---
title: M48T59Y-70PC1
copyright: 2022 Nick Bowler
license: cc-by-sa-4.0
description: |
  <p>The <abbr title="Non-Volatile Random Access Memory">NVRAM</abbr> module
  used in my Sun Ultra 60 workstation.  This combines a normal memory with a
  real-time clock and an internal lithium primary cell to maintain everything.
  However, the internal cell is long dead so this chip is dead too.</p>