Detail Mk4096 Timing Specifications

# Detail MK4096 Timing Specifications

Because row and column addresses now arrived sequentially rather than simultaneously, the MK4096's datasheet specified exact timing windows for how long each address phase had to be held stable.

Access time was measured from the assertion of row address strobe to valid data, and cycle time accounted for the full row-then-column sequence plus the array's refresh requirements.

These timing parameters, not just the bit count, were what a system designer actually had to design a memory controller around, and they set the pattern that RAS/CAS-based controllers would follow for years.

MK4096 TIMING BASICSAccess timemeasured from RAS assertion to valid output dataCycle timecovers row phase, column phase, and prechargeRefreshperiodic refresh still required, as with all dynamic memory

Diagram above: mk4096 timing basics.

WHY TIMING DISCIPLINE MATTEREDController designboards had to generate RAS and CAS in strict sequenceCompatibilitytiming specs let second-source parts interoperateLegacyRAS/CAS timing conventions outlived this specific part

Diagram above: why timing discipline mattered.

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