668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 211
668-0011
Manufacturer Part Number
668-0011
Description
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
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25.1 Overview
The Rabbit 3000 contains several power-saving features. Since the power consumed by
the processor is proportional to the clock speed, the Rabbit 3000 provides 12 clock modes
that can go as low as 2 kHz. To further reduce power consumption in those ultra-sleepy
modes, various shortened chip select strobes are available to reduce current draw by the
attached memory devices.
Figure 25-1 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.
Chapter 25 Low-Power Operation
120
100
80
60
40
20
0
Figure 25-1. Rabbit 3000 System Current vs. Frequency at 3.3 V
0
10
25. L
20
Clock Frequency (MHz)
OW
30
-P
40
OWER
50
O
PERATION
60
xtal=25.80
xtal=14.74
xtal=11.05
xtal=3.68
201
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