스몰 RTC 모듈 -RV-8803
(smôl RTC)
개요
- 본 제품은 스몰 RTC 모듈 -RV-8803입니다.
- 스몰 시리즈 포맷을 가진 보드로 RV-8803 RTC 를 기반으로 디자인된 제품입니다.
- I2C 인터페이스를 가지고 있습니다.
특징
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RV-8803-C7 Features:
- Factory Calibrated Temperature Compensation
- High Time Accuracy
- ±1.5 ppm 0 to +50°C
- ±3.0 ppm -40 to +85°C
- ±7.0 ppm +85 to +105°C
- 1.5V to 5.5V Operating Voltage Range
- 240nA @ 3.3v Low-Power Consumption
- Periodic Countdown Timer Interrupt function
- Periodic Time Update Interrupt function (seconds, minutes)
- Alarm Interrupts for weekday or date, hour and minute settings
- External Event Input with Interrupt and Time Stamp function
- Programmable Clock Output pin for peripheral devices.
- Operating temperature range: -40 to +105°C
smôl Specifics:
- Interface: I2C
- I2C Address: 0x32 (unshifted)
- Rechargeable back-up battery
- EVI breakout pad
- Configurable INT jumpers
- INT can be connected to smôl GPIO if required (disabled by default)
Properties:
- Length: 1.60" (40.6mm)
- Width: 0.42" (10.7mm)
- Height: 0.13" (3.2mm) max.
- Weight: 1.1g (0.04oz)
- PCB thickness: 0.8mm
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Our RedBoards are great. But don't they sometimes seem a little BIG?!
Enter smôl, a new range of boards which are both small in size and small on current draw. It's a smôl world!
The smôl RTC is a smôl-format board for the RV-8803 Real Time Clock. The RV-8803 boasts some impressive features including a temperature compensated crystal providing extremely precise time-keeping, low power consumption, and time stamp event input along with a user-programmable timing offset value. The RV-8803 also has an improved I2C interface compared to the RV-1805 RTC that removes the need to sequence commands/writes to the device. Best of all, the temperature compensation comes factory calibrated. The RV-8803's INTerrupt pin can be connected to the smôl bus via configurable jumpers. The smôl RTC provides access to the RV-8803's EVI pin too via a breakout pad.
Adding a real-time clock to your project is the perfect way to get more accurate data; timing or otherwise. The RTC module has counters for hundredths of seconds, seconds, minutes, hours, date, month, year and weekday with a number of alarm and interrupt settings available as well. Plus the large operating temperature range of the RV-8803 and temperature compensated crystal makes it a good addition for field applications or harsh environments.
문서
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smôl RTC Documentation:
- Schematic
- Eagle Files
- Datasheet (RV-8803-C7)
- Application Manual (RV-8803-C7)
- GitHub Hardware Repo
- Arduino Library
smôl Documentation: