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M48T128V

Features: ` INTEGRATED, ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY, AND CRYSTAL` BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, AND SECONDS` AUTOMATIC POWER-FAIL CHIP DESELECT AND WRITE PROTECTION` WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): M48...

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SeekIC No. : 004405353 Detail

M48T128V: Features: ` INTEGRATED, ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY, AND CRYSTAL` BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, AND SECONDS` AUTOMATIC POWER-FAIL C...

M48T128V Data Sheet

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Part Number:
M48T128V
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

` INTEGRATED, ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY, AND CRYSTAL
` BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, AND SECONDS
` AUTOMATIC POWER-FAIL CHIP DESELECT AND WRITE PROTECTION
` WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage):
    M48T128Y: VCC = 4.5 to 5.5V
                       4.1V VPFD 4.5V
    M48T128V*: VCC = 3.0 to 3.6V
                        2.7V VPFD 3.0V
` CONVENTIONAL SRAM OPERATION; UNLIMITED WRITE CYCLES
` SOFTWARE CONTROLLED CLOCK
    CALIBRATION FOR HIGH ACCURACY APPLICATIONS
` 10 YEARS OF DATA RETENTION AND
    CLOCK OPERATION IN THE ABSENCE OF POWER
` SELF-CONTAINED BATTERY AND CRYSTAL IN THE DIP PACKAGE
` PIN AND FUNCTION COMPATIBLE WITH JEDEC STANDARD 128K x 8 SRAMs 


Pinout

Connection Diagram


Specifications

Symbol Parameter
Value
Unit
TA Ambient Operating Temperature
0 to 70
TSTG Storage Temperature (VCC Off, Oscillator Off)
40 to 85
TSLD (2) Lead Solder Temperature for 10 seconds
260
VIO Input or Output Voltages
0.3 to 7
V
VCC Supply Voltage M48T128Y
0.3 to 7
V
M48T128V 0.3 to 4.6
V
IO Output Current
20
mA
PD Power Dissipation
1
W

Note: 1. Soldering temperature not to exceed 260°C for 10 seconds (total thermal budget not to exceed 150°C for longer than 30 seconds). No preheat above 150°C, or direct exposure to IR reflow (or IR preheat) allowed, to avoid damaging the Lithium battery.
CAUTION: Negative undershoots below 0.3V are not allowed on any pin while in the Battery Back-up mode.


Description

The M48T128Y/V TIMEKEEPER® RAM is a 128Kb x 8 non-volatile static RAM and real time clock. The special DIP package provides a fully integrated battery back-up memory and real time clock solution. The M48T128Y/V directly replaces industry standard 128Kb x 8 SRAM.

The M48T128Y/V also provides the non-volatility of Flash without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed. The 32-pin, 600mil DIP Hybrid houses a controller chip, SRAM, quartz crystal, and a long life lithium button cell in a single package.




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