Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 8-UFDFN Exposed Pad
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BU9873NUX-TTR

DigiKey Part Number
BU9873NUX-TTRTR-ND - Tape & Reel (TR)
BU9873NUX-TTRCT-ND - Cut Tape (CT)
BU9873NUX-TTRDKR-ND - Digi-Reel®
Manufacturer
Rohm Semiconductor
Manufacturer Product Number
BU9873NUX-TTR
Description
IC RTC CLK/CALENDAR I2C 8VSON
Customer Reference
Detailed Description
Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 8-UFDFN Exposed Pad
Datasheet
 Datasheet
Product Attributes
Type
Description
Select All
Category
Manufacturer
Rohm Semiconductor
Series
-
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Last Time Buy
DigiKey Programmable
Not Verified
Type
Clock/Calendar
Features
Alarm, Leap Year
Memory Size
-
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
I2C, 2-Wire Serial
Voltage - Supply
1.8V ~ 5.5V
Voltage - Supply, Battery
-
Current - Timekeeping (Max)
1µA ~ 1.35µA @ 3V ~ 5.5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-UFDFN Exposed Pad
Supplier Device Package
VSON008X2030
Base Product Number
BU9873
Product Questions and Answers

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In-Stock: 8,365
Check for Additional Incoming Stock
Once available stock of this product has been depleted, manufacturer standard package and lead time will apply.
Last Time Buy Date: 2026/03/31
Quantity
All prices are in JPY
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1¥172.00000¥172
10¥123.60000¥1,236
25¥111.56000¥2,789
100¥98.39000¥9,839
250¥92.09600¥23,024
500¥88.30800¥44,154
1,000¥85.18700¥85,187
* All Digi-Reel orders will add a ¥800 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
4,000¥80.50400¥322,016
8,000¥78.76425¥630,114
12,000¥77.89350¥934,722
20,000¥76.92830¥1,538,566
Manufacturers Standard Package
Unit Price without JCT:¥172.00000
Unit Price with JCT:¥189.20000
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