Real Time Clocks

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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
EM3028C7B+ IC RTC CLOCK/CALENDAR I2C SMD EM Microelectronic	2,084	-	RFQ	Datasheet	-	8-SMD	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, Trickle-Charger	43B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	1.1V, 1.2V, 2V ~ 5.5V	1.1V ~ 5.5V	0.4µA @ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	SMD
1339-31DCGI8 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	2,545	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	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	3.3V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RX-8035SA:AC0 PURE SN IC RTC TIME EVENT REC I2C 14SOP EPSON	1,475	-	RFQ	Datasheet	RX-8035SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
DS1306E/T&R IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	2,739	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	20-TSSOP
DS1305E/T&R IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	4,271	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	-	-	20-TSSOP
RV-8564-C3-32.768KHZ-10PPM-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	4,141	-	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.35µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)
PT7C4302WEX IC RTC CLK/CALENDAR SER 8SOIC Diodes Incorporated	4,831	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	1.2V ~ 5.5V	1.5V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RX-8035SA:AA0:PURE SN IC RTC TIME EVENT REC I2C 14SOP EPSON	2,890	-	RFQ	Datasheet	RX-8035SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
ISL1219IUZ-T IC RTC EVENT REC I2C 10MSOP Renesas Electronics Corporation	1,027	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Time Event Recorder	Alarm, Leap Year, SRAM	2B	HH:MM:SS (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	-	-	10-MSOP
PT7C4307WEX IC RTC CLK/CALENDAR I2C 8SOIC Diodes Incorporated	3,468	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2V ~ 3.5V	1.5mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
ISL12026AIBZ-T IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,260	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RX-8803SAUC0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	2,895	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX-8803SA UB0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	1,694	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX-4803SAUB0 PURE SN IC RTC CLK/CALENDAR SPI 12VSOJ EPSON	2,788	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
RX-8025SAAA0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	3,858	-	RFQ	Datasheet	RX-8025SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	-	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD-dd	I2C	1.7V ~ 5.5V	-	1.2µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RX-8025SAAC0 PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	1,927	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
DS1307ZN IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	1,061	-	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	4.5V ~ 5.5V	2V ~ 3.5V	200µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1302N IC RTC CLK/CALENDAR SER 8DIP Analog Devices Inc./Maxim Integrated	2,523	-	RFQ	Datasheet	-	8-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	-40°C ~ 85°C	Through Hole	-	-	8-PDIP
DS1302SN IC RTC CLK/CALENDAR SER 8SOIC Analog Devices Inc./Maxim Integrated	4,435	-	RFQ	Datasheet	-	8-SOIC (0.209", 5.30mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1307N IC RTC CLOCK/CALENDAR I2C 8DIP Analog Devices Inc./Maxim Integrated	1,604	-	RFQ	Datasheet	-	8-DIP (0.300", 7.62mm)	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	4.5V ~ 5.5V	2V ~ 3.5V	200µA @ 5V	-40°C ~ 85°C	Through Hole	-	-	8-PDIP

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