DESCRIPTION

· The R2062 is a CMOS real-time clock IC with a 3-wire interface (CE, SCLK, SIO) for serial data transmission to the CPU.

· It features a battery backup switchover circuit, voltage detector, and periodic interrupt circuit with six selectable intervals (0.5 seconds to 1 month).

· Includes 2 alarm interrupt circuits, oscillation halt sensing, and supply voltage monitoring with two threshold settings.

· Provides a 32.768kHz clock output for external microcomputers and an oscillation adjustment circuit for high precision timekeeping.

· Available in FFP12 and QFN023023-16 packages for high-density board mounting.

FEATURES

· Minimum timekeeping supply voltage: 0.75V (Typ.), 1.00V (Max.).

· Low power consumption: 0.4μA (Typ.), 1.0μA (Max.) at VDD=3V.

· Built-in backup switchover circuit for secondary batteries or electric double-layer capacitors.

· Time and calendar counters in BCD format, with automatic leap year identification up to 2099.

· Interrupt circuits with flags and halt functions, 2 alarm interrupt circuits.

· 32kHz clock output pin, supply voltage monitoring, and power-on flag.

· Selectable 12-hour/24-hour modes, built-in oscillation stabilization capacitors, and high-precision oscillation adjustment.

APPLICATIONS

· Real-time clock functionality in embedded systems and microcontrollers.

· Battery-backed timekeeping for consumer electronics, industrial equipment, and IoT devices.

· Precision timing and calendar functions in smart devices and wearables.

· Low-power applications requiring accurate timekeeping with minimal current consumption.