STM M24LR04E-R 4-Kbit dual interface EEPROM with RFID

STMicroelectronics has introduced the M24LR04E-R 4-Kbit Dual Interface EEPROM with RFID. “The M24LR04E-R device is a dual-interface, electrically erasable programmable memory (EEPROM). It features an I2C interface and can be operated from a VCC power supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR04E-R is organized as 512 […]

Resistors and power ratings

Kenneth discusses resistors and power ratings: Resistors are possibly the most basic component of electronics; given an input voltage, they allow a current to flow, and given an input current to flow, they produce a voltage.  The relationship between the voltage and current is linear (a straight line), (mostly) frequency independent (unlike capacitors or inductors), […]

NXP RF component manual

NXP has released the 16th edition of their RF component manual. It covers the full line of NXP RF offerings including their core technologies QUBiC4 and LDMOS, GPS LNAs, medium power amplifiers, IF gain blocks, satellite LNB ICs and CATV modules, amplifiers (low noise, variable gain, medium power and high power Doherty amplifiers), mixers, IQ […]

Octopart provides historical component pricing

Greg Shikhman from Octopart writes, “Hey DP, we just launched a new feature on Octopart that we think is really cool: historical prices on chips. We’re trying to bring transparency to the chip market and we’ve already discovered some cool stuff in our data. Check it out! The way it works is you search for […]

Spansion serial Flash sample offer

Spansion together with Avnet has announced a marketing promotion for Spansion FL Serial Flash memory. “Spansion FL Serial Flash memory offers a reduced pin count for lower system cost while providing optimal read/write performance for a variety of automotive, networking, consumer electronics and industrial applications. With read speeds up to 133 MHz clock speed in […]

AS3935 lightning sensor chip

Manuel Garbe and Drone both wrote in to draw our attention to this new “Lightning Detector” chip from Austriamicrosystems. According to the manufacturer’s press release, “[t]he AS3935 is a programmable Lightning Sensor IC that detects the presence and approach of potentially hazardous lightning activity in the vicinity. It detects intra-cloud activity as well as cloud […]

Homebrew electronic tubes

Ante Vukorepa draws our attention to this video of Claude Paillard, a French radio amateur (F2FO), making his own tubes (also known as thermionic valves) from scratch. “The video depicts the whole process, from winding the filament through making the glassware, assembly and vacuuming, to testing. Pretty awesome!” For more information on Claude’s activities as […]

SuperScope: circuit simulation through Arduino-Processing interface

Here’s a novel application. Supecapacitor has developed a circuit simulation project using Arduino-Processing. As he describes it: “SuperScope is a circuit simulator app for representing and calculating analog circuits. What’s so cool about SuperScope is the ability to actually import circuit components (via Arduino Serial) into the program where you can physically manipulate them. Arduino […]

Our big box of traveling parts is in the wild

We are constantly developing prototypes, so we end up with a large pile of unused components. When we moved to a new location we realized some components sat untouched since the previous move. A while ago we read about the The Great Internet Migratory Box Of Electronics Junk and decided this was a perfect way […]

Jameco power connector challenge

Jameco Electronics presents a challenge to correctly identify power connectors as male or female. While most connector genders are determined by common characteristics and become set in terminology, this is apparently not the case for barrel type power connectors. Jameco is conducting a survey to determine which of the above connectors should be characterized as […]