UM82C231 Search Results

82C231

Abstract: Unicorn Microelectronics um82c232 80286 82c206 82C206 UM82C231 M16I45 82c232 clk21 refresh logic
Contextual Info: UNICORN MICROELECTRONICS S4E D • ^570700 000GÖ17 4 UM82C231 System/Memory Controller 1. General Decription The UM82C231 is a system/memory controller. It performs the CPU interface, AT system bus interface and memory interface functions. 2. Features • CPU interface and bus control.

Contextual Info: UNITED MICROELECTRONICS 3DE D • ^355652 00a0157 □ ■ T ~ B .2 - 3 3 - 0 5 ~ U M 8 2C 23 1 System/Memory Controller Features ■ ■ ■ ■ ■ CPU interface and bus control PC/AT bus control Clock generation Numerical processor 80287 interface Refresh and DMA logie

UM82C206

Abstract: UM82C231 V 7271 U bios phoenix
Contextual Info: UNITED MICROELECTRONICS 3QE D ^3B5&55 pooaisb q • ~ r - 9-Ò U M 8 2 C 2 3 0 Series 286 PC/AT Chip Set\ Features Pin Configurations ■ Fully PC/AT-Compatible for 10MHz and 12MHz systems ■ Guaranteed zero wait state for 80 ns DRAMs at 12MHz and one wait state for 120 ns DRAMs at 12.5 MHz

AADS

Contextual Info: UNITED MICROELECTRONICS 3QE D ^3B5&55 p o o a is b q • ~ r - 9-Ò U M 8 2 C 2 3 0 Series 286 PC/AT Chip Set\ Features Pin Configurations ■ Fully PC/AT-Compatible for 10MHz and 12MHz systems ■ Guaranteed zero wait state for 80 ns DRAMs at 12MHz and one wait state for 120 ns DRAMs at 12.5 MHz