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M48T251Y Datasheet (PDF) - STMicroelectronics

M48T251Y Datasheet PDF - STMicroelectronics
Part # M48T251Y
Download  M48T251Y Download

File Size   366.54 Kbytes
Page   24 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM

M48T251Y Datasheet (PDF)

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M48T251Y Datasheet PDF - STMicroelectronics

Part # M48T251Y
Download  M48T251Y Click to download

File Size   366.54 Kbytes
Page   24 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM

M48T251Y Datasheet (HTML) - STMicroelectronics

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M48T251Y Product details

SUMMARY DESCRIPTION
The M48T251Y/V TIMEKEEPER® RAM is a 512Kbit x 8 non-volatile static RAM and real time clock organized as 524,288 words by 8 bits. The special DIP package provides a fully integrated battery back-up memory and real time clock solution. In the event of power instability or absence, a self-contained battery maintains the timekeeping operation and provides power for a CMOS static RAM. Control circuitry monitors VCC and invokes write protection to prevent data corruption in the memory and RTC.

FEATURES SUMMARY
■ 5.0V OR 3.3V OPERATING VOLTAGE
■ REAL TIME CLOCK KEEPS TRACK OF TENTHS/HUNDREDTHS OF SECONDS, SECONDS, MINUTES, HOURS, DAYS, DATE OF THE MONTH, MONTHS, AND YEARS
■ AUTOMATIC LEAP YEAR CORRECTION VALID UP TO THE YEAR 2100
■ AUTOMATIC SWITCH-OVER AND DESELECT CIRCUITRY
■ CHOICE OF POWER-FAIL DESELECT VOLTAGES: (VPFD = Power-fail Deselect Voltage):
   – M48T251Y: 4.25V ≤ VPFD ≤ 4.50V
   – M48T251V: 2.80V ≤ VPFD ≤ 2.97V
■ FULL 10% VCC OPERATING RANGE
■ OVER 10 YEARS’ DATA RETENTION IN THE ABSENCE OF POWER
■ WATCH FUNCTION IS TRANSPARENT TO RAM OPERATION
■ 512K x 8 NV SRAM DIRECTLY REPLACES VOLATILE STATIC RAM OR EEPROM




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About STMicroelectronics


STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.

The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.

Founded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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