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
DS1248WP-120IND+ Analog Devices Inc./Maxim Integrated

DS1248WP-120IND+

IC RTC PHANTOM PAR 34-PCM

Analog Devices Inc./Maxim Integrated

4,437
RFQ
DS1248WP-120IND+ Datasheet

Datasheet

- 34-PowerCap™ Module Obsolete Not Verified Phantom Time Chip NVSRAM 128KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 7mA @ 3.3V -40°C ~ 85°C Surface Mount - - 34-PowerCap Module
DS1251YP-70+ Analog Devices Inc./Maxim Integrated

DS1251YP-70+

IC RTC PHANTOM PAR 34-PCM

Analog Devices Inc./Maxim Integrated

2,798
RFQ
DS1251YP-70+ Datasheet

Datasheet

* - Obsolete Not Verified - - - - - - - - - - - - - -
DS1315EN-5+ Analog Devices Inc./Maxim Integrated

DS1315EN-5+

IC RTC PHANTOM PAR 20-TSSOP

Analog Devices Inc./Maxim Integrated

3,680
RFQ
DS1315EN-5+ Datasheet

Datasheet

* - Obsolete Not Verified - - - - - - - - - - - - - -
DS1375T+ Analog Devices Inc./Maxim Integrated

DS1375T+

IC RTC CLK/CALENDAR I2C 6TDFN

Analog Devices Inc./Maxim Integrated

1,007
RFQ
DS1375T+ Datasheet

Datasheet

- 6-WDFN Exposed Pad Tube Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output 16B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.7V ~ 5.5V - 0.5µA @ 1.7V ~ 5.5V -40°C ~ 85°C Surface Mount - - 6-TDFN (3x3)
DS1393U-3+ Analog Devices Inc./Maxim Integrated

DS1393U-3+

IC RTC CLK/CALENDAR SER 10-USOP

Analog Devices Inc./Maxim Integrated

4,993
RFQ
DS1393U-3+ Datasheet

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 3-Wire Serial 2.7V ~ 3.3V 1.3V ~ 3.7V 125µA @ 2.7V ~ 3.3V -40°C ~ 85°C Surface Mount - - 10-uMAX/uSOP
DS14285QN+ Analog Devices Inc./Maxim Integrated

DS14285QN+

IC RTC CLK/CALENDAR PAR 28PLCC

Analog Devices Inc./Maxim Integrated

4,945
RFQ
DS14285QN+ Datasheet

Datasheet

- 28-LCC (J-Lead) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.6V 0.5µA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-PLCC (11.51x11.51)
DS14285S+ Analog Devices Inc./Maxim Integrated

DS14285S+

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

4,748
RFQ
DS14285S+ Datasheet

Datasheet

- 24-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.6V 0.5µA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount - - 24-SOIC
DS14285S+T&R Analog Devices Inc./Maxim Integrated

DS14285S+T&R

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

3,904
RFQ
DS14285S+T&R Datasheet

Datasheet

- 24-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.6V 0.5µA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount - - 24-SOIC
DS14285SN+ Analog Devices Inc./Maxim Integrated

DS14285SN+

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

4,276
RFQ
DS14285SN+ Datasheet

Datasheet

- 24-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.6V 0.5µA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 24-SOIC
DS14285SN+T&R Analog Devices Inc./Maxim Integrated

DS14285SN+T&R

IC RTC CLK/CALENDAR PAR 24SOIC

Analog Devices Inc./Maxim Integrated

4,667
RFQ
DS14285SN+T&R Datasheet

Datasheet

- 24-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.6V 0.5µA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 24-SOIC
DS1500WE+ Analog Devices Inc./Maxim Integrated

DS1500WE+

IC RTC CLK/CALENDAR PAR 32TSOP

Analog Devices Inc./Maxim Integrated

1,510
RFQ
DS1500WE+ Datasheet

Datasheet

- 32-LFSOP (0.724", 18.40mm Width) Tray Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V 0°C ~ 70°C Surface Mount - - 32-TSOP
DS1500WEN+ Analog Devices Inc./Maxim Integrated

DS1500WEN+

IC RTC CLK/CALENDAR PAR 32TSOP

Analog Devices Inc./Maxim Integrated

4,550
RFQ
DS1500WEN+ Datasheet

Datasheet

- 32-LFSOP (0.724", 18.40mm Width) Tray Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V -40°C ~ 85°C Surface Mount - - 32-TSOP
DS1500YEN+ Analog Devices Inc./Maxim Integrated

DS1500YEN+

IC RTC CLK/CALENDAR PAR 32TSOP

Analog Devices Inc./Maxim Integrated

1,219
RFQ
DS1500YEN+ Datasheet

Datasheet

- 32-LFSOP (0.724", 18.40mm Width) Tray Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 5mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 32-TSOP
DS1501WS+ Analog Devices Inc./Maxim Integrated

DS1501WS+

IC RTC CLK/CALENDAR PAR 28SOIC

Analog Devices Inc./Maxim Integrated

3,448
RFQ
DS1501WS+ Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V 0°C ~ 70°C Surface Mount - - 28-SOIC
DS1501WS+T&R Analog Devices Inc./Maxim Integrated

DS1501WS+T&R

IC RTC CLK/CALENDAR PAR 28SOIC

Analog Devices Inc./Maxim Integrated

4,582
RFQ
DS1501WS+T&R Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V 0°C ~ 70°C Surface Mount - - 28-SOIC
DS1501WSN+ Analog Devices Inc./Maxim Integrated

DS1501WSN+

IC RTC CLK/CALENDAR PAR 28SOIC

Analog Devices Inc./Maxim Integrated

3,568
RFQ
DS1501WSN+ Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V -40°C ~ 85°C Surface Mount - - 28-SOIC
DS1501WSN+T&R Analog Devices Inc./Maxim Integrated

DS1501WSN+T&R

IC RTC CLK/CALENDAR PAR 28SOIC

Analog Devices Inc./Maxim Integrated

3,092
RFQ
DS1501WSN+T&R Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 3V ~ 3.6V 2.5V ~ 3.7V 4mA @ 3V ~ 3.6V -40°C ~ 85°C Surface Mount - - 28-SOIC
DS1501YEN+ Analog Devices Inc./Maxim Integrated

DS1501YEN+

IC RTC CLK/CALENDAR PAR 28TSOP

Analog Devices Inc./Maxim Integrated

3,758
RFQ
DS1501YEN+ Datasheet

Datasheet

- 28-TSSOP (0.465", 11.80mm Width) Tray Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 5mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-TSOP
DS1501YEN+T&R Analog Devices Inc./Maxim Integrated

DS1501YEN+T&R

IC RTC CLK/CALENDAR PAR 28TSOP

Analog Devices Inc./Maxim Integrated

4,514
RFQ
DS1501YEN+T&R Datasheet

Datasheet

- 28-TSSOP (0.465", 11.80mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 5mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-TSOP
DS1501YS+ Analog Devices Inc./Maxim Integrated

DS1501YS+

IC RTC CLK/CALENDAR PAR 28SOIC

Analog Devices Inc./Maxim Integrated

2,298
RFQ
DS1501YS+ Datasheet

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 256B HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 5mA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount - - 28-SOIC
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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.