RV-2251-C3
| Type | Package [mm] | Interface | Features | Current @ 3V | Time Accuracy @ 25°C | Temp Comp -40/85°C | VDD min | VDD max | Temp. max | Documents | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RV-2251-C3 | 3.7 x 2.5 x 0.9 | I²C |   | 210 nA | ±20 ppm | 0.9 V | 5.5 V | +85°C | データシート アプリ資料 Free Samples |
Features
- Low power consumption: 210 nA @ 3 V.
- Wide operating voltage range: 0.9 V to 5.5 V.
- Time accuracy: ±20 ppm @ 25°C.
- 3.0 V Regulated Output for ML rechargeable batteries (VREG).
- Level shifter for peripherals (VIO).
- User programmable offset value.
- Automatic Backup switchover function and VBAT monitoring.
- Provides year, month, date, weekday, hours, minutes and seconds.
- I2C-bus interface: 400 kHz.
- Automotive qualification according to AEC-Q200 available.
Block Diagram
Applications
- IoT
- Wearables, Portables
- Health Care
- Metering
- Industrial
- Automotive
Dimension
Ordering Information
RV-2251-C3 a CMOS Real-Time Clock/Calendar Module with an automatic backup switchover circuit and a voltage detector. An Offset register allows compensating the frequency deviation of the 32.768 kHz clock. All addresses and data are transferred over an I2C-bus interface for communication with a host controller. The Address Pointer is incremented automatically after each written or read data byte. The low power consumption can even be lowered by selecting the ECO mode. 3.0 V ML rechargeable batteries can be directly connected to the RV-2251-C3.