Real Time Clocks

Manufacturer Series Package/Case Packaging Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Grade Qualification Supplier Device Package























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Grade Qualification Supplier Device Package
DS1386P-32-120 Analog Devices Inc./Maxim Integrated

DS1386P-32-120

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,871
RFQ
DS1386P-32-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 4mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1386P-32-120+ Analog Devices Inc./Maxim Integrated

DS1386P-32-120+

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,714
RFQ
DS1386P-32-120+ Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 4mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
M48T37V-10MH6F STMicroelectronics

M48T37V-10MH6F

IC RTC CLK/CALENDAR PAR 44SOH

STMicroelectronics

3,960
RFQ
M48T37V-10MH6F Datasheet

Datasheet

Timekeeper® 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V - 2mA @ 3V ~ 3.6V -40°C ~ 85°C Surface Mount - - 44-SOH
M48T37Y-70MH6F STMicroelectronics

M48T37Y-70MH6F

IC RTC CLK/CALENDAR PAR 44SOH

STMicroelectronics

4,655
RFQ
M48T37Y-70MH6F Datasheet

Datasheet

Timekeeper® 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 3mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 44-SOH
DS1646P-120 Analog Devices Inc./Maxim Integrated

DS1646P-120

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

2,398
RFQ
DS1646P-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM 128KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 4mA @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1746P-70 Analog Devices Inc./Maxim Integrated

DS1746P-70

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

1,026
RFQ
DS1746P-70 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Y2K 128KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 4mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1744WP-120 Analog Devices Inc./Maxim Integrated

DS1744WP-120

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,935
RFQ
DS1744WP-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 2mA @ 3.3V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1244WP-120 Analog Devices Inc./Maxim Integrated

DS1244WP-120

IC RTC PHANTOM CHIP PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,596
RFQ
DS1244WP-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Phantom Time Chip Leap Year, NVSRAM 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 7mA @ 3.3V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1244YP-70 Analog Devices Inc./Maxim Integrated

DS1244YP-70

IC RTC PHANTOM CHIP PAR 34PCM

Analog Devices Inc./Maxim Integrated

3,177
RFQ
DS1244YP-70 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Phantom Time Chip Leap Year, NVSRAM 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 10mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1744-70IND Analog Devices Inc./Maxim Integrated

DS1744-70IND

IC RTC CLK/CALENDAR PAR 28EDIP

Analog Devices Inc./Maxim Integrated

1,099
RFQ
DS1744-70IND Datasheet

Datasheet

- 28-DIP Module (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 4mA @ 5V -40°C ~ 85°C Through Hole - - 28-EDIP
DP8570AVX/NOPB Texas Instruments

DP8570AVX/NOPB

IC RTC TIMER PERIPH PAR 28PLCC

Texas Instruments

2,962
RFQ
DP8570AVX/NOPB Datasheet

Datasheet

- 28-LCC (J-Lead) Tape & Reel (TR) Active Not Verified Timer Clock Peripheral (TCP) Alarm, Leap Year 44B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.2V ~ 5.1V 1µA @ 5V -40°C ~ 85°C Surface Mount - - 28-PLCC (11.51x11.51)
DS1554-70 Analog Devices Inc./Maxim Integrated

DS1554-70

IC RTC CLK/CALENDAR PAR 32EDIP

Analog Devices Inc./Maxim Integrated

2,516
RFQ
DS1554-70 Datasheet

Datasheet

- 32-DIP Module (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 6mA @ 5V 0°C ~ 70°C Through Hole - - 32-EDIP
DS1554W-120 Analog Devices Inc./Maxim Integrated

DS1554W-120

IC RTC CLK/CALENDAR PAR 32EDIP

Analog Devices Inc./Maxim Integrated

2,695
RFQ
DS1554W-120 Datasheet

Datasheet

- 32-DIP Module (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V - 4mA @ 3.3V 0°C ~ 70°C Through Hole - - 32-EDIP
DS1486P-120 Analog Devices Inc./Maxim Integrated

DS1486P-120

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,927
RFQ
DS1486P-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer 128KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3.3V 4mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1486P-120+ Analog Devices Inc./Maxim Integrated

DS1486P-120+

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

3,548
RFQ
DS1486P-120+ Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer 128KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3.3V 4mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS17885S-5/T&R+ Analog Devices Inc./Maxim Integrated

DS17885S-5/T&R+

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

1,962
RFQ
DS17885S-5/T&R+ Datasheet

Datasheet

- 24-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 8KB HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 3mA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount - - 24-SOIC
DS1743-100 IND Analog Devices Inc./Maxim Integrated

DS1743-100 IND

IC RTC CLK/CALENDAR PAR 28EDIP

Analog Devices Inc./Maxim Integrated

2,166
RFQ
DS1743-100 IND Datasheet

Datasheet

- 28-DIP Module (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Y2K 8KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 3mA @ 5V -40°C ~ 85°C Through Hole - - 28-EDIP
DS1743P-70+ Analog Devices Inc./Maxim Integrated

DS1743P-70+

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

3,944
RFQ
DS1743P-70+ Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM, Y2K 8KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 3mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1556WP-120 Analog Devices Inc./Maxim Integrated

DS1556WP-120

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,223
RFQ
DS1556WP-120 Datasheet

Datasheet

- 34-PowerCap™ Module Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 128KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 4mA @ 3.3V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
DS1556P-70 Analog Devices Inc./Maxim Integrated

DS1556P-70

IC RTC CLK/CALENDAR PAR 34PCM

Analog Devices Inc./Maxim Integrated

4,283
RFQ
DS1556P-70 Datasheet

Datasheet

- 34-PowerCap™ Module Bag Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 128KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 3V 6mA @ 5V 0°C ~ 70°C Surface Mount - - 34-PowerCap Module
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Real Time Clocks Electronic Components Sourcing and Lifecycle Support

FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing Real Time Clocks components, we support both current production requirements and long-term component availability across demanding product lifecycles.

Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.

How FPGAX Supports Real Time Clocks Requirements

  • Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
  • End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
  • Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
  • Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
  • Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.

Supply Support at a Glance

Requirement FPGAX Support
Current production Active FPGA, programmable logic, and semiconductor component sourcing
Legacy programs End-of-life and hard-to-find component sourcing
Supply continuity Lifecycle transition and long-term availability support
Quality requirements Traceable sourcing and quality-management processes

Focused on FPGA and Programmable Logic Supply

FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.

Real Time Clocks FAQ

Can FPGAX source both active and end-of-life Real Time Clocks components?

Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.

Which programmable logic manufacturers does FPGAX support?

Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.

How does FPGAX help with component lifecycle changes?

We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.

What quality and traceability standards does FPGAX follow?

FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.

What information should I provide for a Real Time Clocks sourcing request?

Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.