What is X1226?

This is Real Time Clock/Calendar with EEPROM.

EEPROM stands for Electrically Erasable Programmable Read-Only Memory. It is a type of non-volatile memory that can be electrically erased and reprogrammed. EEPROMs are used to store small amounts of data that need to be saved even when the power is turned off, such as the settings of an electronic device or a small amount of code that needs to be retained after a power cycle.

[PDF] Complete Technical Details can be found in the X1226 datasheet provided at this page.

Summary in PDF File

New Features Repetitive Alarms Temperature Compensation 4K 512 x 8 X1226 Real Time Clock Calendar with EEPROM 2 Wire RTC 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 Endurance 100 000 cycles per byte 2 Wire Interface interoperable with I2C 400kHz data transfer rate Frequency Output SW Selectable Off 1Hz 4096Hz or 32 768kHz Low Power CMOS 1 25 A Operating Current Typical Small Package Options 8 Lead SOIC and 8 Lead TSSOP BLOCK DIAGRAM OSC Compensation X1 Frequency Divider APPLICATIONS Utility Meters HVAC Equipment Audio Vide

Datasheet Download (PDF)

[ Detailed Data ]

EEPROMs are similar to EPROMs (Erasable Programmable Read-Only Memory) in that they are both non-volatile memory that can be programmed, but EEPROMs can be reprogrammed electrically, while EPROMs must be erased using ultraviolet light before they can be reprogrammed.

Manufacturers : Xicor

XICOR - X1226 Datasheet PDF


Real Time Clock/Calendar with EEPROM

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