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Microprocessor Circuits
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Microprocessors: #'s
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Last Updated on:
Wednesday, November 29, 2017 05:40 AM |
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Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
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µC measures High-frequency signals - 03/02/98 EDN-Design
Ideas....To measure a high-frequency signal using an 8-bit µC, the time
period of the measured frequency must be relatively close to the internal
clock of the µC. For example, if the internal clock period is 1 �sec,
then.…File contains many circuits, please scroll to find this
one....[Design Idea by Stan D'Souza, Microchip Technology Inc, Chandler,
AZ] |
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µC provides analog data to PLC chip - 07/03/97 EDN-Design
Ideas....The low price of programmable-logic controllers (PLCs] makes
these small devices a good choice for many system designs. Most of the
controllers, however, accommodate only digital inputs. One such.… [Design
Idea by Luke Barker, Reinke Mfg Co, Deshler, NE] |
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µC provides
three-key, five-sequence lock function - 12/03/98 EDN-Design
Ideas....Using MicroChip's 12-C508 eight-pin �C, you can inexpensively
implement a digital-sequence lock with debounce and status-indicator
features (Figure 1). The design exploits the internal-oscillator….File has
several circuits, scroll to this one....[Design Idea by William Grill,
Riverhead Systems, Littleton, CO William Grill, Riverhead Systems,
Littleton, CO] |
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µC Provides Wireless Keypad Control - 10/08/98 EDN-Design Ideas....Portable
systems, such as telephone handsets, make extensive use of low-dropout (LDO]regulators.
se components provide noise-sensitive parts with a stable power-supply line....Scroll
to find this specific article....[Design Idea by Lloyd Khuc, Motorola Inc, Austin, TX] |
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µC reprograms audio DAC via serial interface - 01/07/99 Issue of
EDN You can use a simple µC to continuously program an audio DAC so
that it operates in a 20-bit resolution mode ( Figure 1 ]. After power-on,
PCM1710 delta-sigma DAC (Burr-Brown Corp, www.burr-brown.com]operates in its
default 16-bit resolution....Page includes several designs. Scroll to
find this one....[Design Idea by Lukasz Sliwczynski, University of Mining
and Metallurgy, Institute of Electronics, Cracow, Poland] |
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µC routines clear up errors - 11/10/94 EDN-Design Ideas....The
ZIPfile attached to EDN BBS /DI_SIG #1619 contains executable programs and
source code for programs that allow you to program MC68HC11 microcontrollers
via an RS-232C connection to your PC. The programs replace obsolete,
error-laden programs published in an applications note....[Design Idea by
Mika Maaspuro, Kirstinmaki, Espoo, Finland] |
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µC squares input signal - 12/19/96 EDN-Design Ideas....Converting a
random-width pulse to a signal with the same frequency but with a 50% duty cycle isn't
easy, especially when the specified frequency range is large…. [Design Idea by
Yongping Xia, Philips Lighting Electronics Co, Torrance, CA] |
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µC tool packages focus on specific applications. - 04/01/99 Issue of EDN
Siemens has extended its microcontroller-development tool support with the “Big Box”
programme—bundled offerings that provide tool chains from a number of third-party
suppliers. The tool set targets a number of “typical” application areas. The company
integrates the tools through a standard interface and includes training and support
from the tools’ manufacturers. Part of Siemens’ “Space” programme, the Big Box covers
8-, 16-, and 32-bit microcontrollers....Page includes several designs. Scroll to
find this one....[Design Idea by Graham Prophet] |
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