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Name: DS1501YS
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1501YS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated DS1501YS

Part No.:: DS1501YS

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 28-SOIC (0.295, 7.50mm Width)

Datasheet:: DS1501YS.pdf

Description:: IC RTC CLK/CALENDAR PAR 28-SOIC

In Stock:: 3171

Quantity:: Add To Cart

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DS1501YS Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K
MemorySize:
256B
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
2.5V ~ 3.7V
Current-Timekeeping(Max):
5mA @ 4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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DS1501YS information

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Basic introduction and simple engineering application of DS1501YS

DS1501YS is a real-time clock (RTC) chip designed by Maxim Integrated, widely used in electronic projects requiring accurate timekeeping functionality. It incorporates a complete BCD clock/calendar with alarm and a power monitor to detect power failures.

Application Scenario:

In various electronic applications, DS1501YS can serve as a reliable timekeeping component, such as in data loggers, digital clocks, and timing-based control systems.

Circuit Design:

To implement a simple digital clock using DS1501YS, follow these steps:

1. DS1501YS Connection:

Connect DS1501YS to the microcontroller or single-board computer (SBC) through the appropriate communication interface, such as SPI or I2C. Ensure proper wiring of the data, clock, and control lines.

2. Power Supply:

Provide a stable power supply to DS1501YS to ensure reliable operation. Use voltage regulators and decoupling capacitors to minimize voltage fluctuations and noise.

3. Crystal Oscillator:

Connect an external crystal oscillator or a ceramic resonator to DS1501YS to generate the clock signal. The accuracy of the clock depends on the frequency stability of the oscillator.

4. User Interface:

Integrate a user interface, such as an LCD display or LED matrix, to visualize the current time and alarm settings. Utilize GPIO pins of the microcontroller to interface with the display components.

5. Alarm Functionality:

Configure the alarm feature of DS1501YS to trigger specific actions at predetermined times. This could include activating relays, sounding buzzers, or displaying messages on the user interface.

Experiment:

Let's conduct a simple experiment to demonstrate the functionality of DS1501YS in a digital clock setup.

Experiment Steps:

Step 1: Connect DS1501YS to an Arduino Uno board using the I2C interface. Wire the SDA pin of DS1501YS to A4 on the Arduino and SCL to A5.

Step 2: Connect a 32.768 kHz crystal oscillator between pins X1 and X2 of DS1501YS to ensure accurate timekeeping.

Step 3: Write a simple Arduino sketch to initialize DS1501YS, read the current time, and display it on an LCD screen connected to the Arduino.

Step 4: Set an alarm time using the Arduino sketch and configure DS1501YS to trigger an action when the alarm goes off, such as blinking an LED.

Step 5: Test the digital clock setup by observing the time displayed on the LCD screen and verifying that the alarm function activates at the specified time.

Considerations:

When working with DS1501YS, consider the following:

- Power Backup: Implement a backup power source, such as a coin cell battery, to maintain timekeeping functionality during power outages.

- Accuracy: Ensure that the crystal oscillator used with DS1501YS has low frequency drift and provides accurate timekeeping over long periods.

- Interfacing: Familiarize yourself with the communication protocol (I2C or SPI) and register map of DS1501YS for proper integration with the microcontroller or SBC.

- Error Handling: Implement error handling routines in the firmware to handle communication errors or clock/calendar data corruption.

- Test and Calibration: Periodically test and calibrate the digital clock system to ensure accurate timekeeping performance over time.

DS1501YS FAQ

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3. Are the DS1501YS price and inventory displayed accurate?

The price and inventory of DS1501YS fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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6. What is the process for return or replacement of DS1501YS?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS1501YS we delivered, we will accept the replacement or return of the DS1501YS only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DS1501YS.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations