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DS1337C

Name: DS1337C
Rating: 4.7 (12 reviews)

IC RTC CLK/CALENDAR I2C 16SOIC

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仕様

Part Status	Obsolete
DigiKey Programmable	Not Verified
Type	Clock/Calendar
Features	Alarm, Leap Year, Square Wave Output
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Interface	I2C, 2-Wire Serial
Voltage - Supply	1.8V ~ 5.5V
Current - Timekeeping (Max)	0.6µA @ 1.3V ~ 1.8V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package	16-SOIC
Base Product Number	DS1337

概要

Description

The DS1337C is a real-time clock (RTC) integrated circuit designed for precise timekeeping in various applications. It features a low-power design, making it ideal for battery-operated devices. The DS1337C communicates via I2C interface, allowing easy integration with microcontrollers.
Key features include an accuracy of ±2 minutes per year, a built-in oscillator, and a temperature-compensated crystal. It supports 12/24-hour time formats and can maintain time during power loss due to its onboard battery backup. The device also includes alarms and a square-wave output, useful for generating timing signals.
The DS1337C is commonly used in applications such as consumer electronics, industrial equipment, and telecommunications, where accurate timekeeping is essential. Its low power consumption and compact form factor make it suitable for a wide range of embedded systems.

Features

The DS1337C is a real-time clock (RTC) IC that offers several key features:
1. Timekeeping: Maintains accurate timekeeping with a clock accuracy of ±3 minutes per year.
2. Power Supply: Operates from a supply voltage of 2.5V to 5.5V, making it versatile for various applications.
3. Battery Backup: Includes a battery backup input, ensuring timekeeping during power outages.
4. I²C Interface: Supports I²C communication for easy interfacing with microcontrollers.
5. Alarms: Features two programmable alarm functions with interrupt output for event-driven applications.
6. Temperature Compensation: Offers temperature-compensated oscillation, improving accuracy across temperature variations.
7. Leap Year Handling: Automatically accounts for leap years, simplifying date management.
8. 32 kHz Output: Provides a 32.768 kHz output for clock generation in other circuits.
These features make the DS1337C suitable for various applications, including embedded systems, consumer electronics, and industrial equipment.

Package

The DS1337C is available in various package types, including a 16-pin SOIC (Small Outline Integrated Circuit) and a 16-pin TSSOP (Thin Shrink Small Outline Package). Both options are designed for surface mounting and provide flexibility in design implementations.

Pinout

The DS1337C is a real-time clock (RTC) with a total of 8 pins. Here’s a brief overview of its pin count and functions:
1. VCC (Pin 1): Power supply (2.0V to 5.5V).
2. GND (Pin 2): Ground reference.
3. SCL (Pin 3): I2C clock input for serial communication.
4. SDA (Pin 4): I2C data input/output for serial communication.
5. SQW/INT (Pin 5): Square wave output or interrupt output.
6. OUT (Pin 6): Output for the square wave signal.
7. 32K (Pin 7): 32 kHz output for timing applications.
8. VBACKUP (Pin 8): Backup battery input for maintaining time during power loss.
The DS1337C provides accurate timekeeping with battery backup capabilities and supports I2C interface for easy communication with microcontrollers.

Manufacturer

The DS1337C is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and manufacturing analog and mixed-signal integrated circuits. The company focuses on providing innovative solutions for various applications, including power management, signal processing, and communications. Their products are widely used across multiple industries, including consumer electronics, automotive, industrial, and medical devices.

Application

The DS1337C is a real-time clock (RTC) designed for various applications, including battery-powered devices, consumer electronics, industrial equipment, and telecommunications. It is commonly used in systems requiring accurate timekeeping, such as data loggers, alarm systems, and automotive applications. Its low power consumption and temperature compensation make it suitable for portable devices and IoT applications, enhancing performance and reliability in time-sensitive operations.

Equivalent

The DS1337C chip is a real-time clock (RTC) with a battery backup. Equivalent products include:
1. MCP7940N - Microchip's RTC with EEPROM.
2. RTC-8564 - NXP Semiconductor's RTC with I2C interface.
3. PCF8523 - NXP's low-power RTC with I2C.
4. DS3231 - Maxim Integrated's highly accurate RTC with temperature compensation.
Always check specific features and compatibility for your application.