DS1302 timekeeping chip

DESCRIPTION The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar. Also it includes 31 bytes of battery-backed general-purpose static RAM. It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with […]

DS18B20 Digital Thermometer

DESCRIPTION The DS18B20 Digital Thermometer provides 9 to 12–bit centigrade temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of […]

The drivers MAX7219 and MAX7221

The MAX7219/MAX7221 are compact common – cathode display drivers that interface microcontrollers to 7 – segment numeric LED displays of up to 8 digits (or 64 individuals LEDs). Included on-chip: A BCD code for data coding which can be enabled or not. The MAX7219/MAX7221 allows the user to select code- B decoding or no-decode for […]