Real Time Clocks | Newark Electronics Mexico

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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MCP79410-I/SN	76R6660 Data Sheet RoHS Date/Lot Code	MICROCHIP Real-Time Clock IC DD:MM:YY I2C 1.8V to 5.5V -40°C to 85°C SOIC-8	Each	1+ $0.956 10+ $0.956 25+ $0.956 50+ $0.956 100+ $0.956	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	SOIC	8Pins	I2C	-40°C	85°C	-	AEC-Q100
MCP7940M-I/ST	93T1811 Data Sheet RoHS Date/Lot Code	MICROCHIP RTC I2C 64BYTES SRAM 8TSSOP	Each	1+ $0.753 10+ $0.727 25+ $0.700 50+ $0.679 100+ $0.658	Min: 1 / Mult: 1	DD:MM:YYYY	HH:MM:SS	RTC	1.8V	5.5V	TSSOP	8Pins	I2C	-40°C	85°C	-	AEC-Q100
PCA2129T/Q900/2,51	68X3129 Data Sheet RoHS Date/Lot Code	NXP REAL TIME CLOCK/CALENDAR BINARY SOIC16	Each (Supplied on Cut Tape) Cut Tape	1+ $4.540	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.8V	4.2V	SOIC	16Pins	I2C, SPI	-40°C	85°C	-	-
M48T35AV-10PC1	08N6563 Data Sheet RoHS Date/Lot Code	STMICROELECTRONICS NVRAM TIMEKEEPER 3V 256K CAPHAT	Each	1+ $31.950 5+ $29.800 10+ $27.650 36+ $25.500 60+ $23.800 More Pricing...	Min: 1 / Mult: 1	YY-MM-DD-dd	HH:MM:SS	Timekeeper	3V	3.6V	DIP	28Pins	Parallel	0°C	70°C	-	-
MCP7940N-I/P	12X8715 Data Sheet RoHS Date/Lot Code	MICROCHIP RTCC GP I2C 64B SRAM 8PDIP	Each	1+ $0.976 10+ $0.939 25+ $0.901 50+ $0.881 120+ $0.861	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
AB0805-T3	40Y2063 Data Sheet RoHS Date/Lot Code	ABRACON REAL TIME CLOCK I2C QFN-16	Each (Supplied on Cut Tape) Cut Tape Re-Reel Full Reel available	1+ $1.930 10+ $1.500 25+ $1.380 50+ $1.330 100+ $1.280 More Pricing...	Min: 5 / Mult: 5 Min: 100 / Mult: 5	Day; Date; Month; Year; Century	HH:MM:SS:hh	RTC	1.5V	3.6V	QFN	16Pins	I2C	-40°C	85°C	-	-
MCP79410-I/MS	20T6026 Data Sheet RoHS Date/Lot Code	MICROCHIP RTCC DD:MM:YYHH:MM:SS I2C MSOP	Each	1+ $1.150 10+ $1.140 25+ $1.070 50+ $1.060 100+ $1.040	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	1.8V	5.5V	MSOP	8Pins	I2C	-40°C	85°C	-	AEC-Q100
MCP79400-I/SN	12X8719 Data Sheet RoHS Date/Lot Code	MICROCHIP RTCC GP I2C 64B SRAM ID 8SOIC	Each	1+ $1.010 10+ $0.970 25+ $0.933 50+ $0.907 100+ $0.880	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	-	-
DS1340U-33+	73Y1233 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Real Time Clock/Calendar IC Trickle Charger I2C HH:MM:SS Day; Date; Month; Year 5.5 V µSOP-8	Each	1+ $6.420 10+ $4.920 25+ $4.630 50+ $4.320 100+ $4.140 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.97V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
DS1371U+	73Y1248 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Binary Counter IC Date Time Format (Binary) I2C 1.7 V to 5.5 V µSOP-8	Each	1+ $4.700 10+ $3.590 25+ $3.350 50+ $3.120 100+ $2.980 More Pricing...	Min: 1 / Mult: 1	Binary	Binary	Binary Counter	1.7V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
DS1388Z-3+	73Y1254 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Day/Date/Month/Year HH:MM:SS:hh RTC I2C 2.7 V to 3.3 V Supply NSOIC-8	Each	1+ $7.800 10+ $6.020 25+ $5.580 50+ $5.340 100+ $5.090 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	RTC	2.7V	3.3V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
DS1744WP-120+	38AC0929 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) Bytewide 3V to 3.6 V Supply PWRCP-34	Each	1+ $47.260 5+ $44.230 10+ $41.190 25+ $33.290 80+ $33.290 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	3.6V	PWRCP	34Pins	Bytewide	0°C	70°C	-	-
ISL12020MIRZ-T7A	82Y6684 Data Sheet RoHS Date/Lot Code	RENESAS REAL TIME CLOCK W/ SRAM 128B DFN-20	Each (Supplied on Cut Tape) Cut Tape	1+ $11.540 10+ $9.020 25+ $8.400 50+ $8.060 100+ $7.710	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	DFN	20Pins	I2C	-40°C	85°C	-	-
DS12885S+T&R	38AC0915 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Date Time Format (Day/Date/Month/Year HH:MM:SS) Bytewide 4.5V to 5.5V Supply SOIC-24	Each (Supplied on Cut Tape) Cut Tape	1+ $12.080 10+ $9.470 25+ $8.810 50+ $8.460 100+ $8.100 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	4.5V	5.5V	SOIC	24Pins	Bytewide	0°C	70°C	-	-
PCF2123BS/1,518	31AC6843 Data Sheet RoHS Date/Lot Code	NXP ALARM RTC -40 TO 85DEG C HVQFN-16	Each (Supplied on Cut Tape) Cut Tape	1+ $1.390 10+ $1.020 25+ $0.919 50+ $0.867	Min: 1 / Mult: 1	YYYY:MM:WK:DD:Hr:Min:Secs	Binary	Calendar, Clock	1.1V	5.5V	HVQFN	16Pins	I2C	-40°C	85°C	-	-
DS1340C-33#	14AC3759 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC W/ TRICKLE CHARGER SOIC-16	Each	1+ $9.900 10+ $7.710 25+ $6.870 92+ $6.660 138+ $6.450 More Pricing...	Min: 1 / Mult: 1	DD:MM:YY	HH:MM:SS	RTC	2.97V	5.5V	SOIC	16Pins	I2C	-40°C	85°C	-	-
DS1308U-33+	73Y1209 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) I2C 3 V to 5.5 V µSOP-8	Each	1+ $6.220 10+ $4.760 25+ $4.470 50+ $4.180 100+ $4.000 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	3V	5.5V	µSOP	8Pins	I2C	-40°C	85°C	-	-
DS1394U-33+	73Y1267 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) SPI 2.97 V to 5.5 V µSOP-10	Each	1+ $6.550 10+ $5.030 25+ $4.730 50+ $4.420 100+ $4.230 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	Alarm RTC	2.97V	5.5V	µSOP	10Pins	SPI	-40°C	85°C	-	-
DS1338C-3#	38AC0921 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC I2C SERIAL 5.5V SOIC-16	Each	1+ $9.900 10+ $7.710 25+ $6.870 92+ $6.660 138+ $6.450 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	RTC	2.7V	5.5V	SOIC	16Pins	I2C	-40°C	85°C	-	-
DS1744W-120+	73Y1370 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC Timekeeper NVSRAM Bytewide 2.97 V to 3.63 V EDIP-28	Each	1+ $44.000 5+ $40.500 10+ $36.980 36+ $33.470 60+ $33.320 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year; Century	HH:MM:SS	RTC	2.97V	3.63V	EDIP	28Pins	Bytewide	0°C	70°C	-	-
DS17887-5+	73Y1388 Data Sheet RoHS Date/Lot Code	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+ $32.470 5+ $30.220 10+ $27.990 25+ $25.740 50+ $24.660 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	0°C	70°C	-	-
DS1388Z-5+	73Y1258 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss:hh) I2C 4.5 V to 5.5 V NSOIC-8	Each	1+ $8.020 10+ $5.750 25+ $5.580 50+ $5.410 100+ $5.240 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS:hh	RTC	4.5V	5.5V	NSOIC	8Pins	I2C	-40°C	85°C	-	-
DS17487-5+	73Y1384 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Format (Day/Date/Month/Year hh:mm:ss) Multiplexed 4.5 V to 5.5 V supply EDIP-24	Each	1+ $29.930 5+ $26.760 10+ $23.580 28+ $23.060 56+ $22.540 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	4.5V	5.5V	EDIP	24Pins	Multiplexed	0°C	70°C	-	-
DS1344E-33+	73Y1245 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Date Time Format (Day/Date/Month/Year hh:mm:ss) SPI 3 V to 5.5 V TSSOP-20	Each	1+ $7.370 10+ $5.690 25+ $5.410 50+ $5.150 148+ $4.880 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	3V	5.5V	TSSOP	20Pins	SPI	-40°C	85°C	-	-
DS12CR887-33+	73Y1077 Data Sheet RoHS Date/Lot Code	ANALOG DEVICES Alarm RTC IC Day/Date/Month/Year hh:mm:ss Multiplexed 2.97 V to 3.63 V EDIP-24	Each	1+ $18.540 10+ $14.360 28+ $14.020 56+ $13.680 112+ $13.170 More Pricing...	Min: 1 / Mult: 1	Day; Date; Month; Year	HH:MM:SS	Alarm RTC	2.97V	3.63V	EDIP	24Pins	Multiplexed	-40°C	85°C	-	-