MC68340AB16E Datasheet, PDF (400/441 Pages) Motorola, Inc – Integrated Processor with DMA User’s Manual

Freescale Semiconductor, Inc.
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
Pd ≈ V2 × f + dc
Table 10-2 shows typical electrical characteristics for both the MC68340 and MC68340V.
Table 10-2. Typical Electrical Characteristics
Parameter
Clock Frequency
Typical Current (16 MHz)
Typical Current (8 MHz)
Standby Current
MC68340 (5.0 V)
0–16.78 MHz
0–25 MHz
95 mA
55 mA
60 µA
MC68340V (3.3 V)
0–8.39 MHz
0–16.78 MHz
TBD
30 mA
25 µA
Running at 3.3 V saves 66% of the power consumption.
The 3.3 V operation provides the following user advantages:
Advantage
Lower Supply Voltage
Fewer Batteries
Lower Current Drain
Less Heat Generated
Less EMF Radiation
High Functional Integration
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
These advantages result in a much more portable system.
MOTOROLA
MC68340 USER’S MANUAL
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Go to: www.freescale.com
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