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
ABLIC Inc. Abracon LLC Ambiq Micro, Inc. ams-OSRAM USA INC. Analog Devices Inc./Maxim Integrated Austria Micro Benchmarq Cymbet Corporation Dallas Semiconductor Diodes Incorporated ECS Inc. Elantec EM Microelectronic Epson Harris Corporation Intersil KYOCERA AVX Micro Connectors, Inc. Microchip Technology National Semiconductor Nisshinbo Micro Devices Inc. NXP Semiconductors Raltron Electronics Renesas Rochester Electronics, LLC ROHM Semiconductor Simtek SparkFun Electronics STMicroelectronics Suntsu Electronics, Inc Suzhou Maswell Communication Technology Co. Ltd Texas Instruments	* - 2-Wire™ Artasie C2 C3 C7 C8 EconoRAM LV8571A RA-4574SA RA-8565SA RTC-4543SA RTC-4543SB RTC-4574JE RTC-4574NB RTC-4574SA RTC-72421 RTC-72423 RTC-8564JE RTC-8564NB RX-4035LC RX-4035SA RX-4045NB RX-4045SA RX-4571LC RX-4571NB RX-4571SA RX-4574LC RX-4575LC RX-4581NB RX-4801SA RX-4803LC RX-4803SA RX-8025NB RX-8025SA RX-8035LC RX-8035SA RX-8564LC RX-8571LC RX-8571NB RX-8571SA RX-8581JE RX-8581NB RX-8581SA RX-8731LC RX-8801SA RX-8803LC RX-8803SA RX4111CE RX4901CE RX6110SA RX8010SJ RX8111CE RX8130CE RX8804CE RX8900CE RX8900SA RX8901CE S-35190A H S-35390A H S-35399A03 Timekeeper® Timekeeper®, CAPHAT™	- 10-LFSOP (0.173", 4.40mm Width) 10-LFSOP, 10-MSOP (0.110", 2.80mm Width) 10-LLGA 10-SMD Module 10-SMD, No Lead 10-TDFN Exposed Pad 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-VCDFN 10-VFDFN Exposed Pad 10-VFSOP, 10-MSOP (0.110", 2.80mm Width) 10-WFDFN Exposed Pad 10-XFDFN Exposed Pad 12-TFSOJ (0.094", 2.40mm Width) 12-UFBGA, WLBGA 12-VFDFN Exposed Pad 12-WFBGA, WLBGA 12-XFBGA, WLCSP 12-XFQFN Exposed Pad 14-DIP Module (0.335", 8.51mm) 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.197", 5.00mm Width) 14-TSSOP (0.173", 4.40mm Width) 14-WFDFN Exposed Pad 16-DIP (0.300", 7.62mm) 16-LFDFN Exposed Pad 16-LSSOP (0.173", 4.40mm Width) 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.295", 7.50mm Width) 16-SSOP (0.209", 5.30mm Width) 16-UFQFN Exposed Pad 16-VFDFN Exposed Pad 16-VFQFN Exposed Pad 16-VQFN Exposed Pad 16-XFQFN Exposed Pad 168-BBGA Module 168-PBGA Module 18-DIP (0.300", 7.62mm) 18-SOIC (0.213", 5.40mm Width) 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-XFQFN Exposed Pad 20-LSSOJ (0.213", 5.40mm Width) 20-PowerLFDFN 20-SOIC (0.295", 7.50mm Width) 20-SSOP (0.154", 3.90mm Width) 20-SSOP (0.209", 5.30mm Width) 20-TSSOP (0.173", 4.40mm Width) 20-VQFN Exposed Pad 22-LFDFN 22-SMD Module Exposed Pad 22-SMD, 20 Leads, Flat Leads 24-CDIP (0.300", 7.62mm) 24-DIP (0.300", 7.62mm) 24-DIP (0.600", 15.24mm) 24-DIP Module (0.600", 15.24mm) 24-DIP Module (0.61", 15.49mm) 24-SOIC (0.295", 7.50mm Width) 24-SOIC (0.311", 7.90mm Width) 24-SOP (0.213", 5.40mm Width) 24-SSOP (0.154", 3.90mm Width) 24-TSSOP (0.173", 4.40mm Width) 28-DIP (0.600", 15.24mm) 28-DIP Module (0.600", 15.24mm) 28-DIP Module (0.61", 15.49mm) 28-DIP Module (0.61", 15.49mm), 23 Leads 28-LCC (J-Lead) 28-SOIC (0.295", 7.50mm Width) 28-SOIC (0.337", 8.56mm Width) 28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets 28-SOIC (0.345", 8.77mm Width) with SNAPHAT Sockets 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-TSSOP (0.173", 4.40mm Width) 28-TSSOP (0.465", 11.80mm Width) 32-DIP Module (0.600", 15.24mm) 32-DIP Module (0.61", 15.49mm) 32-DIP Module (0.610", 15.49mm) 32-LFSOP (0.724", 18.40mm Width) 32-TQFP 34-LPM 34-PowerCap™ Module 36-DIP Module (0.610", 15.49mm) 44-BSOP (0.337", 8.56mm Width) 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-QFP 48-BBGA 48-LQFP 6-SMD, J-Lead 6-VBGA, FCBGA 6-VFBGA, FCBGA 6-WDFN Exposed Pad 8-DIP (0.300", 7.62mm) 8-LCC 8-LSSOP (0.173", 4.40mm Width) 8-SMD 8-SMD, Flat Leads 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.173", 4.40mm Width) 8-SOIC (0.173", 4.40mm Width) Exposed Pad 8-SOIC (0.209", 5.30mm Width) 8-SOIC (0.295", 7.50mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-UFDFN 8-UFDFN Exposed Pad 8-VDFN Exposed Pad 8-VFBGA, WLBGA 8-VSSOP, 8-MSOP (0.110", 2.80mm Width) 8-WCDFN 8-WDFN Exposed Pad 8-WFBGA, WLBGA 8-WFDFN Exposed Pad 8-XFBGA, WLCSP 80-BBGA Die Module	Bag Bulk Strip Tape & Reel (TR) Tray Tube	Active Discontinued at Digi-Key Last Time Buy Not For New Designs Obsolete	- Not Verified Verified	- Binary Counter Clock/Calendar Clock/Calendar/Supervisor Elapsed Time Counter Phantom Time Chip Portable System Controller Real Time Clock (RTC) Temperature Recorder Time Event Recorder Timer Clock Peripheral (TCP)	- Alarm Alarm, Backup Supply Charger, Leap Year, RAM Alarm, Battery Switch, Clock Output Hz-MHz, Event Input, Temperature Alarm, Timer, Trickle Charge with Charge Pump Alarm, Battery Switch, EEPROM, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer, Trickle Charger Alarm, Battery Switch, Leap Year, Programmable Clock Output, Timer, Watchdog Timer Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Alarm, Daylight Savings, Leap Year, RAM Alarm, Daylight Savings, Leap Year, SRAM Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Alarm, Daylight Savings, NVRAM, NVSRAM, Square Wave Output, Y2K Alarm, Daylight Savings, NVSRAM Alarm, Daylight Savings, SRAM Alarm, EEPROM Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger Alarm, EEPROM, Leap Year, RAM, Trickle-Charger Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Trickle-Charger Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Trickle-Charger Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Alarm, EEPROM, Leap Year, Square Wave Output, Trickle-Charger Alarm, EEPROM, Leap Year, SRAM, Supervisor, Watchdog Timer, Y2K Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer Alarm, EEPROM, Leap Year, Supervisor, Watchdog Timer Alarm, EEPROM, Leap Year, Unique ID Alarm, EEPROM, RAM, Trickle Charger Alarm, EEPROM, TCXO/Crystal, Trickle-Charger Alarm, External Event Interrupt, Leap Year, Programmable Clock Output, RAM, Timer Alarm, FRAM, Leap Year, Square Wave Output, TCXO/Crystal Alarm, Leap Year Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Alarm, Leap Year, NVRAM, Square Wave Output, Trickle-Charger Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer Alarm, Leap Year, NVSRAM, Square Wave Output Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Alarm, Leap Year, NVSRAM, Trickle-Charger Alarm, Leap Year, NVSRAM, Watchdog Timer Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Alarm, Leap Year, NVSRAM, Y2K Alarm, Leap Year, Offset Compensation, Programmable Clock Output, RAM, Timer Alarm, Leap Year, Programmable Clock Output, RAM, Timer Alarm, Leap Year, Programmable Clock Output, Timer Alarm, Leap Year, Programmable Clock Output, Watchdog Timer Alarm, Leap Year, RAM Alarm, Leap Year, RAM, Square Wave Output, SRAM, Trickle Charger Alarm, Leap Year, RAM, Square Wave Output, Supervisor, Trickle Charger, Unique ID, Watchdog Timer Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger, Unique ID, Watchdog Timer Alarm, Leap Year, RAM, SRAM Alarm, Leap Year, RAM, Trickle Charger Alarm, Leap Year, Square Wave Output Alarm, Leap Year, Square Wave Output, SRAM Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K Alarm, Leap Year, Square Wave Output, TCXO/Crystal Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer Alarm, Leap Year, Square Wave Output, Trickle-Charger Alarm, Leap Year, Square Wave Output, Unique ID Alarm, Leap Year, Square Wave Output, Watchdog Timer Alarm, Leap Year, SRAM Alarm, Leap Year, SRAM, Trickle-Charger Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer Alarm, Leap Year, SRAM, Watchdog Timer Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer Alarm, Leap Year, Supervisor, Watchdog Timer Alarm, Leap Year, Trickle-Charger Alarm, Leap Year, Unique ID Alarm, Leap Year, Unique ID, Y2K Alarm, Leap Year, Watchdog Timer Alarm, Leap Year, Watchdog Timer, Y2K Alarm, NVRAM, Square Wave Output, Trickle-Charger, Watchdog Timer Alarm, NVSRAM Alarm, NVSRAM, Square Wave Output Alarm, NVSRAM, Square Wave Output, Y2K Alarm, Programmable Clock Output, RAM, Timer, Trickle Charger, Watchdog Timer Alarm, RAM Alarm, Square Wave Output Alarm, Square Wave Output, SRAM Alarm, Square Wave Output, SRAM, Trickle Charge, Watchdog Timer Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer Alarm, Square Wave Output, Watchdog Timer Alarm, SRAM Alarm, SRAM, Trickle-Charger Alarm, Supervisor, Watchdog Timer Alarm, Watchdog Timer Alarm, Y2K Audio, Leap Year, Trickle-Charger EEPROM, Leap Year EEPROM, Leap Year, NVSRAM EEPROM, Leap Year, NVSRAM, RAM EEPROM, Leap Year, RAM, SRAM EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer Leap Year Leap Year, NVSRAM Leap Year, NVSRAM, RAM, Trickle-Charger Leap Year, NVSRAM, Square Wave Output Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Leap Year, NVSRAM, Trickle-Charger Leap Year, NVSRAM, Y2K Leap Year, RAM Leap Year, RAM, Square Wave Output Leap Year, Square Wave Output Leap Year, Square Wave Output, Trickle-Charger Leap Year, Square Wave Output, Y2K Leap Year, SRAM Leap Year, Supervisor Leap Year, Trickle-Charger Leap Year, Watchdog Timer NVSRAM Square Wave Output Square Wave Output, Unique ID Trickle-Charger Unique ID	- 10B 113B 114B 120b 128B 128KB 16B 16B, 32B 1B 236B 240B 242B 256B 2B 2B, 43B 2B, 8B 2KB 2MB 31B 32B 32KB 3B 43B 44B 4KB 50B 512B 512KB 56B 56B, 8KB 64B 64B, 1Kb 7B 80b 8B 8KB 96B	- Binary HH:MM:SS HH:MM:SS (12/24 hr) HH:MM:SS (24 hr) HH:MM:SS:100th (24 hr) HH:MM:SS:hh HH:MM:SS:hh (12/24 hr) HH:MM:SS:hh (24 hr)	- Binary YY-MM-DD YY-MM-DD-dd YYYY-MM-DD	- 1-Wire® and 3-Wire 1-Wire® Serial 2-Wire Serial 3-Wire Serial 3-Wire Serial, 4-Wire Serial 3-Wire Serial, SPI 4-Wire Serial I2C I2C, 2-Wire Serial I2C, Serial I2C, SMBus I2C, SPI Multiplexed Parallel Parallel, Serial Serial SPI SPI, 3-Wire Serial SPI, 4-Wire Serial	- 0.9V ~ 1.8V, 0.9V ~ 5.5V 0.9V ~ 5.5V 0.9V ~ 5.5V, 1.8V ~ 5.5V 1.1V ~ 5.5V 1.1V, 1.2V, 2V ~ 5.5V 1.25V ~ 5.5V 1.2V ~ 5.5V 1.35V ~ 5.5V 1.3V ~ 4.4V 1.3V ~ 5.5V 1.3V ~ 5.5V, 2.1V ~ 5.5V 1.4V ~ 5.5V 1.4V ~ 5.5V, 2.1V ~ 5.5V 1.5V ~ 3.6V 1.5V ~ 4.4V 1.5V ~ 5.5V 1.6V ~ 3.6V 1.6V ~ 5.5V 1.6V ~ 5V, 2.5V ~ 5V 1.71V ~ 1.89V 1.71V ~ 5.5V 1.7V ~ 3.6V 1.7V ~ 5.5V 1.7V ~ 6V 1.8V ~ 2.2V 1.8V ~ 3.6V 1.8V ~ 4.2V 1.8V ~ 5.5V 1.8V ~ 6V 1.9V, 2.6V ~ 5.5V 1V ~ 4.4V 1V ~ 5.5V 2.34V ~ 5.5V 2.38V ~ 5.5V 2.3V ~ 4.5V 2.3V ~ 5.5V 2.4V ~ 5.5V 2.5V ~ 5.5V 2.5V ~ 5V 2.5V ~ 6V 2.63V ~ 5.5V 2.7V ~ 3.3V 2.7V ~ 3.3V, 4.5V ~ 5.5V 2.7V ~ 3.63V 2.7V ~ 3.6V 2.7V ~ 3.7V 2.7V ~ 3.7V, 4.5V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 6V 2.8V ~ 5.5V 2.97V ~ 3.63V 2.97V ~ 3.63V, 4.5V ~ 5.5V 2.97V ~ 5.5V 2V ~ 5.5V 3.3V ~ 5.5V 3V 3V ~ 3.6V 3V ~ 3.7V 3V ~ 5.5V 3V ~ 6V 3V, 3.3V, 5V 4.5V ~ 5.5V 4.75V ~ 5.25V 4.75V ~ 5.5V 4V ~ 5.5V 5.5V 5V	- 0.9V ~ 3.6V 0.9V ~ 5.5V 1.15V ~ 5.5V 1.1V ~ 5.5V 1.2V ~ 5.5V 1.3V ~ 3.63V 1.3V ~ 3.6V 1.3V ~ 3.7V 1.3V ~ 5.5V 1.4V ~ 3.6V 1.4V ~ 5.5V 1.55V ~ 3.6V 1.5V ~ 3.6V 1.5V ~ 3.7V 1.5V ~ 5.5V 1.6V ~ 3.6V 1.6V ~ 3.7V 1.6V ~ 5.5V 1.6V ~ 5V 1.7V ~ 3.6V 1.8V ~ 4.2V 1.8V ~ 5.5V 1V ~ 5.5V 2.2V ~ 3.2V 2.2V ~ 5.1V 2.2V ~ 6V 2.3V ~ 3.6V 2.3V ~ 4.5V 2.3V ~ 4V 2.3V ~ 5.5V 2.4V ~ 3.5V 2.4V ~ 4V 2.5V ~ 3.5V 2.5V ~ 3.6V 2.5V ~ 3.7V 2.5V ~ 35V 2.5V ~ 4V 2.5V ~ 5.5V 2.6V ~ 3.5V 2.7V ~ 4.95V 2.8V ~ 3.5V 2.8V ~ 5.5V 2V ~ 3.05V 2V ~ 3.5V 2V ~ 3.8V 2V ~ 4V 2V ~ 5.5V 3.2V 3.3V 3V 3V ~ 4.5V 4.1V Integrated	- 0.05µA @ 2.5V ~ 5.5V 0.06µA @ 2.5V ~ 5.5V 0.06µA @ 3V 0.08µA @ 3V 0.17µA ~ 0.22µA @ 1.8V ~ 3V 0.18µA @ 3V 0.24µA @ 3V 0.25µA @ 3V 0.25µA ~ 0.27µA @ 3V ~ 5V 0.25µA ~ 0.45µA @ 3V ~ 5V 0.29µA ~ 0.33µA @ 1.8V ~ 3V 0.32µA ~ 0.35µA @ 3V ~ 5V 0.33µA @ 3V 0.33µA ~ 0.38µA @ 2V ~ 5V 0.33µA ~ 0.39µA @ 1.6V ~ 3.6V 0.35µA @ 3V 0.35µA ~ 0.4µA @ 2V ~ 5V 0.3µA @ 1.3V ~ 1.8V 0.3µA ~ 0.4µA @ 1.1V ~ 5V 0.3µA ~ 1µA @ 2V ~ 5V 0.45µA @ 2.5V ~ 5.5V 0.45µA ~ 0.55µA @ 2V ~ 5V 0.49µA ~ 0.6µA @ 3V ~ 5V 0.4µA @ 1.6V ~ 5.5V 0.4µA @ 3V 0.4µA @ 5V 0.4µA ~ 0.95µA @ 1V ~ 4.4V 0.55µA ~ 0.6µA @ 3V ~ 5V 0.5mA @ 2.7V ~ 3.6V 0.5µA @ 1.5V 0.5µA @ 1.7V ~ 5.5V 0.5µA @ 2V ~ 5V 0.5µA @ 3V 0.5µA @ 4.5V ~ 5.5V 0.5µA @ 5V 0.5µA ~ 0.52µA @ 3V ~ 5V 0.5µA ~ 0.6µA @ 3V ~ 5V 0.5µA ~ 0.7µA @ 1.6V ~ 5.5V 0.5µA ~ 1µA @ 3V ~ 5V 0.63µA ~ 1.7µA 0.65µA @ 1.8V 0.65µA ~ 0.7µA @ 1.1V ~ 5.5V 0.65µA ~ 0.7µA @ 3V ~ 5V 0.65µA ~ 0.85µA @ 3V ~ 5V 0.65µA ~ 0.8µA @ 2V ~ 5V 0.6µA @ 1.3V ~ 1.8V 0.6µA @ 3.3V 0.6µA ~ 0.75µA @ 2V ~ 5V 0.6µA ~ 0.7µA @ 3V ~ 5V 0.6µA ~ 14µA @ 3V ~ 5V 0.7µA @ 1.7V ~ 3.6V 0.7µA ~ 0.8µA @ 2V ~ 5V 0.7µA ~ 0.8µA @ 3V ~ 5V 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V 0.7µA ~ 0.95µA @ 3.6V ~ 4.4V 0.7µA ~ 0.9µA @ 3V ~ 5V 0.7µA ~ 2.2µA @ 2V ~ 5V 0.85µA ~ 0.9µA @ 3V ~ 5V 0.885µA @ 3.3V 0.8µA @ 1.2V ~ 1.8V 0.8µA @ 1.3V ~ 1.8V 0.8µA @ 2.4V ~ 5.5V 0.8µA @ 3V 0.8µA @ 5V 0.8µA ~ 1.2µA @ 3V ~ 5V 0.93µA ~ 1.1µA @ 3V ~ 5V 0.95µA ~ 1µA @ 3V ~ 5V 0.9µA @ 3V 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V 0.9µA ~ 1.8µA @ 2V ~ 5V 0.9µA ~ 2µA @ 3V ~ 6V 1.05µA ~ 4.2µA @ 2V ~ 5V 1.1mA @ 3.3V 1.2µA (Typ) @ 3.3V 1.2µA @ 3.3V 1.2µA ~ 1.4µA @ 3V ~ 5V 1.2µA ~ 1.8µA @ 3V ~ 5V 1.2µA ~ 2µA @ 1.6V ~ 5.5V 1.2µA ~ 31µA @ 3V ~ 5.5V 1.2µA ~ 5µA @ 2V ~ 5V 1.3mA @ 5V 1.3µA @ 1.7V ~ 5.5V 1.4mA @ 2.7V ~ 3.6V 1.4mA @ 2.7V ~ 5.5V 1.4µA ~ 1.5µA @ 3V ~ 5V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 1.5mA @ 4.5V ~ 5.5V 1.5µA @ 3.3V 1.5µA @ 3V 1.5µA @ 5V 1.5µA ~ 1.6µA @ 3V ~ 5V 1.5µA ~ 2.2µA @ 1.4V ~ 5V 1.5µA ~ 2µA @ 3V ~ 5.5V 1.5µA ~ 2µA @ 3V ~ 6V 1.6µA ~ 2µA @ 3V ~ 5V 1.8µA @ 2V ~ 5V 1.8µA @ 5V 1.8µA ~ 2µA @ 3V ~ 5V 1.8µA ~ 3µA @ 2V ~ 5V 100µA (Typ) @ 2.7V ~ 5.5V 100µA (Typ) @ 4.5V ~ 5.5V 100µA @ 1.71V ~ 1.89V 100µA @ 1.89V 100µA @ 2.2V 100µA @ 2.7V ~ 5.5V 100µA @ 200µA @ 1.89V ~ 5.5V 100µA @ 2V ~ 5.5V 100µA @ 3.3V 100µA @ 3V 10mA @ 5V 10µA @ 3V 10µA @ 5.5V 10µA @ 5V 10µA ~ 15µA @ 3V ~ 5V 10µA ~ 20µA @ 2.7V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 10µA ~ 50µA @ 1V ~ 5V 110µA @ 3.63V 110µA ~ 170µA @ 3.63V ~ 5.5V 120µA ~ 1.8µA @ 3V ~ 5V 120µA ~ 160µA @ 3.3V ~ 5.5V 120µA ~ 160µA @ 3.63V ~ 5.5V 120µA ~ 200µA @ 1.89V ~ 5.5V 125µA @ 2.7V ~ 3.3V 125µA @ 2.7V ~ 5.5V 125µA @ 3.3V 125µA ~ 200µA @ 3.63V ~ 5.5V 125µA ~ 200µA @ 3V ~ 5.5V 130µA ~ 200µA @ 3.63V ~ 5.5V 14.3mA @ 3V ~ 3.6V 140µA @ 2.7V ~ 3.3V 14µA ~ 15µA @ 3V ~ 5V 14µA ~ 30µA @ 3V ~ 5V 150µA @ 1.5V ~ 5.5V 150µA @ 2.97V ~ 3.63V 150µA @ 3.3V 150µA @ 3.63V 150µA @ 3V ~ 3.6V 150µA @ 5.5V 15mA @ 4.5V ~ 5.5V 15µA @ 3V 15µA @ 5.5V 15µA @ 5V 175µA @ 2.3V ~ 4.5V 175µA @ 2.97V ~ 5.5V 180nA @ 3V 18µA @ 5.5V 1mA @ 3.3V 1mA @ 4.5V ~ 5.5V 1µA @ 1.8V ~ 3.6V 1µA @ 1.8V ~ 5.5V 1µA @ 3V 1µA @ 3V ~ 5V 1µA @ 5.5V 1µA @ 5V 1µA ~ 1.35µA @ 3V ~ 5.5V 1µA ~ 1.8µA @ 3V ~ 5V 1µA ~ 2µA @ 3V ~ 5V 1µA ~ 3µA @ 2V ~ 5V 2.1µA @ 3V 2.1µA ~ 3.4µA @ 3V ~ 5V 2.4µA ~ 31µA @ 2V ~ 5.5V 2.5mA @ 4.5V ~ 5.5V 2.5µA @ 3V 2.8µA ~ 3.4µA @ 3V ~ 5V 200µA @ 1.71V ~ 5.5V 200µA @ 3.3V 200µA @ 3.63V ~ 5.5V 200µA @ 5.5V 200µA @ 5V 20µA @ 5V 20µA ~ 500µA @ 5V 210nA @ 3V 220µA @ 3V ~ 3.6V 25.3µA ~ 81µA @ 2V ~ 5V 250µA @ 3V ~ 5.5V 270µA @ 4.5V ~ 5.5V 2mA @ 2.7V ~ 3.6V 2mA @ 2.7V ~ 3.7V 2mA @ 2.97V ~ 3.63V 2mA @ 3.3V 2mA @ 3V 2mA @ 3V ~ 3.6V 2mA @ 3V, 3mA @ 5V 2mA @ 4.5V ~ 5.5V 2mA @ 4.75V ~ 5.5V 2µA @ 3.3V 2µA @ 3.63V 2µA @ 3V 30.3µA @ 2V ~ 5V 300µA @ 5V 3mA @ 3V ~ 3.6V 3mA @ 4.5V ~ 5.5V 3mA @ 4.75V ~ 5.5V 3mA @ 4.7V ~ 5.5V 3mA @ 5V 3µA @ 3V 3µA @ 5V 3µA ~ 3.5µA @ 3V ~ 5.5V 4.6µA ~ 5.5µA @ 1.4V ~ 5V 4.9µA ~ 5.1µA @ 3V ~ 5V 4mA @ 3.3V 4mA @ 3V ~ 3.6V 4mA @ 4.5 V ~ 5.5 V 4mA @ 4.5V ~ 5.5V 4mA @ 5V 4µA @ 3V 4µA ~ 15µA @ 2V ~ 5V 4µA ~ 15µA @ 3V ~ 5.5V 4µA ~ 6µA @ 3V ~ 5V 4µA ~ 7µA @ 3V ~ 5V 5.5µA ~ 6.5µA @ 3V ~ 5V 500nA @ 3V 500µA @ 2.2V 500µA @ 3.3V 500µA @ 3.63V 500µA @ 5V 50µA @ 5V 50µA ~ 3mA @ 3V ~ 5V 5mA @ 4.5V ~ 5.5V 5mA @ 5V 5mA ~ 10mA @ 3V ~ 5V 5µA @ 3.63V ~ 5.5V 5µA ~ 10µA @ 2V ~ 5V 5µA ~ 7.8µA @ 1.2V ~ 5.5V 65µA @ 3.3V 6mA @ 2.2 V ~ 5.8 V 6mA @ 5V 700nA ~ 900nA @ 3V ~ 5V 70µA @ 1.5V ~ 5.5V 70µA @ 2.7V ~ 5.5V 70µA @ 2V ~ 5.5V 750nA ~ 800nA @ 1.8V ~ 4.2V 770nA ~ 2.135µA @ 1.2V ~ 5.5V 7mA @ 3.3V 7mA @ 5V 7µA @ 5V 8µA ~ 14µA @ 3V ~ 5V 8µA ~ 15µA @ 2V ~ 5V 950nA ~ 1µA @ 3V ~ 5V	- -10°C ~ 70°C -20°C ~ 70°C -25°C ~ 70°C -30°C ~ 70°C -30°C ~ 80°C -40°C ~ 105°C -40°C ~ 105°C (TA) -40°C ~ 125°C -40°C ~ 125°C (TA) -40°C ~ 85°C -40°C ~ 85°C (TA) 0°C ~ 70°C 0°C ~ 70°C (TA)	- Surface Mount Surface Mount, Wettable Flank Through Hole	- Automotive	- AEC-Q100 AEC-Q200	- 10-DFN (2.6x2.6) 10-HVSON (3x3) 10-LGA (5x5) 10-MSOP 10-SMD 10-SON (3.7x2.5) 10-SON (5x3.2) 10-SSOP 10-SSOP-G 10-TDFN (3x3) 10-TSSOP 10-TSSOPG 10-uMAX 10-uMAX/uSOP 12-HVSON (3x3) 12-UFBGA, WLBGA 12-VSOJ 12-WLCSP (1.19x0.94) 12-WLP (1.47x1.97) 12-WLP (1.63x1.23) 12-WLP (2.14x1.56) 14-EDIP 14-SOIC 14-SOP 14-TDFN (3x3) 14-TDFN-EP (3x3) 14-TSSOP 16-DFN (5x4) 16-HLSON (4.5x3.5) 16-HVQFN (3x3) 16-MLPQ (3x3) 16-PDIP 16-QFN (3x3) 16-QFN (4x4) 16-SO 16-SOIC 16-SSOP 168-BGA (40x40) 168-PBGA Module (42.3x42.3) 18-DIP 18-QFN (2x2) 18-SOP 18-SOX 20-DFN (5.5x4) 20-HVQFN (5x5) 20-QSOP 20-SO 20-SOIC 20-SSOP 20-TSSOP 20-VSOJ 22-SON 22-SON (6.1x4.7) 22-SON (6.3x4.8) 24-CERDIP 24-DIP 24-DIP Module 24-EDIP 24-PCDIP, CAPHAT® 24-PDIP 24-SOIC 24-SOP 24-SSOP 24-SSOP/QSOP 24-TSSOP 28-DIP Module 28-DIP Module (18.42x37.72) 28-EDIP 28-PCDIP, CAPHAT® 28-PDIP 28-PLCC (11.51x11.51) 28-SO 28-SOH 28-SOIC 28-SOP 28-TSOP 28-TSSOP 32-DIP Module (18.42x42.8) 32-DIP Module (18.42x52.96) 32-EDIP 32-PMDIP 32-PMDIP Module 32-TQFP (7x7) 32-TSOP 34-LPM 34-PowerCap Module 36-DIP Module 36-DIP Module (18.42x52.96) 44-MQFP (10x10) 44-SOH 48-LQFP (7x7) 48-PBGA (11.8x15.3) 6-FlipChip (1.09x1.37) 6-FlipChip (2.82x2.54) 6-TDFN (3x3) 6-TDFN-EP (3x3) 6-TSOC 8-CLCC (3.2x1.5) 8-DIP 8-EMP 8-HSOP-E 8-HVSON (4x4) 8-HWSON (2x3) 8-LCC (1.5x3.2) 8-MSOP 8-PDIP 8-SO 8-SOIC 8-SON (2x1.2) 8-SON (3.2x1.5) 8-SOP 8-SOP-J 8-SSOP 8-TDFN (2x2) 8-TDFN (2x3) 8-TDFN (3x3) 8-TDFN EP 8-TDFN-EP (3x3) 8-TSSOP 8-TSSOP-B 8-uMAX/uSOP 8-UTDFN (2x2) 8-WLCSP 8-WLP (.97x1.97) 8-WLP (2.07x2.27) 8-µTDFN (2x2) 80-BGA (40x40) Die Module QFN018018-12 QFN023023-16 SMD SNT-8A VSON008X2030

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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
ISL12082IB8Z IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	2,161	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4µA ~ 6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1337DVGI IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	1,169	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
1337DVGI8 IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	2,360	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
1338-18DCGI IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	3,295	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1338-18DCGI8 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	4,397	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1339-2DCGI IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	3,099	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1339-2DCGI8 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,306	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
1339-2DVGI IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	4,231	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
1339-2DVGI8 IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	4,238	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
PCF2123TS/1,112 IC RTC CLK/CALENDAR SPI 14TSSOP NXP USA Inc.	3,496	-	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-TSSOP
DS17285EN-3+ IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	3,770	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	2KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	-40°C ~ 85°C	Surface Mount	-	-	28-TSOP
DS1673S-5+T&R IC RTC SYST CTRLR SER 20SOIC Analog Devices Inc./Maxim Integrated	3,360	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	-	-	20-SOIC
ISL12059IBZ-T IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	4,490	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
ISL12057IRUZ-T IC RTC CLK/CALENDAR I2C 8UTDFN Renesas Electronics Corporation	3,371	-	RFQ	Datasheet	-	8-UFDFN	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-UTDFN (2x2)
ISL12058IRUZ-T IC RTC CLK/CALENDAR I2C 8UTDFN Renesas Electronics Corporation	2,384	-	RFQ	Datasheet	-	8-UFDFN	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-UTDFN (2x2)
ISL12059IBZ IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	4,808	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
PCF2129AT/1,512 IC RTC CLOCK/CALENDAR I2C 20SO NXP USA Inc.	3,891	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	20-SO
PCF2127AT/1,512 IC RTC CLOCK/CALENDAR I2C 20SO NXP USA Inc.	4,029	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer	512B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	20-SO
PCF2123BS/1,512 IC RTC CLK/CALENDAR SPI 16HVQFN NXP USA Inc.	3,472	-	RFQ	Datasheet	-	16-VFQFN Exposed Pad	Tube	Discontinued at Digi-Key	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	16-HVQFN (3x3)
PCF2129AT/1,518 IC RTC CLOCK/CALENDAR I2C 20SO NXP USA Inc.	4,276	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 4.2V	1.8V ~ 4.2V	1.5µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	20-SO

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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.