PART NO.	PRICE		STOCK	MANUFACTURE	DESCRIPTION	Mounting Style	Package / Case	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	Supply Voltage - Max	Supply Voltage - Min	Battery Backup Switching	RTC Bus Interface	Date Format	Time Format	RTC Memory Size
DS1388Z-33+	1+ $4.660 10+ $4.430 25+ $4.090 50+ $3.890	PDF RFQ	3,631 In-stock	Maxim Integrated	Real Time Clock I2C RTC/Supervisor w/Trickle Charger	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	3.63 V	2.97 V	Backup Switching	Serial, I2C	YY-MM-DD	HH:MM:SS:hh	512 B
DS1340Z-33+	1+ $3.370 10+ $3.200 25+ $2.960 50+ $2.810	PDF RFQ	1,309 In-stock	Maxim Integrated	Real Time Clock I2C RTC w/Trickle Charger	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	2.97 V	Backup Switching	Serial, I2C	YY-MM-DD	HH:MM:SS
DS1302Z+	1+ $3.260 10+ $2.960 25+ $2.850 50+ $2.590	PDF RFQ	12,290 In-stock	Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	2 V	Backup Switching	Serial, 3-Wire	YY-MM-DD	HH:MM:SS	31 B
DS1337S+	1+ $2.610 10+ $2.480 25+ $2.290 50+ $2.180	PDF RFQ	1,765 In-stock	Maxim Integrated	Real Time Clock I2C Serial RTC	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	1.8 V		Serial, I2C	YY-MM-DD	HH:MM:SS
DS1307ZN+	1+ $3.710 10+ $3.520 25+ $3.250 50+ $3.090	PDF RFQ	926 In-stock	Maxim Integrated	Real Time Clock 64x8 Serial I2C RTC	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	4.5 V		Serial, I2C	YY-MM-DD	HH:MM:SS	56 B
DS1302ZN+	1+ $3.590 10+ $3.410 25+ $3.140 50+ $2.980	PDF RFQ	12,270 In-stock	Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	2 V	Backup Switching	Serial, 3-Wire	YY-MM-DD	HH:MM:SS	31 B
DS1338Z-3+	1+ $3.350 10+ $3.040 25+ $2.940 50+ $2.670	PDF RFQ	698 In-stock	Maxim Integrated	Real Time Clock I2C Serial RTC w/56 Byte NV RAM	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	3.3 V	2.7 V		Serial, I2C	YY-MM-DD	HH:MM:SS	56 B
DS1302SN+	1+ $3.710 10+ $3.520 25+ $3.250 50+ $3.090	PDF RFQ	360 In-stock	Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	2 V	Backup Switching	Serial, 3-Wire	YY-MM-DD	HH:MM:SS	31 B
DS1672S-3+	1+ $2.660 10+ $2.530 25+ $2.340 50+ $2.230	PDF RFQ	350 In-stock	Maxim Integrated	Real Time Clock I2C 32-Bit Binary Counter RTC	SMD/SMT	SOIC-8	- 40 C	+ 85 C	Tube	5.5 V	2.7 V	Backup Switching	Serial, I2C	YY-MM-DD	HH:MM:SS