R2051 Datasheet (RICOH electronics) - 2 wire interface Real-Time Clock ICs

R2051, 2 wire interface Real-Time Clock ICs

Designation of the package.

K: FFP12 S: SSOP16 T: TSSOP10G Serial number of Voltage detector setting etc.

Designation of the taping type.

Only E2 is available.

Code a bb cc Part Number R2051K01-E2 R2051K02-E2 R2051S01-E2 R2051S02-E2 R2051S03-E2 R2051T01-E2 Package FFP12 FFP12 SSOP16 SSOP16 SSOP16

R2051 SERIES 2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function NO.EA-104-070626 www.datasheet4u.com OUTLINE The R2051 is a CMOS real-time clock IC connected to the CPU by two signal lines, SCL and SDA, and configured to perform serial transmission of time and calendar data to the CPU.

Further, battery backup switchover circuit and a voltage detector are incorporated.

The periodic interrupt circuit is configured to generate interrupt signals with six selectable inter

R2051 Features

* Minimum Timekeeping supply voltage Typ. 0.75V (Max. 1.00V); VDD pin Low power consumption 0.4µA TYP (1.0µA MAX.) at VDD=3V Built-i