Real Time Clocks

Use the filters and product table below to compare Real Time Clocks components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

Parametric Selection Filter options by technical parameters

Stock & Datasheets Review availability and technical references

RFQ & BOM Support Send your target MPN, quantity or BOM

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
M41T93RMY6E IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	2,333	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T56MH6E IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	3,552	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM	56B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
M41T93SMY6E IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	3,566	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T93ZMY6E IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	2,588	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.38V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M48T86MH1E IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	3,739	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	15mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	28-SOH
M41T56C64MY6E IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	4,276	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	EEPROM, Leap Year, NVSRAM	56B, 8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T00SC64MY6E IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	3,721	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	EEPROM, Leap Year	8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	2.5V ~ 35V	100µA (Typ) @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T11MH6E IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	4,444	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM	56B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	2.5V ~ 3.5V	70µA @ 2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
M41T94MH6E IC RTC CLK/CALENDAR SPI 28SOH STMicroelectronics	2,519	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 5.5V	2.5V ~ 3.5V	1.4mA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
M41T00AUDD1F IC RTC CLK/CALENDAR I2C 16DFN STMicroelectronics	3,451	-	RFQ	Datasheet	-	16-VFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Audio, Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	1.7V ~ 3.6V	14.3mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	-	-	16-DFN (5x4)

WINSUN SOURCING SUPPORT

Need Help Sourcing Real Time Clocks?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing

Send part number & quantity Request a Quote

Need sourcing assistance? Contact Sales

FREQUENTLY ASKED QUESTIONS

Real Time Clocks FAQ

Common questions about filtering, comparing and sourcing Real Time Clocks components.

How can I narrow the Real Time Clocks selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Real Time Clocks part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.