What is the Additional Feature ?

Name: RTC-72423A:2
Brand: Epson
SKU: RTC-72423A:2
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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Epson RTC-72423A:2

Part No.:: RTC-72423A:2

Manufacturer:: Epson

Package:: 24-SOIC (0.311, 7.90mm Width)

Datasheet:: RTC-72423A:2.pdf

Description:: IC RTC CLK/CALENDAR PAR 24-SOP

In Stock:: 3961

Quantity:: Add To Cart

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RTC-72423A:2 Specifications

Package/Case:
24-SOIC (0.311, 7.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Leap Year
MemorySize:
-
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
4.5V ~ 5.5V
Voltage-SupplyBattery:
-
Current-Timekeeping(Max):
5µA ~ 10µA @ 2V ~ 5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

RTC-72423A:2 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including RTC-72423A:2 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for RTC-72423A:2 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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RTC-72423A:2 information

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RTC-72423A:2 Typical application Circuitry

RTC-72423A 2

The RTC-72423A:2 is a type of Real-Time Clock (RTC) module, which is designed to keep accurate time and date. It finds applications in various fields such as embedded systems, consumer electronics, and data loggers, to name a few. This chip typically includes features such as a calendar, alarm functions, and interfaces for communication with microcontrollers or other parts of a system. Below, we explore an application scenario involving this RTC module, highlighting its connection and considerations in detail.

Application Scenario: Data Logger System

1.Integration with a Microcontroller: In a data logging application, the RTC-72423A:2 plays a crucial role in timestamping data. The RTC's I2C/SPI interface (depending on the specific module version) is connected to a microcontroller (MCU), allowing the MCU to retrieve the current date and time. Specifically, the SDA (Serial Data Line) and SCL (Serial Clock Line) of the RTC would be connected to corresponding SDA and SCL pins on the MCU, enabling two-way communication.

2.Power Supply Considerations: For reliable operation, the RTC-72423A:2 requires a stable power source. This is often achieved by connecting its VCC pin to a 3.3V or 5V supply (depending on the chip's voltage specifications) and the GND pin to the system ground. It's vital to ensure that the power supply is free of noise to avoid inaccurate timekeeping.

3.Backup Battery Connection: To maintain the clock and calendar functions even when the main power is off, a backup battery is connected to the VBAT pin. A diode can be used to prevent backflow current from the VCC to the battery, ensuring the RTC continues operating during power outages.

4.Pull-up Resistors on I2C Lines: When integrating the RTC-72423A:2 into an I2C bus, pull-up resistors are essential on both the SDA and SCL lines to maintain signal integrity. Typically, 4.7kΩ resistors are used, connecting each line to the positive power supply. This setup is crucial for reliable data transmission between the RTC and the MCU.

5.Alarm Function Wiring: For applications that utilize the RTC's alarm function, the alarm output pin (usually labeled as AF or similar) can be connected to an interrupt pin on the MCU. This enables the MCU to perform specific actions when the alarm condition is met, such as logging a timestamped event or waking up from a low-power state.

6.Considerations in Circuit Design: When designing a circuit with the RTC-72423A:2, it's important to consider factors such as power supply noise, the accuracy of the backup battery voltage, and potential interference on the I2C lines. The choice of backup battery (e.g., coin cell) should ensure long-term reliability, and the layout should minimize noise introduction to the RTC. Additionally, ensuring proper pull-up resistor values and checking for correct communication settings are crucial for the accurate operation of the RTC module within the system.

In summary, the RTC-72423A:2 is a versatile component for adding timekeeping functions to a variety of applications. By carefully considering connection details and potential design pitfalls, one can effectively integrate this RTC module into a system, enhancing its capabilities with accurate time and date tracking.

RTC-72423A:2 FAQ

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6. What is the process for return or replacement of RTC-72423A:2?

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 RTC-72423A:2 we delivered, we will accept the replacement or return of the RTC-72423A:2 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 RTC-72423A:2.

(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