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10.3.2 MC68340V (3.3 V)
The MC68340V can operate with a 3.3-V power supply for significant power savings. The
formula for power dissipation is
Table 10-2 shows typical electrical characteristics for both the MC68340 and MC68340V.
Parameter
Clock Frequency
Typical Current (16 MHz)
Typical Current (8 MHz)
Standby Current
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
Lower Current Drain
Less Heat Generated
Less EMF Radiation
High Functional Integration
These advantages result in a much more portable system.
MOTOROLA
Freescale Semiconductor, Inc.
V 2
P d
Table 10-2. Typical Electrical Characteristics
MC68340 (5.0 V)
0–16.78 MHz
0–25 MHz
Advantage
MC68340 USER'S MANUAL
For More Information On This Product,
Go to: www.freescale.com
f + dc
MC68340V (3.3 V)
0–8.39 MHz
0–16.78 MHz
95 mA
55 mA
30 mA
60 A
25 A
Benefit
Fewer Batteries
Less Weight
Smaller Size
Extended Battery Life
No Fan
No Fan Noise
Easier FCC Certification
Less Crosstalk
Closer PCB Traces
All-In-One 3.3 V Part:
Processor
Peripherals
Glue Logic
TBD
10-13
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