
Integrated Circuits (ICs)
BU9873NUX-TTR
NRNDRohm Semiconductor
RTC IC, YY-MM-DD-DW, HH:MM:SS: 12HR / 24HR, I2C, 1.8 V TO 5.5 V, 8 PINS, VSON
Deep-Dive with AI
Search across all available documentation for this part.

Integrated Circuits (ICs)
BU9873NUX-TTR
NRNDRohm Semiconductor
RTC IC, YY-MM-DD-DW, HH:MM:SS: 12HR / 24HR, I2C, 1.8 V TO 5.5 V, 8 PINS, VSON
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | BU9873NUX-TTR |
|---|---|
| Current - Timekeeping (Max) [Max] | 1.35 µA |
| Current - Timekeeping (Max) [Min] | 1 µA |
| Features | Alarm, Leap Year |
| Interface | I2C, 2-Wire Serial |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-UFDFN Exposed Pad |
| Supplier Device Package | VSON008X2030 |
| Time Format | HH:MM:SS (12/24 hr) |
| Type | Clock/Calendar |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.84 | |
| 10 | $ 1.17 | |||
| 25 | $ 0.99 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.69 | |||
| 500 | $ 0.63 | |||
| 1000 | $ 0.58 | |||
| Digi-Reel® | 1 | $ 1.84 | ||
| 10 | $ 1.17 | |||
| 25 | $ 0.99 | |||
| 100 | $ 0.79 | |||
| 250 | $ 0.69 | |||
| 500 | $ 0.63 | |||
| 1000 | $ 0.58 | |||
| Tape & Reel (TR) | 4000 | $ 0.51 | ||
| 8000 | $ 0.48 | |||
| 12000 | $ 0.47 | |||
| 20000 | $ 0.45 | |||
Description
General part information
BU9873 Series
Connected to the CPU via I2C Interface
Time (Hour/Minute/Second, Selectable 12-Hour and 24-Hour Mode Setting)
Calendar (Year/Month/Day/Week)
Documents
Technical documentation and resources