What is Precharge?
Charging the bit lines to a set potential (half the supply voltage in DRAM, for example) before a read. In DRAM it also means closing the open row to prepare for activating the next one.
Field: DRAM
Precharge in the explanations
Accesses to the same row need only a new column address (the CAS latency), avoiding the precharge, activation and column access required to move to another row.
In DRAM, why is access time shorter when the same row (page…Precharge closes the current row and returns the bit lines to a midpoint voltage (VDD/2) before another row is accessed.
In DRAM access, what is the operation called that closes th…
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Related terms
CAS latency Bit line Sense amplifier 1T1C cell Bank DDR SDRAM DIMM ECC (error-correcting code) LPDDR Memory wall