Maxim DS1340Z-33+T&R

时钟/日历闰年，涓流充电器

Overview

The DS1340Z-33 is a real-time clock (RTC)/calendar that is pin compatible and functionally equivalent to the ST M41T00, including the software clock calibration. The device additionally provides trickle-charge capability on the VBACKUP pin, a lower timekeeping voltage, and an oscillator STOP flag. Block access of the register map is identical to the ST device. Two additional registers, which are accessed individually, are required for the trickle charger and flag. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. A built-in power-sense circuit detects power failures and automatically switches to the backup supply. The device is programmed serially through an I2C bidirectional bus.

Features

Tape & Reel (TR) Package
Clock/Calendar Type
HH:MM:SS (24 hr) Time Format
2.97V ~ 5.5V Voltage - Supply
1.3V ~ 5.5V Voltage - Supply, Battery
150µA @ 5.5V Current - Timekeeping (Max)
Surface Mount Mounting Type