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
DS1556-70+	1+ $47.480 10+ $45.180 25+ $41.700 50+ $39.610	PDF RFQ	993 In-stock	Maxim Integrated	Real Time Clock 1M NV RAM Timekeeper	Through Hole	EDIP-32	0 C	+ 70 C	Tube	5.5 V	4.5 V		Parallel	DW:DM:M:Y	HH:MM:SS	128 kB
DS1248Y-70+	1+ $47.270 10+ $44.980 25+ $41.530 50+ $39.450	PDF RFQ	289 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	Through Hole	EDIP-32	0 C	+ 70 C	Tube	5.5 V	4.5 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1746-70+	1+ $41.640 10+ $39.550 25+ $36.510 50+ $34.680	PDF RFQ	191 In-stock	Maxim Integrated	Real Time Clock Timekeeping NV RAM	Through Hole	EDIP-32	0 C	+ 70 C	Tube	5.5 V	4.5 V		Parallel	DW:DM:M:Y	HH:MM:SS	128 kB
DS1248YP-70+	1+ $43.890 10+ $41.760 25+ $38.670 50+ $36.810	PDF RFQ	144 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	SMD/SMT	PowerCap-34	0 C	+ 70 C	Tube	5.5 V	4.5 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1746-70IND+	1+ $44.860 10+ $42.700 25+ $39.530 50+ $37.630	PDF RFQ	32 In-stock	Maxim Integrated	Real Time Clock Timekeeping NV RAM	Through Hole	EDIP-32	- 40 C	+ 85 C	Tube	5.5 V	4.5 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS	128 kB
DS1248Y-70IND+	1+ $51.940 10+ $49.430 25+ $45.640 50+ $43.360	PDF RFQ	10 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	Through Hole	EDIP-32	- 40 C	+ 85 C	Tube	5.5 V	4.5 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1248W-120IND+	1+ $50.340 10+ $47.900 25+ $44.340 50+ $42.200	PDF RFQ	3 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	Through Hole	EDIP-32	- 40 C	+ 85 C	Tube	3.63 V	2.97 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1746WP-120+	1+ $38.920 10+ $36.980 25+ $34.130 50+ $32.430	PDF RFQ	39 In-stock	Maxim Integrated	Real Time Clock Timekeeping NV RAM	SMD/SMT	PowerCap Module-34	0 C	+ 70 C	Tube	3.63 V	2.97 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS	128 kB
DS1248W-120+	1+ $45.760 10+ $43.540 25+ $40.320 50+ $38.370	PDF RFQ	22 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	Through Hole	EDIP-32	0 C	+ 70 C	Tube	3.63 V	2.97 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1248WP-120+	1+ $40.770 10+ $36.700 25+ $32.190 100+ $27.670	PDF RFQ	31 In-stock	Maxim Integrated	Real Time Clock 1024k NV SRAM w/Phantom Clock	SMD/SMT	PowerCap-34	0 C	+ 70 C	Tube	3.63 V	2.97 V	Backup Switching	Parallel	DW:DM:M:Y	HH:MM:SS:hh	128 kB
DS1556WP-120+	40+ $36.100 80+ $34.370 120+ $31.200 280+ $29.720	PDF RFQ	1,183 In-stock	Maxim Integrated	Real Time Clock 1M NV RAM Timekeeper	SMD/SMT	PowerCap Module-34	0 C	+ 70 C	Tube	3.63 V	2.97 V		Parallel	DW:DM:M:Y	HH:MM:SS	128 kB