Microprocessor Circuits   Page 1a
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Last Updated on: Friday, March 12, 2010 12:08 PM

µC tool packages focus on specific applications - 04/10/99 EDN-Design Ideas / (added 2/06)  [Note:  File contains multiple circuits.  Scroll to find this one.]  Siemens has extended its microcontroller-development tool support with  “Big Box” programme—bundled offerings that provide tool chains from a number of third-party suppliers.  tool set ....

µC uses simple tool for angle measurements - 04/10/97 EDN-Design Ideas / (added 2/06)  

µC-based one-shot has wide range  - 06/19/97 EDN-Design Ideas / (added 2/06) 

µP Displays 10 Bit Data on Three LEDs - 11/07/96 EDN-Design Ideas / (added 6/06)  circuit in Figure 1 uses a PIC16C55 µP to read 10-bit binary data and directly display  data in decimal format on three common-cathode LED displays. If value of  data exceeds 999,  displays show three hyphens (---) to represent overflow.  PIC16C55 has high drive....

µP Interface for a Free-Running A/D Allows Asynchronous Reads - National Semiconductor Application Note   (app note added 2/06)

µP Socket Automatic ally Senses Upgrade - 03/03/03/94 EDN Design Ideas / (added 11/05)

0 - 5V PIC Voltmeter - Higher voltage can be measured with resistor voltage divider ….(circuit design added 11/08)

1.8 Volt Technology: Benefits - Microchip Application Note Published 26-Aug-97   (app note added 2/06)

10 Tricks for Interfacing to the PIC16C508 - (schematic / circuit added 10/02)

100BASE-X Repeater Management Module 1106 - National Semiconductor Application Note   (app note added 2/06)

12 Hour Clock - PIC16F84 based, four LED display segments, 12 hour clock (circuit added 08/07/06)

12F675 as a Flip Flop - Code to make a 12F675 operate as a D-type or JK-type flip flop.  Since I implemented a D type flip flop using  PIC Logic Elements I thought I might go  or way and implement an entire D type flip flop in a single PIC.  This uses  edge triggered and port change status interrupts and was an opportunity to have a play with interrupts on  PIC....   (added 10/05)

15-Kilogram Scale using the TC520 TC500/A, TC520 - Microchip Application Note Published 12-Nov-02   (app note added 2/06)

16 Bit PC Serial Port Receiver CMOS - (electronic circuit added 10/05)

2 chips simplify layout for High-end embedded control - 04/10/99 EDN-Design Ideas / (added 2/06)  [Note:  File contains multiple circuits.  Scroll to find this one.]  If you are considering using one of  32or 64-bit RISC µPs from Integrated Device Technology (IDT),  company’s new RC32134 and RC64145 system-controller ICs....

2 Wire LCD Interface using PIC16CF84 - (electronic design added 9/02)

2.5 GHz Frequency counter - This project describes a very powerful frequency counter. Very simple construction which everyone can build. 6 LED display will present the frequency with 1kHz resolution and RS232 communication to computer is available as option. The software has also been implemented with some smart functions, for calculating frequencies in receivers where IF is 455kHz or 10.7MHz. I present schematic, PCB, components and window software. ….(design added 11/08)

2-Digit Counter - This article describes a 2-Digit Counter using a Microchip PIC12F629. It shows what can be done with an 8-pin chip having just 5 output lines and one input line. The chip drives two7-segment displays and this would normally require 7 lines to drive the segments plus another one or two lines to select the displays.....(circuit / schematic design added 2/07)