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Part Details	Price (USD)	Stock	Lead Time	Date Code	Package	Package Style	Date Format	Time Format	Interface	Non-Volatile Memory Size	SRAM Size	Supply Voltage-Nom	Temperature Grade	Operating Temp Range	Storage Temperature Range	Moisture Sensitivity Level	Mounting Feature
Compare Datasheet PCF8523T/1,118 NXP PCF8523 Series 5.5 V 1 Mbps I2C Interface Real Time Clock / Calendar - SOIC-8 List Min: 1 Mult. of: 1 Quantity More Info Increase Button Decrease Button	1: $1.04 50: $0.97 100: $0.90 250: $0.84 500: $0.78	57,449	7 Weeks	1903	Cut Tape Available in Mini-Reel	SOIC-8	DW:DM:M:Y/Binary	HH:MM:SS/Binary	I2C			1.6V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet PCF8523T/1,118 NXP PCF8523 Series 5.5 V 1 Mbps I2C Interface Real Time Clock / Calendar - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $0.62	55,000	7 Weeks	1903	Reel	SOIC-8	DW:DM:M:Y/Binary	HH:MM:SS/Binary	I2C			1.6V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet M41T81SMY6F STMicroelectronics SO18 .30 WITH EMBEDDED CRYSTAL List Min: 1,000 Mult. of: 1,000 Quantity Increase Button Decrease Button	1,000: $3.00	22,000	30 Weeks	1908	Reel	SOX-18	DW:DM:M:Y	HH:MM:SS:hh	I2C / 2-Wire / Serial		20b	2.7V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C		Surface Mount
Compare Datasheet DS1307Z+T&R Maxim Integrated DS1307 Series 5.5V I2C / Serial Surface Mount Real Time Clock - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $1.95	20,000	6 Weeks	1829	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	56B		4.5V to 5.5V	Commercial	0°C to 70°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet M41T00M6F STMicroelectronics M41T00 Series 5.5 V I2C / 2-Wire / Serial Surface Mount Real Time Clock - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $1.65	12,500	10 Weeks	1844	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C / 2-Wire / Serial			2V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C		Surface Mount
Compare Datasheet DS1339U-33+T&R Maxim Integrated DS1339 Series 3.3V I2C / Serial Surface Mount Real Time Clock - uSOP-8 List Min: 3,000 Mult. of: 3,000 Quantity Increase Button Decrease Button	3,000: $2.17	12,000	6 Weeks	1822	Reel		DW:DM:M:Y	HH:MM:SS	I2C			2.97V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet DS1307Z+ Maxim Integrated DS1307 Series 5.5 V I2C / Serial Surface Mount Real Time Clock - SOIC-8 List Min: 1 Mult. of: 1 Quantity Increase Button Decrease Button	1: $2.62 200: $2.17 300: $2.14 500: $2.10	9,691	6 Weeks	1850	Tube	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	56B		4.5V to 5.5V	Commercial	0°C to 70°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet PCF2123TS/1,118 NXP PCF2123 Series 5.5 V Surface Mount SPI Real Time Clock/Calendar - TSSOP-14 List Min: 1 Mult. of: 1 Quantity Increase Button Decrease Button	1: $0.99 50: $0.92 100: $0.855 250: $0.795 500: $0.74	9,059	7 Weeks	1810	Cut Tape Available in Mini-Reel	TSSOP-14	DW:DM:M:Y/Binary	HH:MM:SS/Binary	3-Wire SPI			1.1V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet ISL1208IB8Z-TK Renesas ISL1208 Series 2.7 - 5.5 V 2 Byte Ram I2C® Real Time Clock/Calendar - SOIC-8 List Min: 1,000 Mult. of: 1,000 Quantity Increase Button Decrease Button	1,000: $1.41	8,000	6 Weeks	1920	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	2B		2.7V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet ISL1208IB8Z-TK Renesas ISL1208 Series 2.7 - 5.5 V 2 Byte Ram I2C® Real Time Clock/Calendar - SOIC-8 List Min: 1 Mult. of: 1 Quantity More Info Increase Button Decrease Button	1: $2.35 50: $2.18 100: $2.03 250: $1.89 500: $1.76	8,000	6 Weeks	1920	Cut Tape Available in Mini-Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	2B		2.7V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet PI6C10804WE Pericom Saronix-eCera 1:4 1.8 to 2.5 V 180 MHz SMT High Speed Low Noise Networking Clock Buffer-SOIC-8 List Min: 1 Mult. of: 1 Quantity Increase Button Decrease Button	1: $1.10 291: $0.705 485: $0.675 1,940: $0.605 2,910: $0.585	7,851	N/A	1901	Tube	SOIC-8											Surface Mount
Compare Datasheet M41T82RM6F STMicroelectronics M41T82 Series 2.7 to 5.5 V Surface Mount Serial I2C bus Real-Time Clock - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $1.59	7,500	10 Weeks	1909	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS:hh	I2C / 2-Wire / Serial		7b	2.7V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C		Surface Mount
Compare Datasheet PCF85363ATT/AJ NXP Tiny Real-Time Clock/calendar with 64 byte RAM List Min: 2,500 Mult. of: 2,500 Quantity More Info Increase Button Decrease Button	2,500: $0.545	7,500	7 Weeks	1927	Reel
Compare Datasheet PCF2123TS/1,118 NXP PCF2123 Series 5.5 V Surface Mount SPI Real Time Clock/Calendar - TSSOP-14 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $0.595	7,500	7 Weeks	1810	Reel	TSSOP-14	DW:DM:M:Y/Binary	HH:MM:SS/Binary	3-Wire SPI			1.1V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet DS1338Z-33+T&R Maxim Integrated DS1338 Series 5.5V I2C/Serial Surface Mount Real Time Clock - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity More Info Increase Button Decrease Button	2,500: $2.02	7,500	9 Weeks	1849	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	56B		3V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet M41T00SM6F STMicroelectronics M41T00S Series 5.5 V I2C / 2-Wire / Serial SMT Real Time Clock - SOIC-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $1.65	7,500	10 Weeks	1809	Reel	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C / 2-Wire / Serial		8b	2V to 5.5V	Industrial	-40°C to +85°C	-55°C to +125°C		Surface Mount
Compare Datasheet MCP79410-I/SN Microchip MCP79410 Series 5.5 V I2C™ Real-Time Clock/Calendar with EEPROM SRAM-SOIC-8 List Min: 1 Mult. of: 1 Quantity Increase Button Decrease Button	1: $0.995 300: $0.845 500: $0.835 1,500: $0.81 2,500: $0.795	6,305	5 Weeks	1827	Tube	SOIC-8	DW:DM:M:Y	HH:MM:SS	I2C	1kB	64b	1.8V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount
Compare Datasheet PCF2123BS/1,518 NXP PCF2123 Series 5.5 V 6.25 Mbit 3 Wire SPI Bus Real Time Clock/Calendar - HVQFN16 List Min: 6,000 Mult. of: 6,000 Quantity Increase Button Decrease Button	6,000: $0.535	6,000	7 Weeks	1828	Reel	HVQFN-16			3-Wire SPI			1.1V to 5.5V	Industrial				Surface Mount
Compare Datasheet M41T60Q6F STMicroelectronics M41T60 Series 1.3 to 4.4 V Serial I2C Real Time Clock SMT - QFN-16 (3x3) List Min: 3,000 Mult. of: 3,000 Quantity Increase Button Decrease Button	3,000: $0.99	6,000	20 Weeks	1919	Reel	QFN-16	DW:DM:M:Y/Binary	HH:MM:SS/Binary	I2C	8B	8b	1.3V to 4.4V	Industrial	-40°C to +85°C	-55°C to +125°C		Surface Mount
Compare Datasheet DS1302S+ Maxim Integrated DS1302 Series 5.5 V Surface Mount Trickle-Charge Timekeeping Chip - SOIC-8 List Min: 1 Mult. of: 1 Quantity Increase Button Decrease Button	1: $3.50 176: $2.05 264: $1.97 352: $1.91	5,319	6 Weeks	1804	Tube	SOIC-8	DW:DM:M:Y	HH:MM:SS	3-Wire	31B		2V to 5.5V	Commercial	0°C to 70°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet FSUSB43L10X ON Semiconductor Real Time Clock List Min: 5,000 Mult. of: 5,000 Quantity Increase Button Decrease Button	5,000: $0.72	5,000	N/A	1911	Reel
Compare Datasheet DS1306E+T&R Maxim Integrated DS1306 Series 5.5V Serial / 3-Wire / SPI Through Hole Real Time Clock - TSSOP-20 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $3.00	5,000	6 Weeks	1823	Reel	TSSOP-20	DW:DM:M:Y	HH:MM:SS	SPI	96B		2V to 5.5V	Commercial	0°C to 70°C	-55°C to +125°C	1	Surface Mount
Compare Datasheet FSA642UMX ON Semiconductor Real Time Clock List Min: 5,000 Mult. of: 5,000 Quantity Increase Button Decrease Button	5,000: $0.39	5,000	N/A	1911	Reel
Compare Datasheet PCA8565TS/1,118 NXP PCA8565 Series 5.5 V Serial (2-Wire, I2C) Real Time Clock/Calendar - TSSOP-8 List Min: 2,500 Mult. of: 2,500 Quantity Increase Button Decrease Button	2,500: $0.83	5,000	7 Weeks	1908	Reel	TSSOP-8	DW:DM:M:Y/Binary	HH:MM:SS/Binary	I2C			1.8V to 5.5V	Extended	-40°C to +125°C	-65°C to +150°C		Surface Mount
Compare Datasheet PCF85263ATL/AX NXP PCF85263A Series 5.5 V Tiny Real-Time Clock/Calendar - DFN2626-10 List Min: 4,000 Mult. of: 4,000 Quantity Increase Button Decrease Button	4,000: $0.455	4,000	7 Weeks	1914	Reel		DW:DM:M:Y/Binary	HH:MM:SS/Binary	I2C			0.9V to 5.5V	Industrial	-40°C to +85°C	-65°C to +150°C		Surface Mount