DS1302SN+T&R

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DS1302SN+T&R

IC RTC CLK/CALENDAR SER 8SOIC

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仕様

Part Status Active
DigiKey Programmable Not Verified
Type Clock/Calendar
Features Leap Year, NVSRAM, Trickle-Charger
Memory Size 31B
Time Format HH:MM:SS (12/24 hr)
Date Format YY-MM-DD-dd
Interface 3-Wire Serial
Voltage - Supply 2V ~ 5.5V
Voltage - Supply, Battery 2V ~ 5.5V
Current - Timekeeping (Max) 0.3µA ~ 1µA @ 2V ~ 5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.209", 5.30mm Width)
Supplier Device Package 8-SOIC
Base Product Number DS1302

概要

Description

The DS1302SN+T&R is a real-time clock (RTC) integrated circuit designed by Maxim Integrated. It provides accurate timekeeping and date tracking for various electronic applications. This chip features a low-power design, making it suitable for battery-powered devices. It communicates with microcontrollers via a simple serial interface, allowing easy integration into embedded systems.
Key features include:
- Timekeeping: Maintains time and date with high accuracy.
- Battery Backup: Supports a backup battery to retain data during power outages.
- Low Power Consumption: Consumes minimal power in both active and standby modes.
- Programmable Square Wave Output: Can generate a frequency output for timing purposes.
- I2C Compatibility: Compatible with I2C communication protocols for seamless integration.
The DS1302SN+T&R is commonly used in applications such as digital clocks, timers, and other time-sensitive systems.

Features

The DS1302SN+T&R is a real-time clock (RTC) with the following key features:
1. Timekeeping: It tracks time with seconds, minutes, hours, day, month, and year, including leap year adjustments.
2. Interface: Communicates via a simple serial interface (SPI), enabling easy integration with microcontrollers.
3. Battery Backup: Operates with a backup battery, ensuring timekeeping continues during power outages.
4. Low Power Consumption: Designed for low power usage, making it suitable for battery-powered applications.
5. Programmable Square Wave Output: Provides a square wave output with different frequency options for various applications.
6. Alarm Functionality: Features programmable alarms for time-based events.
7. Temperature Compensation: Maintains accurate timekeeping over a range of temperatures.
8. Compact Package: Available in a small, surface-mount package, facilitating space-efficient designs.
These features make the DS1302SN+T&R a versatile choice for applications requiring precise timekeeping.

Package

The DS1302SN+T&R is packaged in a 16-pin DIP (Dual In-line Package) configuration. This type of package is designed for through-hole mounting on circuit boards.

Pinout

The DS1302SN+T&R is a real-time clock (RTC) integrated circuit with a total of 8 pins. The pin functions are as follows:
1. VCC: Power supply (typically +3V to +5.5V).
2. GND: Ground reference.
3. SCLK: Serial clock input for data transfer.
4. IO: Bidirectional data input/output for communication.
5. CE: Chip enable input for activating the device.
6. RST: Reset input to initialize the RTC.
7. X1: Connection for a 32.768 kHz crystal oscillator.
8. X2: Connection for the other terminal of the crystal oscillator.
The DS1302 provides timekeeping functions with a battery backup, allowing it to maintain time during power outages. It communicates with microcontrollers via a serial interface.

Manufacturer

The DS1302SN+T&R 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 is known for its innovative solutions in areas such as power management, signal processing, and interface technologies. Their products are widely used in various applications, including consumer electronics, automotive systems, industrial equipment, and telecommunications. The DS1302SN+T&R specifically is a real-time clock with serial interface, commonly utilized in electronic devices to keep track of time even when powered off.

Application

The DS1302SN+T&R is a real-time clock (RTC) integrated circuit commonly used in applications such as digital clocks, timers, and scheduling systems. It is suitable for battery-powered devices due to its low power consumption and includes features like battery switchover and alarm functions. Typical application areas include consumer electronics, automotive systems, industrial automation, and data logging solutions where accurate timekeeping is essential.

Equivalent

Equivalent products to the DS1302SN+T&R include the DS1307, DS1302, and MCP7940M. Each of these real-time clock (RTC) chips offers similar functionalities, such as timekeeping and battery backup, but may differ in features like communication protocols and power consumption. Always check specific data sheets for detailed specifications and compatibility.

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出荷料参照（DHL/FedEx）:

DHL の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル（0.5kg）の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル（0.1kg）で、推定配送時間は5〜20営業日です。

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