Real Time Clock Module

Product Details:

DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, disconnects the main power supply and maintains accurate timekeeping. Integrated oscillator improves long-term accuracy of the device and reduces the number of components of the production line

RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year. The clock operates in either the 24 hours or band AM PM indication of the 12-hour format. Provides two configurable alarm clock and a calendar can be set to a square wave output. 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, provide a reset output, and if necessary, automatically switch to the backup power supply. In addition, RST pin is monitored as generating P reset manually.

Save time and high precision addition, DS3231 also has some other features that extend the system host of additional features and a range of options. The device integrates a very precise digital temperature sensor, through the I2C interface to access it (as the same time). This temperature sensor accuracy is ± 3 ° C. On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply. If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. When the main power re-power or voltage value returns to within the allowable range, the on-chip reset function can be used to restart the system microprocessor.

DETAILS

Size 38mm (length) 22mm (W) 14mm (height),Weight 8g,Operating voltage 3.3 - 5 .5 V, Clock chip high-precision clock chip DS3231,Clock Accuracy 0-40 range, the accuracy 2ppm, the error was about 1 minute, Calendar alarm clock with two, Programmable square-wave output, Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation, Chip temperature sensor comes with an accuracy of ± 3,memory chips AT24C32 (storage capacity 32K),IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V),can be cascaded with other IIC device, 24C32 addresses can be shorted A0A1A2 modify default address is 0x57

With rechargeable battery LIR2032, to ensure the system after power failure, the clock moves any natural normal.

Additional Information:

• Item Code: OMP-M052

Product Details:

Along with the DS1307 real time clock, the module also has an Atmel 24C32 EEPROM chip which is handy for storing data without worrying about power loss.

DETAILS

DS1307 I2C real time clock chip (RTC)

24C32 32K I2C EEPROM memory

Using CR2032 lithium battery

Other I2C devices can be cascaded

Leads to the DS1307 clock pin provides a clock signal for the microcontroller

Supports LIR2032 rechargeable lithium battery, and with a charging circuit to charge the battery (not included)

Additional Information:

• Item Code: OMP-M006

Product Details:

Description:
Real-time clock with energy calculations before 2100 seconds, minutes, hours, day, week, month, year capacity, as well as the ability to leap year adjustment
serial I / O ports such a way that a minimum number of pins
Wide operating voltage range 3.3V/5.5V
Read / write clock or RAM data transfer mode, there are two single-byte and multi-byte transfer mode transmission character set
8-pin DIP package or an optional 8-pin SOIC surface mount package under
Simple 3-wire interface
 
Specification:
Operating Voltage: 3.3V / 5V
PCB Size: 43mm x 23mm (L*W)
 
Package Includes:
1 x DS1302 Module

Additional Information:

• Item Code: OMP-M024

Product Details:

RTC clock module temperature range: -40 ° C to +85 ° C,the precision of digital temperature sensor is ±3°C; the timing accuracy kept at ± 5ppm (± 0.432 sec / day)

DS3231 High Precision RTC Clock Memory Module are CONVENIENT TO USE because itself can be adapted to 3.3 V and 5 V system, no level conversion, it is super convenient

Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing, provide valid until the year 2100 leap year

Reset output and anti-shake inpu; High speed (400 KHZ)I2C serial bus