Product Descriptions

The 82485 is a second-level cache controller designed to improve the performance of Intel 486Tm Microprocessor systems. One 82485 cache controller supports 64K or 128K bytes of second level cache memory that maps to the entire 4 Gigabytes of the intel 486 microprocessor address space. The controller is completely software transparent. One controller plus SRAMs provides a 64K or a 128K cache. External EPROM can be cached yet remain write protected. The 82485 is fuly compatible with the intel486 microprocessor. All intel 486 CPU bus cycles and timings are supported.

A complete, optional second level cache controller using the 82485 is available as the 485 Turbo cache Module from Intel(data sheet order number 240722).

i486,Intel 486 are trademarks of intel Corporation.

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