255 255 Datasheet

PRODUCT ID 255

Part	Datasheet
255	255 (pdf)

PDF Datasheet Preview
ChronoDot - Ultra-precise Real Time Clock v2.1 PRODUCT ID 255 • Description THIS IS THE LATEST VERSION The ChronoDot RTC is an extremely accurate real time clock module, based on the DS3231 temperature compensated RTC TCXO . It includes a CR1632 battery not shown, but included in the product which should last at least 8 years if the I2C interface is only used while the device has 5V power available. No external crystal or tuning capacitors are required. The top side of the Chronodot now features a battery holder for 16mm 3V lithium coin cells. It pairs particularly well with CR1632 batteries. The DS3231 has an internal crystal and a switched bank of tuning capacitors. The temperature of the crystal is continously monitored, and the capacitors are adjusted to maintain a stable frequency. Other RTC solutions may drift minutes per month, especially in extreme temperature ranges...the ChronoDot will drift less than a minute per year. This makes the ChronoDot very well suited for time critical applications that cannot be regularly synchronized to an external clock. The ChronoDot will plug into a standard solderless breadboard and also has mounting holes for chassis installation. The I2C interface is very straightforward and virtually identical to the register addresses of the popular DS1337 and DS1307 RTCs, which means that existing code for the Arduino, Basic Stamp, Cubloc, and other controllers should work with no modification.This new version has a battery holder, no soldering required! • Technical Details Dimensions without battery o Length 30.4mm/1.2in diameter o Height 14.1mm/0.55in o Weight 4 g o This board/chip uses I2C 7-bit address 0x68 Engineered in NYC Adafruit

PDF Datasheet Preview

ChronoDot - Ultra-precise Real Time Clock v2.1

PRODUCT ID 255
• Description

THIS IS THE LATEST VERSION The ChronoDot RTC is an extremely accurate real time clock module, based on the DS3231 temperature compensated RTC TCXO . It includes a CR1632 battery not shown, but included in the product which should last at least 8 years if the I2C interface is only used while the device has 5V power available. No external crystal or tuning capacitors are required. The top side of the Chronodot now features a battery holder for 16mm 3V lithium coin cells. It pairs particularly well with CR1632 batteries.

The DS3231 has an internal crystal and a switched bank of tuning capacitors. The temperature of the crystal is continously monitored, and the capacitors are adjusted to maintain a stable frequency. Other RTC solutions may drift minutes per month, especially in extreme temperature ranges...the ChronoDot will drift less than a minute per year. This makes the ChronoDot very well suited for time critical applications that cannot be regularly synchronized to an external clock. The ChronoDot will plug into a standard solderless breadboard and also has mounting holes for chassis installation. The I2C interface is very straightforward and virtually identical to the register addresses of the popular DS1337 and DS1307 RTCs, which means that existing code for the Arduino, Basic Stamp, Cubloc, and other controllers should work with no modification.This new version has a battery holder, no soldering required!
• Technical Details

Dimensions without battery o Length 30.4mm/1.2in diameter o Height 14.1mm/0.55in o Weight 4 g o This board/chip uses I2C 7-bit address 0x68

Engineered in NYC Adafruit

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 255 Datasheet file may be downloaded here without warranties.

255

255 Datasheet

Datasheet ID: 255 509443