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X1226 - Real Time Clock/Calendar

General Description

The X1226 device is a Real Time Clock with clock/calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, and battery backup switch.

The oscillator uses an external, low-cost 32.768kHz crystal.

All compensation and trim components are integrated on the chip.

Key Features

  • Real Time Clock/Calendar.
  • Tracks Time in Hours, Minutes, and Seconds.
  • Day of the Week, Day, Month, and Year.
  • 2 Polled Alarms (Non-volatile).
  • Settable on the Second, Minute, Hour, Day of the Week, Day, or Month.
  • Repeat Mode (periodic interrupts).
  • Oscillator Compensation On Chip.
  • Internal Feedback Resistor and Compensation Capacitors.
  • 64 Position Digitally Controlled Trim Capacitor.
  • 6 Digital Frequency Adjustment S.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
X1226 Real Time Clock/Calendar with EEPROM Xicor
X1227 Real Time Clock/Calendar/CPU Supervisor with EEPROM Xicor
X1228 Real Time Clock/Calendar/CPU Supervisor with EEPROM Xicor
X1205 Real Time Clock/Calendar Xicor
X1240 Real Time Clock/Calendar with EEPROM Xicor

Other Datasheets by Intersil (now Renesas)

Part Number Description
X1227 RTC Real TimeClock/Calendar/ CPU Supervisor
X1228 Real Time Clock/Calendar/CPU Supervisor
X1286 Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286
X1288 RTC Real Time Clock/Calendar/CPU Supervisor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® X1226 4K (512 x 8), 2-Wire™ RTC Data Sheet May 8, 2006 FN8098.3 Real Time Clock/Calendar with EEPROM FEATURES • Real Time Clock/Calendar —Tracks Time in Hours, Minutes, and Seconds —Day of the Week, Day, Month, and Year • 2 Polled Alarms (Non-volatile) —Settable on the Second, Minute, Hour, Day of the Week, Day, or Month —Repeat Mode (periodic interrupts) • Oscillator Compensation On Chip —Internal Feedback Resistor and Compensation Capacitors —64 Position Digitally Controlled Trim Capacitor —6 Digital Frequency Adjustment Settings to ±30ppm • Battery Switch or Super Cap Input • 512 x 8 Bits of EEPROM —64-Byte Page Write Mode —8 Modes of Block Lock™ Protection —Single Byte Write Capability • High Reliability —Data Retention: 100 Years www.DataSheet4U.