The M48T58Y-70PC1 is an 8 Kb x 8 non-volatile static RAM and real-time clock. The monolithic chip is available in two special packages to provide a highly integrated battery-backed memory and real-time clock solution.

• Integrated, ultra-low power SRAM, real-time clock, power-fail control circuit and battery

  
  

• BYTEWIDE™ RAM-like clock access

  
  

• BCD-coded year, month, day, date, hours, minutes, and seconds

  
  

• Frequency test output for real-time clock

  
  

• Automatic power-fail chip deselect and WRITE protection

  
  

• WRITE protect voltages (VPFD = power-fail deselect voltage):

  – M48T58: V_CC = 4.75 to 5.5 V;

  
  

• 4.5 V ≤ V_{PFD ≤} 4.75 V

  – M48T58Y: V_{CC =} 4.5 to 5.5 V;

  
  

• 4.2 V ≤ V_PFD ≤ 4.5 V

  
  

• Self-contained battery and crystal in the

  
  

• CAPHAT™ DIP package

  
  

• Packaging includes a 28-lead SOIC and NAPHAT® top (to be ordered separately)

  
  

• SOIC package provides a direct connection for Snapchat housing containing the battery and crystal

  
  

• Pin and function compatible with JEDEC standard 8 Kb x 8 SRAMs

  
  

• RoHS compliant

  – Lead-free second-level interconnect

  
  

  
  

  
  

  M48T58Y-70PC1 Applications

  
  

  • Industrial

    
    

    
    

    Factory Lead Time	25 Weeks
    Mount	Through Hole
    Mounting Type	Through Hole
    Package / Case	28-DIP Module (0.600, 15.24mm)
    Number of Pins	28
    Weight	4.190003g
    Operating Temperature	0°C~70°C
    Packaging	Tube
    Series	Timekeeper®
    JESD-609 Code	e3
    Feature	Leap Year
    Part Status	Active
    Moisture Sensitivity Level (MSL)	1 (Unlimited)
    Number of Terminations	28
    ECCN Code	EAR99
    Type	Clock/Calendar
    Terminal Finish	Matte Tin (Sn) - annealed
    HTS Code	8542.39.00.01
    Voltage - Supply	4.5V~5.5V
    Terminal Position	DUAL
    Supply Voltage	5V
    Terminal Pitch	2.54mm
    Frequency	70GHz
    Base Part Number	M48T58
    Pin Count	28
    Operating Supply Voltage	5V
    Interface	Parallel
    Memory Size	8kB
    Supply Current-Max	50mA
    Access Time	70 ns
    Logic Function	Clock
    RAM (words)	8184
    Time Format	HH:MM:SS (24 hr)
    Date Format	YY-MM-DD-dd
    Current - Timekeeping (Max)	3mA @ 4.5V~5.5V
    Time-Min	SECONDS
    Interrupt Capability	N
    Volatile	NO
    Height	8.89mm
    Length	39.88mm
    Width	18.34mm
    REACH SVHC	No SVHC
    Radiation Hardening	No
    RoHS Status	ROHS3 Compliant
    Lead Free	Lead Free