Real-Time Clocks

Microchip Real-Time Clocks are offered from basic low-cost devices to various mid-range devices. These highly integrated devices have a usable amount of non-volatile memory and a combination of features that are very effective when operating within a single battery-backed clock device. With I2C and SPI RTCCs, various applications can be supported with fewer features and lower performance.

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Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model RTC Bus Interface
Date Format
Time Format
RTC Memory Size
Package/Case
Battery Backup Switching
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Series
Mounting Style
Packaging
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM
Datasheet
201In Stock
500Expected 10/26/2026
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TSSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID
Datasheet
954In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TSSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48
Datasheet
1’034In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM ID
Datasheet
889In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 1 kB MSOP-10 Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-48
Datasheet
547In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-10 Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock SPI GP RTCC 1Kb EE 64B SRAM EUI-64
Datasheet
609In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-10 Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock 1Kb EE 64B SRAM WD TED ID
Datasheet
210In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 1 kB SOIC-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube

Microchip Technology Real Time Clock 1Kb EE 64B SRAM WD TED EUI-48
Datasheet
5In Stock
192Expected 10/20/2026
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 1 kB TSSOP-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube

Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED ID
Datasheet
346In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SOIC-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube

Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED ID
Datasheet
192In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB TSSOP-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48
Datasheet
42In Stock
228Expected 10/5/2026
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SOIC-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED EUI-48
Datasheet
121In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB TSSOP-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock 2Kb EE 64B SRAM WD TED EUI-64
Datasheet
5In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 2 kB SOIC-14 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48
Datasheet
1’108In Stock
Min.: 1
Mult.: 1

I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TSSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID
Datasheet
3’178In Stock
Min.: 1
Mult.: 1
: 3’300

Reel, Cut Tape
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48
Datasheet
150In Stock
Min.: 1
Mult.: 1

SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B MSOP-10 Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Tube
Microchip Technology Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM EUI-48
Datasheet
920In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

Serial, I2C, SPI YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B Backup Switching 1.8 V 3.6 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48
Datasheet
Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 3’300

I2C YY-MM-DD-dd HH:MM:SS (24 hr) 64 B TDFN-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM
Datasheet
9’743Expected 9/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3’300

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TDFN-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Reel, Cut Tape, MouseReel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM ID
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1
: 3’300

Reel, Cut Tape
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM ID
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2’500
Mult.: 2’500
: 2’500

Reel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-48
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 2’500
Mult.: 2’500
: 2’500

Reel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-48
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 3’300
Mult.: 3’300
: 3’300

Reel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-48
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2’500
Mult.: 2’500
: 2’500

Reel
Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM EUI-64
Datasheet
Lead-Time 10 Weeks
Min.: 1
Mult.: 1

Serial 2-Wire, I2C YY-MM-DD-dd HH:MM:SS:hh (12 hr, 24 hr) 64 B TSSOP-8 Backup Switching 1.8 V 5.5 V - 40 C + 85 C SMD/SMT Tube