Embedded memory enhances Programmable logic for complex designs - 11/07/96 EDN-Design Feature.....(design idea added 6/06)  The growing densities of PLDs are making the chips suitable for increasingly complex designs. Those designs require high-performance scratchpad RAM for temporary storage of data that passes through the logic circuitry that the chips implement. Vendors are responding with new devices.—Rick Nelson, Contributing Editor

Extend monolithic programmable resistor adjustment range with active negative resistance - 09/04/08 EDN-Design Ideas: An op amp in a negative-resistance topology subtracts the minimum programmable resistance from the total programmed resistance of a solid-state resistor.....(design idea added 008/09)

Lattice Semi GDS Chip Programmer software - Generic Digital Switches are in-circuit programmable devices made by Lattice Semiconductor that allow pin to pin routing, buffering, and inversion. Perfect for making last minute circuit changes…. (added 11/05)

LED Driver provides software ControlLED intensity - 09/30/04 EDN-Design Ideas: Recent advances in operating efficiency have expanded the use of LEDs from one of mere indicators to becoming driving forces in electronic lighting. Increased reliability and ruggedness (versus other lighting technologies)gives the LED a bright future indeed. Vendors in recent years have introduced many ICs for driving LEDs, but the problem of driving serial chains of LEDs has received less at.....(design idea added 1/05)

Make a Printer Port EEPROM Programmer & Dongle - 05/13/04 EDN-Design Ideas: You can easily use a PC's printer port for serial-EEPROM programming. You can use a device-programmer circuit used to program the MicroWire serial EE-PROM 93CXX (Figure 1). The circuit is so simple that any further simplification seems impossible. This programmer circuit contains no microcontroller, as most device programmers do.....(design idea added 1/05)

PC Serial & Parallel Port Software & Interfaces - circuit (added 11/05)

PIC16F84 programmer - Electronic circuit (added 11/05)

PLD code creates PWM generators - 08/08/02 EDN-Design Ideas: The PLD (programmable-logic-device)code in Listing 1 creates arbitrary-resolution, pulse-width-modulated (PWM)generators. PWM generators are useful as low-bandwidth D/A converters in hardware of microprocessor-based systems. When you pass it through a simple RC lowpass filter, a PWM waveform.....(design idea added 11/05)

Power Dissipation the Easy Way Using the Power Design Tool Apex-AN37 - Apex App Note (added 08/08/08)

Program Converts hex to floating point - 07/20/95 EDN-Design Ideas: (design idea added 11/05)