DS1338U-18

Obsolete

Analog Devices Inc./Maxim Integrated

IC RTC CLOCK/CALENDAR I2C 8UMAX

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DS1338U-18

Obsolete

Analog Devices Inc./Maxim Integrated

IC RTC CLOCK/CALENDAR I2C 8UMAX

Deep-Dive with AI

DocumentsDatasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	DS1338U-18

Current - Timekeeping (Max)	100 µA
Features	NVSRAM, Leap Year, Square Wave Output
Interface	I2C, 2-Wire Serial
Memory Size	56 B
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Supplier Device Package	8-uMAX/uSOP
Time Format	HH:MM:SS (12/24 hr)
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	1.71 V
Voltage - Supply, Battery [Max]	3.7 V
Voltage - Supply, Battery [Min]	1.3 V

DS1338 Series

Part	Features	Type	Memory Size	Voltage - Supply, Battery [Min]	Voltage - Supply, Battery [Max]	Package / Case [x]	Package / Case	Package / Case [y]	Time Format	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Timekeeping (Max) [Min]	Current - Timekeeping (Max) [Max]	Interface	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Package / Case [custom]	Package / Case	Current - Timekeeping (Max)
Analog Devices Inc./Maxim Integrated DS1338C-33#	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.295 in	16-SOIC	7.5 mm	HH:MM:SS (12/24 hr)	5.5 V	3 V	125 µA	200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	16-SOIC
Analog Devices Inc./Maxim Integrated DS1338Z-3	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.154 in	8-SOIC	3.9 mm	HH:MM:SS (12/24 hr)	5.5 V	2.7 V		200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-SOIC
Analog Devices Inc./Maxim Integrated DS1338U-33+T&R	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V		8-MSOP 8-TSSOP		HH:MM:SS (12/24 hr)	5.5 V	3 V	125 µA	200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-uMAX/uSOP	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated DS1338Z-18+	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.154 in	8-SOIC	3.9 mm	HH:MM:SS (12/24 hr)	5.5 V	1.71 V			2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-SOIC			100 µA
Analog Devices Inc./Maxim Integrated DS1338U-18	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V		8-MSOP 8-TSSOP		HH:MM:SS (12/24 hr)	5.5 V	1.71 V			2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-uMAX/uSOP	0.118 in	3 mm	100 µA
Analog Devices Inc./Maxim Integrated DS1338Z-3+	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.154 in	8-SOIC	3.9 mm	HH:MM:SS (12/24 hr)	5.5 V	2.7 V		200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-SOIC
Analog Devices Inc./Maxim Integrated DS1338Z-33+	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.154 in	8-SOIC	3.9 mm	HH:MM:SS (12/24 hr)	5.5 V	3 V	125 µA	200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-SOIC
Analog Devices Inc./Maxim Integrated DS1338U-33+	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V		8-MSOP 8-TSSOP		HH:MM:SS (12/24 hr)	5.5 V	3 V	125 µA	200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-uMAX/uSOP	0.118 in	3 mm
Analog Devices Inc./Maxim Integrated DS1338Z-3+T&R	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V	0.154 in	8-SOIC	3.9 mm	HH:MM:SS (12/24 hr)	5.5 V	2.7 V		200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-SOIC
Analog Devices Inc./Maxim Integrated DS1338U-3+T&R	Leap Year NVSRAM Square Wave Output	Clock/Calendar	56 B	1.3 V	3.7 V		8-MSOP 8-TSSOP		HH:MM:SS (12/24 hr)	5.5 V	2.7 V		200 µA	2-Wire Serial I2C	Surface Mount	85 °C	-40 °C	8-uMAX/uSOP	0.118 in	3 mm

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

DS1338 Series

Real Time Clock (RTC) IC Clock/Calendar 56B I2C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Documents

Technical documentation and resources