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DS1338Z-18+

Name: DS1338Z-18+
Rating: 4.7 (12 reviews)

IC RTC CLK/CALENDAR I2C 8-SOIC

製造商
製造商。部分 #DS1338Z-18+
包 8-SOIC (0.154, 3.90mm Width)
資料表 DS1338Z-18+ DataSheet
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規格

Supplier	Rochester Electronics, LLC,Analog Devices Inc./Maxim Integrated
Package	Tube,Tube
ProductStatus	Obsolete
Type	Clock/Calendar
Features	Leap Year, NVSRAM, Square Wave Output
MemorySize	56B
TimeFormat	HH:MM:SS (12/24 hr)
DateFormat	YY-MM-DD-dd
Interface	I²C, 2-Wire Serial
Voltage-Supply	1.71V ~ 5.5V
Voltage-SupplyBattery	1.3V ~ 3.7V
Current-Timekeeping(Max)	100µA @ 1.89V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概述

Description

The DS1338Z-18+ is a real-time clock (RTC) integrated circuit developed by Maxim Integrated (now part of Analog Devices). It is designed to keep accurate time and date information, even during power outages, thanks to its low power consumption and battery backup capability. The device communicates via I2C interface, allowing easy integration with microcontrollers.
Key features include:
- Timekeeping Accuracy: The DS1338Z-18+ offers precise timekeeping with an accuracy of ±2 minutes per month at 25°C.
- Battery Backup: It features a battery input, enabling timekeeping during power failures.
- Programmable Output: The device can generate alarm signals and square wave outputs.
- Temperature Compensation: It operates correctly across a wide temperature range, ensuring reliability in various environments.
With its small package size (TSSOP), the DS1338Z-18+ is suitable for applications in consumer electronics, industrial equipment, and automotive systems, providing a compact solution for timekeeping needs.

Features

The DS1338Z-18+ is a real-time clock (RTC) device from Maxim Integrated. Key features include:
1. Real-Time Clock Functionality: Keeps accurate time and date, including leap years.
2. I²C Interface: Simplifies communication with microcontrollers, supports speeds up to 400 kHz.
3. Battery Backup: Maintains timekeeping during power failures through an external battery backup.
4. Low Power Consumption: Operates on a low supply current, making it suitable for battery-powered applications.
5. Temperature Compensated: Ensures accuracy across a wide temperature range.
6. Programmable Alarm: Supports alarms for specific time conditions.
7. Square Wave Output: Provides a square wave output for clock synchronization.
8. Wide Supply Voltage Range: Operates from 1.3V to 5.5V, compatible with various systems.
This device is ideal for applications requiring precise timekeeping, such as in consumer electronics, industrial automation, and communication devices.

Package

The DS1338Z-18+ comes in a 8-pin NSOIC (Narrow Small Outline Integrated Circuit) package type.

Pinout

The DS1338Z-18+ is a real-time clock (RTC) device with a total of 8 pins. Here are the pin functions:
1. VCC (Pin 1): Supply voltage.
2. GND (Pin 2): Ground.
3. SCL (Pin 3): Serial Clock Line for I²C communication.
4. SDA (Pin 4): Serial Data Line for I²C communication.
5. INT (Pin 5): Interrupt output to signal event occurrences.
6. SQW (Pin 6): Square Wave output or alarm signal.
7. 32K (Pin 7): 32 kHz output for clock or timing applications.
8. NC (Pin 8): No Connect; not used.
The DS1338Z-18+ operates over a voltage range of 2.5V to 5.5V and includes features like a battery backup option, making it useful for maintaining timekeeping during power outages.

Manufacturer

The DS1338Z-18+ is manufactured by Maxim Integrated, which is a semiconductor company that specializes in designing and manufacturing analog and mixed-signal integrated circuits. Maxim Integrated focuses on providing innovative solutions for various applications, including automotive, industrial, communications, and consumer electronics. The company is known for its expertise in power management, data conversion, signal processing, and interface products. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and capabilities in the semiconductor industry.

Application

The DS1338Z-18+ is a real-time clock (RTC) with an I2C interface, commonly used in battery-powered devices, embedded systems, and automotive applications. It provides timekeeping for data loggers, consumer electronics, smart meters, and industrial automation equipment. Its low power consumption and precision make it suitable for applications requiring accurate timekeeping and timestamping in systems like IoT devices and wearable technology.

Equivalent

The DS1338Z-18+ is a real-time clock (RTC) with a temperature-compensated oscillator. Equivalent products include the MCP7940M, PCF8523, and RTC8564. These alternatives offer similar functionalities like timekeeping, battery backup, and I2C interface, but specifications may vary, so it's essential to review datasheets for specific requirements.