz at 1.0 V2

—

4.77

4.4

—

Notes:

The typical power values are derived for a device running under the following conditions.

•

Four cores running at 1 GHz, Core voltage at 1V, 75% utilization (50% control/50% DSP).

•

A single 64 bit DDR3 running at 800 MHz, 50% utilization (50% reads/50% writes).

•

M3 Memory 50% utilized, PCI Express controller disabled, TDM enabled 20% loading, Serial RapidIO controller

disabled, 1 RGMII at 1 Gbps 50% loading.

•

A junction temperature of 60°C.

The typical power values are derived for a device running under the following conditions.

•

Four cores running at 800 MHz, Core voltage at 1V, 75% utilization (50% control/50% DSP).

•

A single 64 bit DDR3 running at 800 MHz, 50% utilization (50% reads/50% writes).

•

M3 Memory 50% utilized, PCI Express controller disabled, TDM enabled 20% loading, Serial RapidIO controller

disabled, 1 RGMII at 1 Gbps 50% loading.

•

A junction temperature of 60°C.

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