High Accuracy Pi RTC (DS3231)
SKU 103030278
The High Accuracy Pi RTC is based on the clock chip DS3231, the DS3231 is a low‐cost,
extremely accurate I2C realtime clock (RTC). It can provide a real‐time clock(RTC) for raspberry
pi via the I2C interface. With the clock source from the TCXO(temperaturecompensated crystal
oscillator), the RTC provides 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.
The clock provides two programmable time‐of‐day alarms and a programmable square‐wave
output. The INT/SQW pin either generates an interrupt due to alarm condition or outputs a
square‐wave signal and the selection is controlled by the bit INTCN.
If you want to keep this module timing when the Raspberry Pi is powered off, you need to put a
3‐Volt CR1225 lithium cell in the battery‐holder.
Feature
Support Raspberry Pi 2/ 3 B/B+ Zero
Suport seconds,minuutes,hours,day of week,month, year
Support 24‐hour or 12‐hour format with AM/PM indicator
Low‐Power Consumption
Two Time‐of‐Day Alarms
Fast (400kHz) I2C Interface
Typical Applications
Any applications need Real Time on Raspberry.
Pin Out
Technical Details
Dimensions
25mm x 25mm x 15mm
Weight
G.W 13.90g
Battery
Exclude
Part List
High Accuracy Pi RTC (DS3231)
1
2pin Header
1
ECCN/HTS
ECCN
EAR99
HSCODE
8473309000
https://www.seeedstudio.com/High%20Accuracy%20Pi%20RTC%20(DS3231)‐p‐3214.html/12‐4‐18
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