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ds323x-rs
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Diego Barrios Romero 2021-02-22 11:01:56 +01:00
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@ -41,16 +41,18 @@ This driver allows you to:
This driver is compatible with the DS3231 and DS3232 I2C devices and the This driver is compatible with the DS3231 and DS3232 I2C devices and the
DS3234 SPI device. DS3234 SPI device.
### DS3231 These devices are low-cost temperature-compensated crystal oscillator (TCXO)
The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with with a very accurate, temperature-compensated, integrated real-time clock
an integrated temperature-compensated crystal oscillator (TCXO) and crystal. (RTC) including 236/256 bytes of battery-backed SRAM, depending on the model.
The device incorporates a battery input, and maintains accurate timekeeping ### DS3231 and DS3232 details
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 The devices incorporate a battery input, and maintain accurate timekeeping
when main power to the devices is interrupted. The integration of the
crystal resonator enhances the long-term accuracy of the devices as well as
reduces the piece-part count in a manufacturing line. reduces the piece-part count in a manufacturing line.
The DS3231 is available in commercial and industrial temperature ranges, The devices are available in commercial and industrial temperature ranges,
and is offered in a 16-pin, 300-mil SO package. and are offered in a 16-pin, 300-mil SO package.
The RTC maintains seconds, minutes, hours, day, date, month, and year The RTC maintains seconds, minutes, hours, day, date, month, and year
information. The date at the end of the month is automatically adjusted for information. The date at the end of the month is automatically adjusted for
@ -66,36 +68,7 @@ reset output, and to automatically switch to the backup supply when
necessary. Additionally, the RST pin is monitored as a pushbutton necessary. Additionally, the RST pin is monitored as a pushbutton
input for generating a μP reset. input for generating a μP reset.
### DS3232 ### DS3234 details
The DS3232 is a low-cost temperature-compensated crystal oscillator (TCXO)
with a very accurate, temperature-compensated, integrated real-time clock
(RTC) and 236 bytes of battery-backed SRAM.
Additionally, the DS3232 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 DS3232 is available in commercial and industrial temperature ranges,
and is offered in an industry-standard 20-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-of-day 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.
### DS3234
The DS3234 is a low-cost, extremely accurate SPI bus real-time clock (RTC)
with an integrated temperature-compensated crystal oscillator (TCXO) and
crystal.
The DS3234 incorporates a precision, temperature-compensated voltage The DS3234 incorporates a precision, temperature-compensated voltage
reference and comparator circuit to monitor VCC. When VCC drops below the reference and comparator circuit to monitor VCC. When VCC drops below the