An antifuse latch device and method for performing a redundancy pretest
without the use of additional test circuitry is disclosed. Conventional
antifuse latch devices are designed such that a redundancy pretest cannot
be performed on the antifuse latch device once the antifuses are
programmed but rather requires additional circuitry to map the
appropriate address bits to test the redundant row or column. The present
invention adds a level translating inverter to a conventional antifuse
latch device, thus allowing the antifuse latch device to simulate an
unblown antifuse by isolating the antifuse from the latch.