DS1391U-33+T&R

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Analog Devices Inc./Maxim Integrated

IC RTC CLK/CALENDAR SPI 10UMAX

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DS1391U-33+T&R

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Analog Devices Inc./Maxim Integrated

IC RTC CLK/CALENDAR SPI 10UMAX

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DocumentsDatasheet Tips for Writing Bulletproof Real-Time Clock Control Code

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	DS1391U-33+T&R	DS1391 Series

Current - Timekeeping (Max)	175 µA	100 - 175 µA
Features	Trickle-Charger, Leap Year, Alarm, Square Wave Output	Trickle-Charger, Leap Year, Alarm, Square Wave Output
Interface	SPI	SPI, 4-Wire Serial
Mounting Type	Surface Mount	Surface Mount
Operating Temperature [Max]	85 °C	85 °C
Operating Temperature [Min]	-40 °C	-40 °C
Package / Case	10-MSOP, 10-TFSOP	10-MSOP, 10-TFSOP
Package / Case [x]	3 mm	3 mm
Package / Case [x]	0.118 in	0.118 in
Supplier Device Package	10-uMAX/uSOP	10-uMAX/uSOP, 10-uMAX
Time Format	HH:MM:SS:hh (12/24 hr)	HH:MM:SS:hh (12/24 hr)
Type	Clock/Calendar	Clock/Calendar
Voltage - Supply [Max]	5.5 V	1.89 - 5.5 V
Voltage - Supply [Min]	2.97 V	1.71 - 2.97 V
Voltage - Supply, Battery [Max]	5.5 V	3.7 - 5.5 V
Voltage - Supply, Battery [Min]	1.3 V	1.3 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 7.06
		10	$ 4.80
		25	$ 4.22
		100	$ 3.56
		250	$ 3.25
		500	$ 3.05
		1000	$ 2.89
	Digi-Reel®	1	$ 7.06
		10	$ 4.80
		25	$ 4.22
		100	$ 3.56
		250	$ 3.25
		500	$ 3.05
		1000	$ 2.89
	Tape & Reel (TR)	3000	$ 2.73

DS1391 Series

IC RTC CLK/CALENDAR SPI 10UMAX

Part	Supplier Device Package	Voltage - Supply, Battery [Min]	Voltage - Supply, Battery [Max]	Time Format	Type	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Interface	Features	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [x]	Package / Case [x]	Current - Timekeeping (Max)
Analog Devices Inc./Maxim Integrated DS1391U-33+	10-uMAX/uSOP	1.3 V	5.5 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	5.5 V	2.97 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in	175 µA
Analog Devices Inc./Maxim Integrated DS1391U-3+T&R	10-uMAX/uSOP	1.3 V	3.7 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	3.3 V	2.7 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in
Analog Devices Inc./Maxim Integrated DS1391U-33+T&R	10-uMAX/uSOP	1.3 V	5.5 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	5.5 V	2.97 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in	175 µA
Analog Devices Inc./Maxim Integrated DS1391U-18+	10-uMAX/uSOP	1.3 V	3.7 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	1.89 V	1.71 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in	100 µA
Analog Devices Inc./Maxim Integrated DS1391U-18	10-uMAX	1.3 V	3.7 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	1.89 V	1.71 V	4-Wire Serial, SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in	100 µA
Analog Devices Inc./Maxim Integrated DS1391U-3+	10-uMAX/uSOP	1.3 V	3.7 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	3.3 V	2.7 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in
Analog Devices Inc./Maxim Integrated DS1391U-33	10-uMAX/uSOP	1.3 V	5.5 V	HH:MM:SS:hh (12/24 hr)	Clock/Calendar	Surface Mount	5.5 V	2.97 V	SPI	Alarm, Leap Year, Square Wave Output, Trickle-Charger	85 °C	-40 °C	10-MSOP, 10-TFSOP	3 mm	0.118 in	175 µA

Description

General part information

DS1391 Series

Real Time Clock (RTC) IC Clock/Calendar SPI 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Documents

Technical documentation and resources