UM82C481 Datasheet (UMC) - MEMORY CONTROLLER

UM82C481, MEMORY CONTROLLER

The UM82C481, Integrated Memory Controller (IMC), is part of UMC's high performance 80386/ 80486 PC/AT chip set.

It contains sophisticated direct-mapped cache controller with write back operation, and fast page mode DRAM controller.

Incorporated with UM82C482, Integrated System Controller (SC), and

UM82C481 Features

* Built-in cache controller: - Direct-mapped organization with write-back operation - Cache controller can be enabled/disabled - 0 wait state for cache read/write hit if CPU is 80386 - Programmable 80486 read hit wait state for burst mode - Programmable 80486 write hit wait state - Programmable