Real Time Clocks

: 476 Products Found

Filter Layout: LEFT

TOP

0 Filter(s) Selected

Products Found Please click the 'Apply Filters' button to update results

Keep applying filters or Show Results Show Results

Apply Filters

Filters

Clear All Filters

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

Open Filters

Real-Time Clock products offer a diverse range of real-time clock (RTC) solutions for networking and embedded applications. The primary function of RTC is to keep time and calendar data.

We offer Real Time Clock (RTC) functions including Alarm RTC, Binary Counter, Real Time Calendar Clock (RTCC), Elapsed Time Recorder and Real Time Event Recorder.

Use of a hardware RTC allows microcontrollers like the Raspberry Pi to be used without internet access and still provide services that use time stamps. For example, the DS1307 is a commonly available I2C based RTC module – so using the DS1307’s I2C protocol, which is supported by the Raspberry Pi, real time clock support can easily and cost-effectively be added.

Another popular RTC module, also with I2C support, is the DS3231. The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when mains power to the device is interrupted. Accuracy is ±2ppm from 0°C to +40°C, and ±3.5ppm from -40°C to +85°C.

Apart from I2C, other interface types include 2 wire, 3 wire, 4 wire, Motorola Serial Peripheral Interface (SPI), Bytewide, Parallel, Multiplexed, and Phantom Clock.

Operating temperatures range from -40°C minimum to +125°C maximum. Products are available to the AEC-Q100 Automotive Qualification Standard.

Compare Selected Compare (0)

Sort by

Best Match

Best Match Price: Low to High Price: High to Low Stock: Low to High Stock: High to Low

Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price (Incl GST)	Quantity	Date Format	Clock Format	Clock IC Type	Supply Voltage Min	Supply Voltage Max	Clock IC Case Style	No. of Pins	IC Interface Type	Operating Temperature Min	Operating Temperature Max	Product Range	Automotive Qualification Standard
						Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending	Sort Acending Sort Decending
DS3231MZ+TRL	2515487 Data Sheet + RoHS	Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 2.3 V to 5.5 V, NSOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2515487 2515487RL in Re-reel	1+ $14.21 ($16.34) 10+ $12.85 ($14.78) 25+ $12.25 ($14.09) 100+ $10.65 ($12.25) 250+ $10.16 ($11.68) 500+ $9.27 ($10.66) 2500+ $8.97 ($10.32) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
DS1302S+	2519293 Data Sheet + RoHS	RTC IC, Date Time Format (Date/Month/Year hh:mm:ss), Serial, 2 V to 5.5 V, SOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each	1+ $8.47 ($9.74) 10+ $7.61 ($8.75) 88+ $6.49 ($7.46) 176+ $6.23 ($7.16) 264+ $5.92 ($6.81) 528+ $5.31 ($6.11) 1056+ $4.80 ($5.52) 2552+ $4.71 ($5.42) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YY-MM-DD	HH:MM:SS	RTC	2V	5.5V	SOIC	8Pins	3 Wire, Serial	0°C	70°C	-	-
DS3231S#T&R	2798759 Data Sheet + RoHS	RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 2.3 V to 5.5 V supply, SOIC-16 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $16.16 ($18.58) 10+ $14.61 ($16.80) 25+ $13.93 ($16.02) 100+ $12.10 ($13.92) 250+ $11.55 ($13.28) 500+ $10.53 ($12.11) 1000+ $10.32 ($11.87) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.3V	5.5V	SOIC	16Pins	I2C	0°C	70°C	-	-
PCF8563T/5,518	2775929 Data Sheet + RoHS	Calendar, Clock IC, Format (YYYY:MM:WK:DD:hh:mm:ss/Binary), I2C, 1 V to 5.5 V supply, SOIC-8 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $1.93 ($2.22) 10+ $1.72 ($1.98) 25+ $1.64 ($1.89) 100+ $1.35 ($1.55) 250+ $1.26 ($1.45) 500+ $1.11 ($1.28) 1000+ $0.875 ($1.01) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-
DS1302Z+T&R	2515451 Data Sheet + RoHS	RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Serial, 2 V to 5.5 V, NSOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2515451 2515451RL in Re-reel	1+ $6.98 ($8.03) 10+ $6.27 ($7.21) 25+ $5.92 ($6.81) 100+ $5.13 ($5.90) 250+ $4.87 ($5.60) 500+ $4.37 ($5.03) 2500+ $3.95 ($4.54) 5000+ $3.87 ($4.45) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	NSOIC	8Pins	Serial	0°C	70°C	-	-

M48T08-100PC1	9756396 Data Sheet + RoHS	RTC, Timekeeper NVSRAM, Parallel, 4.75 V to 5.5 V, DIP-28 STMICROELECTRONICS You previously purchased this product. View in Order History	Each	1+ $31.54 ($36.27) 10+ $30.92 ($35.56) 100+ $30.63 ($35.22)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	5.5V	-	-	Parallel	0°C	70°C	-	-

PCF2127AT/2Y	2400449 Data Sheet + RoHS	Calendar, Clock IC, Format (YYYY:MM:WK:DD:hh:mm:ss/Binary), I2C, SPI, 1.8V to 4.2V supply, SOIC-20 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2400449 2400449RL in Re-reel	1+ $11.43 ($13.14) 10+ $10.29 ($11.83) 25+ $9.72 ($11.18) 100+ $8.43 ($9.69) 250+ $8.00 ($9.20) 500+ $7.17 ($8.25) 1000+ $6.83 ($7.85) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	-	-	20Pins	I2C, SPI	-40°C	85°C	-	-

DS3232S#T&R	2830851 Data Sheet + RoHS	RTC, Alarm, Date Time Format (Day/Date/Month/Year, HH:MM:SS), I2C, 2.3V to 5.5V Supply, SOIC-20 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $17.25 ($19.84) 10+ $15.59 ($17.93) 25+ $14.65 ($16.85) 100+ $12.87 ($14.80) 250+ $12.27 ($14.11) 500+ $11.19 ($12.87) 1000+ $10.58 ($12.17) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	SOIC	20Pins	I2C	0°C	70°C	-	-

DS3231MZ+TRL	2515487RL Data Sheet + RoHS	Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 2.3 V to 5.5 V, NSOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2515487RL 2515487 in Cut Tape	10+ $12.85 ($14.78) 25+ $12.25 ($14.09) 100+ $10.65 ($12.25) 250+ $10.16 ($11.68) 500+ $9.27 ($10.66) 2500+ $8.97 ($10.32) More Pricing...	Restricted Item Minimum order of 10 items Multiples of 1 only Please enter a valid quantity Add Min: 10 Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-

DS1302Z+T&R	2515451RL Data Sheet + RoHS	RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), Serial, 2 V to 5.5 V, NSOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2515451RL 2515451 in Cut Tape	100+ $5.13 ($5.90) 250+ $4.87 ($5.60) 500+ $4.37 ($5.03) 2500+ $3.95 ($4.54) 5000+ $3.87 ($4.45)	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2V	5.5V	NSOIC	8Pins	Serial	0°C	70°C	-	-

PCF2127AT/2Y	2400449RL Data Sheet + RoHS	Calendar, Clock IC, Format (YYYY:MM:WK:DD:hh:mm:ss/Binary), I2C, SPI, 1.8V to 4.2V supply, SOIC-20 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2400449RL 2400449 in Cut Tape	10+ $10.29 ($11.83) 25+ $9.72 ($11.18) 100+ $8.43 ($9.69) 250+ $8.00 ($9.20) 500+ $7.17 ($8.25) 1000+ $6.83 ($7.85) More Pricing...	Restricted Item Minimum order of 10 items Multiples of 1 only Please enter a valid quantity Add Min: 10 Mult: 1	-	-	-	-	-	-	20Pins	I2C, SPI	-40°C	85°C	-	-

M48T08-100PC1	975639602 Data Sheet + RoHS	RTC, Timekeeper NVSRAM, Parallel, 4.75 V to 5.5 V, DIP-28 STMICROELECTRONICS You previously purchased this product. View in Order History	Each	1+ $30.91 ($35.55)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	5.5V	-	-	Parallel	0°C	70°C	-	-

PCF2127AT/2Y	240044902 Data Sheet + RoHS	Calendar, Clock IC, Format (YYYY:MM:WK:DD:hh:mm:ss/Binary), I2C, SPI, 1.8V to 4.2V supply, SOIC-20 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $6.86 ($7.89)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	-	-	20Pins	I2C, SPI	-40°C	85°C	-	-

DS3231MZ+TRL	251548702 Data Sheet + RoHS	Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 2.3 V to 5.5 V, NSOIC-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $11.05 ($12.71)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.3V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-

MCP7940M-I/P	2098894 Data Sheet + RoHS	RTC IC, Date Time Format (Date/Month/Year hh:mm:ss), I2C, 1.8 V to 5.5 V, DIP-8 MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.37 ($1.58) 10+ $1.35 ($1.55) 100+ $1.32 ($1.52)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	DIP	8Pins	I2C	-40°C	85°C	-	AEC-Q100

MCP79402-I/SN	2361119 Data Sheet + RoHS	Alarm RTC IC, Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, SOIC-8 MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.94 ($2.23) 25+ $1.91 ($2.20) 250+ $1.87 ($2.15)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	-

MCP7940N-I/SN	2361122 Data Sheet + RoHS	Alarm RTC IC, Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, SOIC-8 MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.58 ($1.82) 25+ $1.56 ($1.79) 250+ $1.53 ($1.76)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100

MCP7940N-I/P	2361114 Data Sheet + RoHS	Alarm RTC IC, Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, DIP-8 MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.72 ($1.98) 25+ $1.70 ($1.96) 250+ $1.67 ($1.92)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	12Hr / 24Hr	Alarm RTC	1.8V	5.5V	DIP	8Pins	I2C	-40°C	85°C	-	AEC-Q100

MCP79410-I/SN	1823155 Data Sheet + RoHS	Battery Backed I2C Real Time Clock/Calendar with EEPROM and Unique ID in SOIC-8 Package MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.94 ($2.23) 25+ $1.91 ($2.20) 250+ $1.87 ($2.15)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	MCP79410 MCP79411 MCP79412	AEC-Q100

MCP7940M-I/SN	2098890 Data Sheet + RoHS	RTC IC, Date Time Format (Date/Month/Year hh:mm:ss), I2C, 1.8 V to 5.5 V, SOIC-8 MICROCHIP You previously purchased this product. View in Order History	Each	1+ $1.45 ($1.67) 10+ $1.43 ($1.64) 25+ $1.42 ($1.63) 100+ $1.38 ($1.59)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100

PCF8523T/1,118	2400452RL Data Sheet + RoHS	Calendar, Clock IC, Format (YYYY:MM:WK:DD:hh:mm:ss/Binary), I2C, 1.2 V to 5.5 V supply, SOIC-8 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2400452RL 2400452 in Cut Tape	100+ $2.37 ($2.73) 250+ $2.23 ($2.56) 500+ $1.95 ($2.24) 1000+ $1.75 ($2.01)	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	-	-	-	-	5.5V	-	8Pins	I2C	-40°C	85°C	-	-

DS1337+	2518743 Data Sheet + RoHS	RTC IC, Date Time Format (Day/Date/Month/Year ss:mm:hh), I2C, Serial, 1.8 V to 5.5 V, DIP-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each	1+ $6.71 ($7.72) 10+ $6.04 ($6.95) 50+ $5.70 ($6.56) 100+ $4.95 ($5.69) 250+ $4.69 ($5.39) 500+ $4.21 ($4.84) 2500+ $3.80 ($4.37) 5000+ $3.74 ($4.30) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year	ss:mm:hh	RTC	1.8V	5.5V	DIP	8Pins	I2C, Serial	-40°C	85°C	-	-

DS1687-5+	2515431 Data Sheet + RoHS	Alarm RTC IC, Day/Date/Month/Year/Century hh:mm:ss, Multiplexed, 4.5 V to 5.5 V, EDIP-24 ANALOG DEVICES You previously purchased this product. View in Order History	Each	1+ $28.96 ($33.30) 14+ $26.64 ($30.64) 28+ $25.92 ($29.81) 112+ $25.20 ($28.98) 252+ $23.97 ($27.57) 504+ $23.20 ($26.68) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	0°C	70°C	-	-

PCF85063TP/1Z	2427483 Data Sheet + RoHS	Calendar, Clock IC, Year/Month/Week/Date/Hr/Min/Sec Binary, I2C, 900 mV to 5.5 V, HWSON-8 NXP You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2427483 2427483RL in Re-reel	1+ $1.89 ($2.17) 10+ $1.69 ($1.94) 25+ $1.60 ($1.84) 100+ $1.32 ($1.52) 250+ $1.23 ($1.41) 500+ $1.08 ($1.24) 1000+ $0.901 ($1.04) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	900mV	5.5V	HWSON	8Pins	I2C	-40°C	85°C	-	-

DS1339U-33+T&R	2515464 Data Sheet + RoHS	Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss), I2C, 2.97 V to 5.5 V, µSOP-8 ANALOG DEVICES You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2515464 2515464RL in Re-reel	1+ $7.76 ($8.92) 10+ $6.97 ($8.02) 25+ $6.59 ($7.58) 100+ $5.71 ($6.57) 250+ $5.42 ($6.23) 500+ $4.86 ($5.59) 3000+ $4.39 ($5.05) 6000+ $4.31 ($4.96) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	5.5V	-	8Pins	I2C	-40°C	85°C	-	-