668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 258

• Manufacturer Part Number: 668-0011
• Description: IC MPU RABIT3000A 55.5MHZ128LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 668-0011

• Rohs Status: RoHS non-compliant
• Processor Type: Rabbit 3000 8-Bit
• Speed: 55.5MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Features: -
• Other names: 316-1043

27.5 Power and Current Consumption
Various mechanisms contribute to the current consumption of the Rabbit 3000 processor
while it is operating, including current that is proportional to the voltage alone (leakage
current) and dependent on both voltage and frequency (switching and crossover current).
To reduce current consumption, the clock can be divided down in one of the sleepy modes;
see Table 25-1 for more details.
Figure 27-6 shows a typical current draw as a function of the main clock frequency. The
values shown do not include any current consumed by external oscillators or memory. It is
assumed that approximately 30 pF is connected to each address line.
248
Figure 27-6. Typical Current Draw as a Function of the Main Clock Frequency at 3.3 V
120
100
80
60
40
20
0
0
10
20
Clock Frequency (MHz)
30
40
Rabbit 3000 Microprocessor User’s Manual
50
60
xtal=25.80
xtal=14.74
xtal=11.05
xtal=3.68