The I 2 C, bus controlled push-pull general-purpose input/output feature PCA 9538/9539 I/O expanders, integrating push-pull outputs, interrupt, and hardware reset. The 4-, 8-, and 16-bit devices have ...

On the lower end of the performance spectrum, many widely available and inexpensive microcontrollers pay for their small pc-board footprints by omitting functions. For example, most low-end processors ...

Counter/timer hardware is a crucial component of most embedded systems. In some cases a timer is needed to measure elapsed time; in others we want to count or time some external events. Here's a ...

A pulse-width-modulated (PWM) signal and the RC-charging characteristics of a weighted-capacitor network can be used along with a CMOS Schmitt inverter to generate a pulse whose width is linearly ...