Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 22-SMD, 20 Leads, Flat Leads
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 22-SMD, 20 Leads, Flat Leads
22-LFDFN

RTC-8564NB:B3 ROHS

DigiKey Part Number
SER3649TR-ND - Tape & Reel (TR)
SER3649CT-ND - Cut Tape (CT)
SER3649DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
RTC-8564NB:B3 ROHS
Description
IC RTC CLK/CALENDAR I2C 22SON
Customer Reference
Detailed Description
Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 22-SMD, 20 Leads, Flat Leads
Datasheet
 Datasheet
Product Attributes
Type
Description
Select All
Category
Manufacturer
EPSON
Series
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Last Time Buy
DigiKey Programmable
Not Verified
Type
Clock/Calendar
Features
Alarm, Y2K
Memory Size
-
Time Format
HH:MM:SS
Date Format
YY-MM-DD-dd
Interface
I2C, 2-Wire Serial
Voltage - Supply
1.8V ~ 5.5V
Voltage - Supply, Battery
-
Current - Timekeeping (Max)
0.7µA ~ 0.8µA @ 3V ~ 5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
22-SMD, 20 Leads, Flat Leads
Supplier Device Package
22-SON (6.3x4.8)
Product Questions and Answers

See what engineers are asking, ask your own questions, or help out a member of the DigiKey engineering community

In-Stock: 1
Check for Additional Incoming Stock
Last Time Buy Date: 16/04/2026
All prices are in EUR
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
18,73000 €8,73 €
106,81300 €68,13 €
256,33480 €158,37 €
1005,80840 €580,84 €
* All Digi-Reel orders will add a 5,50 € reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2505,55756 €1 389,39 €
5005,40636 €2 703,18 €
7505,33064 €3 997,98 €
1 2505,24674 €6 558,43 €
Manufacturers Standard Package
Unit Price without VAT:8,73000 €
Unit Price with VAT:10,47600 €