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
BQ3285LCS Texas Instruments

BQ3285LCS

TIMER OR RTC, VOLATILE, CMOS

Texas Instruments

2,170
RFQ
BQ3285LCS Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Bulk Active Not Verified Clock/Calendar Alarm, Daylight Savings, NVSRAM 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 5.5V 2.4V ~ 4V - - Surface Mount - - 24-SSOP
X1288V14IZ Intersil

X1288V14IZ

IC RTC CLK/CALENDAR I2C 14TSSOP

Intersil

186
RFQ
X1288V14IZ Datasheet

Datasheet

2-Wire™ 14-TSSOP (0.173", 4.40mm Width) Bulk Active Not Verified Clock/Calendar Alarm, EEPROM, Leap Year, SRAM, Supervisor, Watchdog Timer, Y2K 32KB HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 14-TSSOP
BQ3285ESS-N Texas Instruments

BQ3285ESS-N

REAL TIME CLOCK, 1 TIMER(S)

Texas Instruments

2,318
RFQ
BQ3285ESS-N Datasheet

Datasheet

* - Bulk Active Not Verified - - - - - - - - - - - - - -
DS1344D-18+TR Analog Devices Inc./Maxim Integrated

DS1344D-18+TR

LOW-CURRENT SPI/3-WIRE RTC

Analog Devices Inc./Maxim Integrated

2,316
RFQ
DS1344D-18+TR Datasheet

Datasheet

- 14-WFDFN Exposed Pad Bulk Active Not Verified Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Trickle-Charger 96B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial, SPI 1.71V ~ 5.5V 1.3V ~ 5.5V 120µA ~ 200µA @ 1.89V ~ 5.5V -40°C ~ 85°C (TA) Surface Mount - - 14-TDFN-EP (3x3)
DS1388Z-3 Analog Devices Inc./Maxim Integrated

DS1388Z-3

IC BATT CHG I2C RTC W/TRICKLE

Analog Devices Inc./Maxim Integrated

1,449
RFQ
DS1388Z-3 Datasheet

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Active - Clock/Calendar Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer 512B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd I2C 2.7V ~ 3.3V 1.3V ~ 5.5V 140µA @ 2.7V ~ 3.3V -40°C ~ 85°C (TA) Surface Mount - - 8-SOIC
BQ3285LSS Benchmarq

BQ3285LSS

IC RTC CLK/CALENDAR PAR 24SSOP

Benchmarq

230
RFQ
BQ3285LSS Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V - - Surface Mount - - 24-SSOP
BQ3285LSS Texas Instruments

BQ3285LSS

IC REAL TIME CLOCK 24-QSOP

Texas Instruments

148
RFQ
BQ3285LSS Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V - - Surface Mount - - 24-SSOP
ISL12032IVZ-T Intersil

ISL12032IVZ-T

IC RTC EVENT REC I2C 14TSSOP

Intersil

2,500
RFQ
ISL12032IVZ-T Datasheet

Datasheet

- 14-TSSOP (0.173", 4.40mm Width) Bulk Obsolete Not Verified Time Event Recorder Alarm, SRAM, Trickle-Charger 128B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 18µA @ 5.5V -40°C ~ 85°C Surface Mount - - 14-TSSOP
BQ3285LDSSTR Texas Instruments

BQ3285LDSSTR

IC RTC CLK/CALENDAR PAR 24SSOP

Texas Instruments

3,206
RFQ
BQ3285LDSSTR Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, NVSRAM 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 5.5V 2.4V ~ 4V 100µA @ 3V 0°C ~ 70°C Surface Mount - - 24-SSOP
BQ3285ESSTR Texas Instruments

BQ3285ESSTR

IC RTC CLK/CALENDAR PAR 24SSOP

Texas Instruments

2,696
RFQ
BQ3285ESSTR Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 4V 300µA @ 5V 0°C ~ 70°C Surface Mount - - 24-SSOP
BQ3285LFSS-A1TR Texas Instruments

BQ3285LFSS-A1TR

IC RTC CLK/CALENDAR PAR 24SSOP

Texas Instruments

2,860
RFQ
BQ3285LFSS-A1TR Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 5.5V 2.4V ~ 4V 100µA @ 3V 0°C ~ 70°C Surface Mount - - 24-SSOP
BQ3285ESTR Texas Instruments

BQ3285ESTR

IC RTC CLK/CALENDAR PAR 24SOIC

Texas Instruments

1,214
RFQ
BQ3285ESTR 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 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 4V 300µA @ 5V 0°C ~ 70°C Surface Mount - - 24-SOIC
DS1344E-18+ Analog Devices Inc./Maxim Integrated

DS1344E-18+

IC RTC CLK/CALENDAR SPI 20TSSOP

Analog Devices Inc./Maxim Integrated

4,489
RFQ
DS1344E-18+ Datasheet

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Bulk Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger 96B HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 1.71V ~ 5.5V 1.3V ~ 5.5V - -40°C ~ 85°C Surface Mount - - 20-TSSOP
BQ3285S-SB2TR Texas Instruments

BQ3285S-SB2TR

IC RTC CLK/CALENDAR PAR 24SOIC

Texas Instruments

1,805
RFQ
BQ3285S-SB2TR 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 ~ 4V - 0°C ~ 70°C Surface Mount - - 24-SOIC
DS3231N/DIP Analog Devices Inc./Maxim Integrated

DS3231N/DIP

EXTREMELY ACCURATE I2C-INTEGRATE

Analog Devices Inc./Maxim Integrated

813
RFQ
DS3231N/DIP Datasheet

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Bulk Active Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal - HH:MM:SS (12/24 hr) YY-MM-DD I2C 2.3V ~ 5.5V 2.3V ~ 5.5V 110µA ~ 170µA @ 3.63V ~ 5.5V -40°C ~ 85°C (TA) Surface Mount - - 16-SOIC
MAX6901ETA-T Analog Devices Inc./Maxim Integrated

MAX6901ETA-T

MAX6901 3-WIRE SERIAL RTC

Analog Devices Inc./Maxim Integrated

4,675
RFQ
MAX6901ETA-T Datasheet

Datasheet

- 8-WDFN Exposed Pad Bulk Active Not Verified Clock/Calendar Alarm, Leap Year, RAM 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 2V ~ 5.5V - 0.7µA ~ 2.2µA @ 2V ~ 5V -40°C ~ 85°C (TA) Surface Mount - - 8-TDFN-EP (3x3)
BQ3285P-SB2 Texas Instruments

BQ3285P-SB2

IC RTC CLK/CALENDAR PAR 24DIP

Texas Instruments

2,560
RFQ
BQ3285P-SB2 Datasheet

Datasheet

- 24-DIP (0.600", 15.24mm) Bulk 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 ~ 4V - 0°C ~ 70°C Through Hole - - 24-PDIP
BQ3285EP Texas Instruments

BQ3285EP

IC RTC CLK/CALENDAR PAR 24DIP

Texas Instruments

2,383
RFQ
BQ3285EP Datasheet

Datasheet

- 24-DIP (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 4V 300µA @ 5V 0°C ~ 70°C Through Hole - - 24-PDIP
BQ3285LFSS-A1 Texas Instruments

BQ3285LFSS-A1

IC RTC CLK/CALENDAR PAR 24SSOP

Texas Instruments

3,236
RFQ
BQ3285LFSS-A1 Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 5.5V 2.4V ~ 4V 100µA @ 3V 0°C ~ 70°C Surface Mount - - 24-SSOP
BQ3285ESS Texas Instruments

BQ3285ESS

IC RTC CLK/CALENDAR PAR 24SSOP

Texas Instruments

4,031
RFQ
BQ3285ESS Datasheet

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 4V 300µA @ 5V 0°C ~ 70°C Surface Mount - - 24-SSOP
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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.