Satellites have limited power budgets due to the amount of power
collected by the satellites solar panels. The goal is to have a
wide range of functionality, while running off a limited power
source. Large microprocessors use large amounts of power to report
back temperature and chemical sensor data to ground stations. By
using small microcontrollers to perform the data collection and
minimizing the usage of the larger microprocessors, the satellites
will save power. A prototype design of the Microdot 4-bit
microcontroller for space applications is presented. Requirements
for the Microdot, such as microwatt power consumption and 23
different instructions, are based on research completed at
AFRL/VSSE, Air Force Research Laboratory at Kirtland AFB, NM. A
brief history of 4-bit microcontrollers and microprocessors, the
synchronous design methodologies used, and space-based integrated
circuit issues are presented. Various CAD tools were used,
implementing both standard cell and full custom logic into the
design. The prototype Microdot was fabricated at TSMC using MOSIS
to validate the design implementation. Results from high fidelity
simulations indicate the Microdot design has a power consumption of
16.3 mW operating at I kHz and consumes 22 mW when operating at the
maximum operating clock frequency of 20 MHz. These results indicate
that the Microdot can be implemented into space-based systems,
while exhibiting low power usage.
General
| Imprint: |
Biblioscholar
|
| Country of origin: |
United States |
| Release date: |
October 2012 |
| First published: |
October 2012 |
| Authors: |
Kirby Michael Watson
|
| Dimensions: |
246 x 189 x 9mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
174 |
| ISBN-13: |
978-1-249-59318-8 |
| Categories: |
Books >
Social sciences >
Education >
General
Promotions
|
| LSN: |
1-249-59318-2 |
| Barcode: |
9781249593188 |
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