M48T58Y-70PC1 Description

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.

M48T58Y-70PC1 Features

• 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