A RAM Primer
Sync SRAM (synchronous burst SRAM)
Like SDRAM, Sync SRAM is synchronized with the system clock, so it's faster than the Async SRAM commonly used for L2 caches, with speeds of about 8.5 ns. Unfortunately, Sync SRAM isn't being produced in sufficient quantities to drive its cost down, so it seems destined for a relatively short life. That's especially true because it loses the ability to synchronize at bus speeds higher than 66 MHz. For the new breed of machines, therefore, let's welcome PB SRAM.
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Published as Tutor in the 10/21/97 issue of PC Magazine.
