Self-repairing memory and method of use

摘要

A self-repair unit includes a self-repair address comparator configured to receive address information from a control logic circuit, and to compare the received address with a faulty address in a memory array. The self-repair unit further includes a redundant engine configured to re-direct access to a redundancy address in a redundant memory if the received address matches the faulty address, wherein the redundancy address corresponds to the faulty address in the memory array. The self-repair unit further includes a cache stack counter configured to determine a number of pending repairs in a corrected data cache connected to the memory array and to the redundant memory.

主权项

1. A self-repair unit comprising:
a self-repair address comparator configured to receive address information from a control logic circuit, and to compare the received address with a faulty address in a memory array; a redundant engine configured to re-direct access to a redundancy address in a redundant memory if the received address matches the faulty address, wherein the redundancy address corresponds to the faulty address in the memory array; and a cache stack counter configured to determine a number of pending repairs in a corrected data cache connected to the memory array and to the redundant memory.