Realistic Built-In Self-Test for Static RAMs

  • Authors:
  • Rob Dekker;Frans Beenker;Loek Thijssen

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Design & Test
  • Year:
  • 1989

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Abstract

The authors present the specification and design of a self-test mechanism for static random-access memories (RAMs). The test algorithm provides excellent fault detection, and its structure is independent of address and data scrambling. The self-test machine generates data backgrounds on chip and is therefore suitable for both bit-oriented and word-oriented SRAMs. It is also suitable for both embedded SRAMs and stand-alone SRAMs, and adapts to boundary-scan environment. Because of the regular and symmetric structure of the test algorithm, the silicon overhead is only 3% for a 16 K synchronous SRAM.