特价供应进口原装DS3231SN#TR 假一陪十

The DS3231 is a low-cost, extremely accurate I2C realtime

clock (RTC) with an integrated temperaturecompensated

crystal oscillator (TCXO) and crystal. The

device incorporates a battery input, and maintains accurate

timekeeping when main power to the device is interrupted.

The integration of the crystal resonator enhances

the long-term accuracy of the device as well as reduces

the piece-part count in a manufacturing line. The DS3231

is available in commercial and industrial temperature

ranges, and is offered in a 16-pin, 300-mil SO package.

The RTC maintains seconds, minutes, hours, day, date,

month, and year information. The date at the end of the

month is automatically adjusted for months with fewer

than 31 days, including corrections for leap year. The

clock operates in either the 24-hour or 12-hour format

with an AM/PM indicator. Two programmable time-ofday

alarms and a programmable square-wave output

are provided. Address and data are transferred serially

through an I2C bidirectional bus.

A precision temperature-compensated voltage reference

and comparator circuit monitors the status of VCC

to detect power failures, to provide a reset output, and

to automatically switch to the backup supply when necessary.

Additionally, the RST pin is monitored as a

pushbutton input for generating a μP reset.