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R2023K - 2-wire Serial Interface Real Time Clock IC

Datasheet Summary

Description

Designation of the package.

K: FFP12 T: TSSOP10G (Preliminary) Designation of the taping type.

Only E2 is available.

Features

  • Minimum Timekeeping supply voltage TYP:0.66 to 5.5v (Worst: 1.00V to 5.5v); VDD pin Low power consumption 0.45µA TYP at VDD=3V (1.00µA MAX. ) Two signal lines (SCL, SDA) required for connection to the CPU. Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days, and weeks) (in BCD format) Interrupt ci.

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Datasheet Details

Part number R2023K
Manufacturer RICOH
File Size 616.51 KB
Description 2-wire Serial Interface Real Time Clock IC
Datasheet download datasheet R2023K Datasheet
Additional preview pages of the R2023K datasheet.

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Full PDF Text Transcription

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R2023K/T 2-wire Serial Interface Real Time Clock IC www.DataSheet4U.com NO.EA-124-070221 OUTLINE The R2023K/T is a CMOS real-time clock IC connected to the CPU by two signal lines, SCL, SDA, and configured to perform serial transmission of time and calendar data to the CPU. The periodic interrupt circuit is configured to generate interrupt signals with six selectable interrupts ranging from 0.5 seconds to 1 month. The 2 alarm interrupt circuits generate interrupt signals at preset times. As the oscillation circuit is driven under constant voltage, fluctuation of the oscillator frequency due to supply voltage is small, and the time keeping current is small (TYP. 0.45µA at 3V).
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