DS1374U-33

Obsolete

Analog Devices Inc./Maxim Integrated

IC RTC BINARY COUNTER I2C 10UMAX

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DS1374U-33

Obsolete

Analog Devices Inc./Maxim Integrated

IC RTC BINARY COUNTER I2C 10UMAX

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Description Specifications Series Pricing CAD Documents

Description

General part information

DS1374 Series

The DS1374 is a 32-bit binary counter designed to continuously count time in seconds. An additional counter generates a periodic alarm or serves as a watchdog timer. If disabled, this counter can be used as 3 bytes of nonvolatile (NV) RAM. Separate output pins are provided for an interrupt and a square wave at one of four selectable frequencies. A precision temperature-compensated reference and comparator circuit monitor the status of VCCto detect power failures, provide a reset output, and automatically switch to the backup supply when necessary.Additionally, the reset pin is monitored as a pushbutton input for externally generating a reset. The device is programmed serially through an I²C serial interface.ApplicationsMedical EquipmentPoint-of-Sale EquipmentPortable InstrumentationTelecommunications

Technical Specifications

Parameters and characteristics for this part

Specification	DS1374U-33

Current - Timekeeping (Max)	175 µA
Date Format	Binary
Features	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer
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	10-uMAX/uSOP, 10-TFSOP, 10-MSOP
Package Width	3 mm
Time Format	Binary
Type	Binary Counter
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2.97 V
Voltage - Supply, Battery (Maximum)	5.5 V
Voltage - Supply, Battery (Minimum)	1.3 V

DS1374 Series

I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

Part	Time Format	Operating Temperature (Min)	Operating Temperature (Max)	Features	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Package Length	Package Name	Package Width	Type	Voltage - Supply, Battery (Maximum)	Voltage - Supply, Battery (Minimum)	Date Format	Current - Timekeeping (Max)	Mounting Type	Interface	Memory Size
Analog Devices Inc./Maxim Integrated DS1374U-33+	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	5.5 V	2.97 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	5.5 V	1.3 V	Binary	175 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374C-3#T&R	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	3.3 V	2.7 V	0.295 in	16-SOIC	7.5 mm	Binary Counter	3.7 V	1.3 V	Binary	125 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374U-33	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	5.5 V	2.97 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	5.5 V	1.3 V	Binary	175 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374U-33+T&R	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	5.5 V	2.97 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	5.5 V	1.3 V	Binary	175 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374C-18#	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	1.89 V	1.71 V	0.295 in	16-SOIC	7.5 mm	Binary Counter	3.7 V	1.3 V	Binary	100 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374U-18	Binary	-40 °C	85 °C	Alarm NVRAM Square Wave Output Trickle-Charger Watchdog Timer	1.89 V	1.71 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX	3 mm	Binary Counter	3.7 V	1.3 V	Binary	100 µA	Surface Mount	2-Wire Serial I2C	3 B
Analog Devices Inc./Maxim Integrated DS1374U-3+T&R	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	3.3 V	2.7 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	3.7 V	1.3 V	Binary	125 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374U-18+	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	1.89 V	1.71 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	3.7 V	1.3 V	Binary	100 µA	Surface Mount	2-Wire Serial I2C
Analog Devices Inc./Maxim Integrated DS1374U-3+	Binary	-40 °C	85 °C	Alarm Square Wave Output Trickle-Charger Watchdog Timer	3.3 V	2.7 V	0.118 in	10-MSOP 10-TFSOP 10-uMAX/uSOP	3 mm	Binary Counter	3.7 V	1.3 V	Binary	125 µA	Surface Mount	2-Wire Serial I2C

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

DS1374U-33 | Datasheet