S35390A, S35-390 Datasheet (Seiko Instruments)

S35390A, S35-390, 2-Wire Real Time Clock

of Pins Table 1 Pin No.

Symbol Description Interrupt 1 signal output pin Depending on the mode set by INT1 register_1 and the status register, it outputs low or a clock when the time is reached.

It is disabled by rewriting the status register.

Crystal oscillator connect pin (32,768 Hz) (Cd built in,

S35390A Features

* a wide operating voltage range (1.3 V to 5.5 V) and can be driven on a variety of supply voltages, from a main supply to a backup supply. The time keeping current consumption of 0.25 µA and minimum time keeping operation voltage of 1.1 V enable greatly increased battery duration. In a system that op