Motorola Espresso Maker MC68340 ユーザーズマニュアル

MOTOROLA

10-13

The MC68340V can operate with a 3.3-V power supply for significant power savings. The
formula for power dissipation is

Pd 

≈

 V2 

×

 f + dc

Table 10-2 shows typical electrical characteristics for both the MC68340 and MC68340V.

Clock Frequency

0–16.78 MHz

0–25 MHz

0–8.39 MHz

0–16.78 MHz

Typical Current (16 MHz)

95 mA

TBD

Typical Current (8 MHz)

55 mA

30 mA

Standby Current

60 

µ

A

25 

µ

A

Running at 3.3 V saves 66% of the power consumption.

The 3.3 V operation provides the following user advantages:

Lower Supply Voltage

Fewer Batteries

Fewer Batteries

Less Weight
Smaller Size

Lower Current Drain

Extended Battery Life

Less Heat Generated

No Fan
No Fan Noise

Less EMF Radiation

Easier FCC Certification
Less Crosstalk
Closer PCB Traces

High Functional Integration

All-In-One 3.3 V Part:

Processor
Peripherals
Glue Logic

These advantages result in a much more portable system.

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Freescale Semiconductor, Inc.

For More Information On This Product,

   Go to: www.freescale.com

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