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Name: M48T212V-85MH1F
Brand: STMicroelectronics
SKU: M48T212V-85MH1F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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STMicroelectronics M48T212V-85MH1F

Part No.:: M48T212V-85MH1F

Manufacturer:: STMicroelectronics

Package:: 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT

Datasheet:: M48T212V-85MH1F.pdf

Description:: IC RTC CLK/CALENDAR PAR 44-SOH

In Stock:: 2034

Quantity:: Add To Cart

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M48T212V-85MH1F Specifications

Package/Case:
44-BSOP (0.337, 8.56mm Width) requires SNAPHAT
Packaging:
Tape & Reel (TR),Cut Tape (CT)
Series:
Timekeeper®
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Leap Year, Watchdog Timer, Y2K
MemorySize:
-
TimeFormat:
HH:MM:SS (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
3V ~ 3.6V
Voltage-SupplyBattery:
3V
Current-Timekeeping(Max):
2mA @ 3V ~ 3.6V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

M48T212V-85MH1F this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including M48T212V-85MH1F 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 M48T212V-85MH1F 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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M48T212V-85MH1F information

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Basic introduction and simple engineering application of M48T212V-85MH1F

M48T212V-85MH1F is a non-volatile static RAM with a real-time clock, commonly used in embedded systems for timekeeping and data storage applications. It features a 512 Kbit (64 Kbyte) electrically erasable programmable read-only memory (EEPROM), a 64 Kbit (8 Kbyte) static RAM (SRAM), and a real-time clock (RTC) with a calendar and an alarm. This integrated device eliminates the need for separate components for timekeeping and data storage, making it a cost-effective and space-saving solution for various projects.

Application Scenario:

In a simple access control system, M48T212V-85MH1F can be utilized to store access credentials and keep track of entry and exit times.

Circuit Design:

To design an access control system using M48T212V-85MH1F, follow these steps:

1. Integration of M48T212V-85MH1F:

Connect M48T212V-85MH1F to the microcontroller or host system using the appropriate communication interface, such as I2C or SPI. Ensure proper power supply connections and decoupling capacitors for stable operation.

2. Data Storage:

Store access credentials, such as user IDs and passwords, in the EEPROM of M48T212V-85MH1F. Use the SRAM portion for temporary data storage, such as access logs and system configuration settings.

3. Real-Time Clock Functionality:

Utilize the real-time clock (RTC) of M48T212V-85MH1F to keep track of current time and date. Set up alarms for scheduled tasks or events, such as opening and closing times for the access control system.

4. Access Control Logic:

Implement access control logic in the microcontroller firmware to validate user credentials stored in M48T212V-85MH1F EEPROM. Compare input credentials with stored data and grant or deny access accordingly.

5. User Interface:

Integrate user interface components, such as keypads or biometric scanners, for user authentication. Display system status and access information using LEDs or an LCD display.

Considerations:

When designing the access control system, consider the following:

- Security: Implement encryption algorithms and secure communication protocols to protect access credentials and system data stored in M48T212V-85MH1F.

- Backup Power: Provide backup power, such as a battery or supercapacitor, to maintain M48T212V-85MH1F RTC and data retention during power outages.

- Access Log Management: Develop firmware routines to manage access logs stored in M48T212V-85MH1F and ensure efficient retrieval and analysis of entry and exit records.

- System Integration: Integrate the access control system with other subsystems, such as door locks and alarms, for comprehensive security management.

- Compliance: Ensure compliance with relevant regulatory standards, such as data privacy regulations, when implementing the access control system in commercial or residential environments.

M48T212V-85MH1F FAQ

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3. Are the M48T212V-85MH1F price and inventory displayed accurate?

The price and inventory of M48T212V-85MH1F 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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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of M48T212V-85MH1F?

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 M48T212V-85MH1F we delivered, we will accept the replacement or return of the M48T212V-85MH1F 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 M48T212V-85MH1F.

(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