Increment and decrement. They sound like simple functions. But even the simplest functions can get quite complex in a microprocessor design. Ken Shirriff has written up a great blog post about his ...

Many microprocessor-based products require a manual-reset capability that allows the user, test technician, or external circuitry to reboot the system without a full power-down/power-up cycle. To ...

Forty years ago today, electronics and semiconductor trade newspaper Electronic News ran an advertisement for a new kind of chip. The Intel 4004, a $60 chip in a 16-pin dual in-line package, was an ...

Ladder logic uses switch or relay contacts to implement Boolean expressions. In years past, ladder logic was made possible with discrete relays and was sometimes termed “relay logic.” Today most ...

Fig 1. A typical CMOS input circuit comprises a “P” and “N” transistor. One is fully “on” for logic high, and the other is “on” for a logic low. Fig 2. When a CMOS input pin is at logic high or low ...