Specification	DS1302SN+

Current - Timekeeping (Max) [Max]	1 µA
Current - Timekeeping (Max) [Min]	0.3 µA
Features	Trickle-Charger, Leap Year, NVSRAM
Interface	3-Wire Serial
Memory Size	31 B
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-SOIC
Package / Case [x]	0.209 "
Package / Case [y]	5.3 mm
Supplier Device Package	8-SOIC
Time Format	HH:MM:SS (12/24 hr)
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V
Voltage - Supply, Battery [Max]	5.5 V
Voltage - Supply, Battery [Min]	2 V

DS1302 Series

Part	Type	Time Format	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Interface	Features	Current - Timekeeping (Max) [Max]	Current - Timekeeping (Max) [Min]	Voltage - Supply, Battery [Max]	Voltage - Supply, Battery [Min]	Memory Size	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
Analog Devices Inc./Maxim Integrated DS1302Z+T&R	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated DS1302SN-16/T&R	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	85 °C	-40 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	16-SOIC	5.5 V	2 V	16-SOIC	7.5 mm	0.295 in
Analog Devices Inc./Maxim Integrated DS1302+	Clock/Calendar	HH:MM:SS (12/24 hr)	Through Hole	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-PDIP	5.5 V	2 V	8-DIP			0.3 in	7.62 mm
Analog Devices Inc./Maxim Integrated DS1302S/T&R	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	5.3 mm	0.209 "
Analog Devices Inc./Maxim Integrated DS1302Z/T&R	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated DS1302Z+	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated DS1302S-16	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	70 °C	0 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	16-SOIC	5.5 V	2 V	16-SOIC	7.5 mm	0.295 in
Analog Devices Inc./Maxim Integrated DS1302SN+	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	85 °C	-40 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	5.3 mm	0.209 "
Analog Devices Inc./Maxim Integrated DS1302SN-16	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	85 °C	-40 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	16-SOIC	5.5 V	2 V	16-SOIC	7.5 mm	0.295 in
Analog Devices Inc./Maxim Integrated DS1302ZN	Clock/Calendar	HH:MM:SS (12/24 hr)	Surface Mount	85 °C	-40 °C	3-Wire Serial	Leap Year NVSRAM Trickle-Charger	1 µA	0.3 µA	5.5 V	2 V	31 B	8-SOIC	5.5 V	2 V	8-SOIC	3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 7.81
		10	$ 5.34
		25	$ 4.71
		100	$ 3.99
		250	$ 3.65
		500	$ 3.44
		1000	$ 3.26
		2500	$ 3.11

Description

General part information

DS1302 Series

Real Time Clock (RTC) IC Clock/Calendar 31B 3-Wire Serial 8-SOIC (0.209", 5.30mm Width)

Documents

Technical documentation and resources