Real Time Clocks | element14 New Zealand

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.

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			Price For		Quantity

DS1338Z-3+	2515349 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.7 V to 5.5 V NSOIC-8	Each	1+ $9.640 ($11.086) 10+ $7.380 ($8.487) 25+ $6.820 ($7.843) 100+ $6.210 ($7.1415) 300+ $5.910 ($6.7965) More Pricing...	Total:$9.64 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	2.7V	5.5V	NSOIC	NSOIC	I2C	8Pins	-	-	-40°C	85°C	-
PCF2129AT/2,518	2400450 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ $9.960 ($11.454) 10+ $7.720 ($8.878) 25+ $7.130 ($8.1995) 50+ $6.820 ($7.843) 100+ $6.500 ($7.475) More Pricing...	Total:$9.96 Min: 1 / Mult: 1	I2C, SPI	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	4.2V	SOIC	SOIC	I2C, SPI	20Pins	-	-	-40°C	85°C	-
DS12CR887-5+	2515428 Data Sheet RoHS	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) Multiplexed 4.5 V to 5.5 V EDIP-24	Each	1+ $32.860 ($37.789) 14+ $25.450 ($29.2675) 28+ $24.250 ($27.8875) 112+ $22.460 ($25.829) 252+ $21.690 ($24.9435) More Pricing...	Total:$32.86 Min: 1 / Mult: 1	Multiplexed	HH:MM:SS	Day; Date; Month; Year	Alarm RTC	HH:MM:SS	4.5V	5.5V	EDIP	EDIP	Multiplexed	24Pins	-	-	-40°C	85°C	-
DS1340Z-18+	2515350 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 1.71 V to 5.5 V NSOIC-8	Each	1+ $10.350 ($11.9025) 10+ $7.960 ($9.154) 25+ $7.360 ($8.464) 100+ $6.700 ($7.705) 300+ $6.420 ($7.383) More Pricing...	Total:$10.35 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	1.71V	5.5V	NSOIC	NSOIC	I2C	8Pins	-	-	-40°C	85°C	-
DS1302+	2518645 Data Sheet RoHS	ANALOG DEVICES Timekeeper IC Date Time Format (Day/Date/Month/Year hh:mm:ss) 3 Wire Serial 2 V to 5.5 V DIP-8	Each	1+ $10.600 ($12.190) 10+ $8.110 ($9.3265) 50+ $7.110 ($8.1765) 100+ $6.800 ($7.820) 250+ $6.470 ($7.4405) More Pricing...	Total:$10.60 Min: 1 / Mult: 1	3 Wire, Serial	HH:MM:SS	Day; Date; Month; Year	Timekeeper	HH:MM:SS	2V	5.5V	DIP	DIP	3 Wire, Serial	8Pins	-	-	0°C	70°C	-
DS1682S+	2519150 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Binary) I2C 2.5 V to 5.5 V SOIC-8	Each	1+ $15.820 ($18.193) 10+ $12.280 ($14.122) 25+ $11.400 ($13.110) 100+ $10.420 ($11.983) 300+ $9.880 ($11.362) More Pricing...	Total:$15.82 Min: 1 / Mult: 1	I2C	Binary	Binary	RTC	Binary	2.5V	5.5V	SOIC	SOIC	I2C	8Pins	-	-	-40°C	85°C	-
PCA8565TS/1,118	2400446 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 1.8 V to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ $3.860 ($4.439) 10+ $2.850 ($3.2775) 50+ $2.600 ($2.990) 100+ $2.320 ($2.668) 250+ $2.200 ($2.530) More Pricing...	Total:$3.86 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1.8V	5.5V	TSSOP	TSSOP	I2C	8Pins	-	-	-40°C	125°C	-
DS1244Y-70+	2515440 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) Parallel 4.5 V to 5.5 V EDIP-28	Each	1+ $84.770 ($97.4855) 12+ $77.810 ($89.4815) 36+ $74.780 ($85.997) 108+ $71.820 ($82.593) 252+ $69.590 ($80.0285)	Total:$84.77 Min: 1 / Mult: 1	Parallel	HH:MM:SS:hh	Day; Date; Month; Year	RTC	HH:MM:SS:hh	4.5V	5.5V	EDIP	EDIP	Parallel	28Pins	-	-	0°C	70°C	-
DS1372U+	2515387 Data Sheet RoHS	ANALOG DEVICES Binary Counter IC Date Time Format (Binary) I2C 2.4 V to 5.5 V µSOP-8	Each	1+ $8.590 ($9.8785) 10+ $6.530 ($7.5095) 50+ $5.720 ($6.578) 100+ $5.450 ($6.2675) 250+ $5.180 ($5.957) More Pricing...	Total:$8.59 Min: 1 / Mult: 1	I2C	Binary	Binary	Binary Counter	Binary	2.4V	5.5V	µSOP	µSOP	I2C	8Pins	-	-	-40°C	85°C	-
PCF8563TS/4,118	2400454 Data Sheet RoHS	NXP Real Time Clock/Calendar IC Alarm I2C HH:MM:SS Day; Date; Month; Year 1 V to 5.5 V TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ $3.010 ($3.4615) 10+ $2.210 ($2.5415) 50+ $2.010 ($2.3115) 100+ $1.820 ($2.093) 250+ $1.810 ($2.0815) More Pricing...	Total:$3.01 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	1V	5.5V	TSSOP	TSSOP	I2C	8Pins	-	-	-40°C	85°C	-
DS1307Z+	2909754 Data Sheet RoHS	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 4.5V to 5.5V Supply NSOIC-8	Each	1+ $10.100 ($11.615) 10+ $7.730 ($8.8895) 25+ $7.130 ($8.1995) 100+ $6.490 ($7.4635) 300+ $6.110 ($7.0265) More Pricing...	Total:$10.10 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	4.5V	5.5V	SOIC	SOIC	I2C	8Pins	-	-	0°C	70°C	-
DS3232SN#T&R	2798761 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 2.3 V to 5.5 V supply SOIC-20	Each (Supplied on Cut Tape) Cut Tape	1+ $23.080 ($26.542) 10+ $18.140 ($20.861) 25+ $16.910 ($19.4465) 100+ $15.550 ($17.8825) 250+ $14.900 ($17.135) More Pricing...	Total:$23.08 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	2.3V	5.5V	SOIC	SOIC	I2C	20Pins	-	-	-40°C	85°C	-
PCF85363ATT/AJ	2775939 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ $2.500 ($2.875) 10+ $1.820 ($2.093) 50+ $1.640 ($1.886) 100+ $1.450 ($1.6675) 250+ $1.370 ($1.5755) More Pricing...	Total:$2.50 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-	-	-40°C	85°C	-
MCP79411-I/MS	2774924 Data Sheet RoHS	MICROCHIP Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V supply MSOP-8	Each	1+ $2.270 ($2.6105) 25+ $2.070 ($2.3805) 100+ $1.980 ($2.277)	Total:$2.27 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	Alarm RTC	HH:MM:SS	1.8V	5.5V	MSOP	MSOP	I2C	8Pins	-	-	-40°C	85°C	-
M41T80M6F	2806830 Data Sheet RoHS	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS:hh) I2C 2V to 5.5V Supply SOIC-8	Each	1+ $8.860 ($10.189) 10+ $6.210 ($7.1415) 50+ $5.910 ($6.7965) 100+ $5.610 ($6.4515) 250+ $5.350 ($6.1525) More Pricing...	Total:$8.86 Min: 1 / Mult: 1	I2C	HH:MM:SS:hh	Day; Date; Month; Year; Century	Alarm RTC	HH:MM:SS:hh	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-	-40°C	85°C	-
MCP7940NT-I/SN	2857529 Data Sheet RoHS	MICROCHIP RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C 1.8V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $1.620 ($1.863) 25+ $1.500 ($1.725) 100+ $1.480 ($1.702) 3300+ $1.470 ($1.6905)	Total:$1.62 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	1.8V	5.5V	SOIC	SOIC	I2C	8Pins	-	-	-40°C	85°C	-
PCF85263ATT/AJ	2775936 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply TSSOP-8	Each (Supplied on Cut Tape) Cut Tape	1+ $2.120 ($2.438) 10+ $1.550 ($1.7825) 50+ $1.410 ($1.6215) 100+ $1.270 ($1.4605) 250+ $1.170 ($1.3455) More Pricing...	Total:$2.12 Min: 1 / Mult: 1	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	TSSOP	TSSOP	I2C	8Pins	-	-	-40°C	85°C	-
PCF85263ATL/AX	2775935 Data Sheet RoHS	NXP Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C 900 mV to 5.5 V supply DFN2626-10	Each (Supplied on Cut Tape) Cut Tape	5+ $1.980 ($2.277) 50+ $1.250 ($1.4375) 250+ $1.080 ($1.242) 1000+ $0.999 ($1.1488) 2000+ $0.981 ($1.1282)	Total:$9.90 Min: 5 / Mult: 5	I2C	Binary	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	Binary	900mV	5.5V	DFN2626	DFN2626	I2C	10Pins	-	-	-40°C	85°C	-
DS1339C-33#	2729119 Data Sheet RoHS	ANALOG DEVICES RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 2.97 V to 5.5 V supply SOIC-16	Each	1+ $18.930 ($21.7695) 10+ $14.790 ($17.0085) 46+ $13.190 ($15.1685) 138+ $12.410 ($14.2715) 276+ $12.020 ($13.823) More Pricing...	Total:$18.93 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	2.97V	5.5V	SOIC	SOIC	I2C	16Pins	-	-	-40°C	85°C	-
DS1307ZN+	2910068 Data Sheet RoHS	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) I2C Serial 4.5V to 5.5V Supply SOIC-8	Each	1+ $11.280 ($12.972) 10+ $8.650 ($9.9475) 25+ $7.990 ($9.1885) 100+ $7.280 ($8.372) 300+ $6.870 ($7.9005) More Pricing...	Total:$11.28 Min: 1 / Mult: 1	I2C, Serial	HH:MM:SS	Day; Date; Month; Year	RTC	HH:MM:SS	4.5V	5.5V	SOIC	SOIC	I2C, Serial	8Pins	-	-	-40°C	85°C	-
M41T0M6F	2806827 Data Sheet RoHS	STMICROELECTRONICS RTC Date Time Format (Day/Date/Month/Year/Century HH:MM:SS) I2C 2V to 5.5V Supply SOIC-8	Each (Supplied on Cut Tape) Cut Tape	1+ $6.820 ($7.843) 10+ $4.730 ($5.4395) 50+ $4.510 ($5.1865) 100+ $4.280 ($4.922) 250+ $4.040 ($4.646) More Pricing...	Total:$6.82 Min: 1 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year; Century	RTC	HH:MM:SS	2V	5.5V	SOIC	SOIC	I2C	8Pins	-	-	-40°C	85°C	-
MCP79412-I/SN	2103565 Data Sheet RoHS	MICROCHIP Calendar Clock IC Year/Month/Week/Date/Hr/Min/Sec hh:mm:ss I2C 1.8 V to 5.5 V SOIC-8	Each	1+ $3.130 ($3.5995) 25+ $2.740 ($3.151) 100+ $2.270 ($2.6105)	Total:$3.13 Min: 1 / Mult: 1	I2C	HH:MM:SS	YYYY:MM:WK:DD:Hr:Min:Secs	Calendar, Clock	HH:MM:SS	1.8V	5.5V	SOIC	SOIC	I2C	8Pins	-	AEC-Q100	-40°C	85°C	AEC-Q100
MCP79410-I/ST	1823156 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C Serial 1.8 V to 5.5 V TSSOP-8	Each	1+ $2.070 ($2.3805) 25+ $1.940 ($2.231) 100+ $1.860 ($2.139)	Total:$2.07 Min: 1 / Mult: 1	I2C, Serial	-	-	RTC	-	1.8V	5.5V	TSSOP	TSSOP	I2C, Serial	8Pins	-	AEC-Q100	-40°C	85°C	AEC-Q100
MCP7940M-I/MS	2098889 Data Sheet RoHS	MICROCHIP RTC IC Date Time Format (Date/Month/Year hh:mm:ss) I2C 1.8 V to 5.5 V MSOP-8	Each	1+ $1.370 ($1.5755) 25+ $1.280 ($1.472) 100+ $1.200 ($1.380)	Total:$1.37 Min: 1 / Mult: 1	I2C	HH:MM:SS	DD:MM:YYYY	RTC	HH:MM:SS	1.8V	5.5V	MSOP	MSOP	I2C	8Pins	-	AEC-Q100	-40°C	85°C	AEC-Q100
DS3231M+TRL	2515485RL Data Sheet RoHS	ANALOG DEVICES Real Time Clock IC Alarm I2C HH:MM:SS Day; Date; Month; Year 2.3 V to 5.5 V WSOIC-16	Each (Supplied on Cut Tape) Re-Reel Packaging Options	10+ $16.260 ($18.699) 25+ $15.130 ($17.3995) 100+ $13.890 ($15.9735) 250+ $13.310 ($15.3065) 500+ $12.950 ($14.8925)	Total:$162.60 Min: 10 / Mult: 1	I2C	HH:MM:SS	Day; Date; Month; Year	Alarm RTC	HH:MM:SS	2.3V	5.5V	WSOIC	WSOIC	I2C	16Pins	-	-	-40°C	85°C	-