Specification	DS1340U-18

Current - Timekeeping (Max)	100 µA
Date Format	YY-MM-DD-dd
Features	Leap Year, Trickle-Charger
Interface	I2C, 2-Wire Serial
Mounting Type	Surface Mount
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.118 in
Package Name	8-uMAX/uSOP, 8-TSSOP, 8-MSOP
Package Width	3 mm
Time Format	HH:MM:SS (24 hr)
Type	Clock/Calendar
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	1.71 V
Voltage - Supply, Battery (Maximum)	3.7 V
Voltage - Supply, Battery (Minimum)	1.3 V

DS1340 Series

Part	Mounting Type	Type	Current - Timekeeping (Max)	Voltage - Supply, Battery (Maximum)	Voltage - Supply, Battery (Minimum)	Interface	Date Format	Package Name	Features	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Length	Package Width	Operating Temperature (Min)	Operating Temperature (Max)	Time Format
Analog Devices Inc./Maxim Integrated DS1340Z-3	Surface Mount	Clock/Calendar	125 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-SOIC	Leap Year Trickle-Charger	5.5 V	2.7 V	0.154 in	3.9 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340U-33+	Surface Mount	Clock/Calendar	150 µA	5.5 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-TSSOP 8-MSOP 8-uMAX/uSOP	Leap Year Trickle-Charger	5.5 V	2.97 V	0.118 in	3 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340Z-33+	Surface Mount	Clock/Calendar	150 µA	5.5 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-SOIC	Leap Year Trickle-Charger	5.5 V	2.97 V	0.154 in	3.9 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340C-3#	Surface Mount	Clock/Calendar	125 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	16-SOIC	Leap Year Trickle-Charger	5.5 V	2.7 V	0.295 in	7.5 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340C-18#	Surface Mount	Clock/Calendar	100 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	16-SOIC	Leap Year Trickle-Charger	5.5 V	1.71 V	0.295 in	7.5 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340Z-3+T&R	Surface Mount	Clock/Calendar	125 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-SOIC	Leap Year Trickle-Charger	5.5 V	2.7 V	0.154 in	3.9 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340Z-18+	Surface Mount	Clock/Calendar	100 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-SOIC	Leap Year Trickle-Charger	5.5 V	1.71 V	0.154 in	3.9 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340U-3	Surface Mount	Clock/Calendar	125 µA	3.7 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-TSSOP 8-MSOP 8-uMAX/uSOP	Leap Year Trickle-Charger	5.5 V	2.7 V	0.118 in	3 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340Z-33/T&R	Surface Mount	Clock/Calendar	150 µA	5.5 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	8-SOIC	Leap Year Trickle-Charger	5.5 V	2.97 V	0.154 in	3.9 mm	-40 °C	85 °C	HH:MM:SS (24 hr)
Analog Devices Inc./Maxim Integrated DS1340C-33#	Surface Mount	Clock/Calendar	150 µA	5.5 V	1.3 V	2-Wire Serial I2C	YY-MM-DD-dd	16-SOIC	Leap Year Trickle-Charger	5.5 V	2.97 V	0.295 in	7.5 mm	-40 °C	85 °C	HH:MM:SS (24 hr)

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DS1340U-18 | Datasheet