Real Time Clocks

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

M41T11MH6F IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	4,361 In Stock	1 : $6.32000 Cut Tape (CT) 936 : $4.11726 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	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-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M41T94MH6F IC RTC CLK/CALENDAR SPI 28SOH STMicroelectronics	10,314 In Stock	1 : $7.14000 Cut Tape (CT) 936 : $4.64953 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	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-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M48T58Y-70MH1F IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	1,812 In Stock	1 : $15.26000 Cut Tape (CT) 936 : $10.53576 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets	28-SOH
M48T08Y-10MH1F IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	2,101 In Stock	1 : $22.22000 Cut Tape (CT) 936 : $15.88973 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT)	Active	Not Verified	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M48T35Y-70MH1F IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	1,175 In Stock	1 : $22.27000 Cut Tape (CT) 936 : $15.92166 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M48T37V-10MH1F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	657 In Stock	1 : $22.76000 Cut Tape (CT) 936 : $16.27527 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	-	2mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH
M48T35AV-10MH1F IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	190 In Stock	1 : $23.15000 Cut Tape (CT) 936 : $16.54956 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	-	2mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M48T201Y-70MH1F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	3,578 In Stock	1 : $16.42000 Cut Tape (CT) 936 : $11.33875 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH
M41ST85WMH6F IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	1,614 In Stock	1 : $7.51000 Cut Tape (CT) 936 : $5.55749 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 3.6V	2.5V ~ 3.5V	0.5mA @ 2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
M48T37Y-70MH1F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	269 In Stock	1 : $20.06000 Cut Tape (CT) 936 : $12.86112 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH
M48T201V-85MH1F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	621 In Stock	1 : $16.15000 Cut Tape (CT) 936 : $11.15276 Tape & Reel (TR)	Timekeeper®	Tape & Reel (TR) Cut Tape (CT)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	3V	2mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH

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Real Time Clocks

Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.