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UM8272A

UMC
Part Number UM8272A
Manufacturer UMC
Description Floppy Disk Controller
Published May 18, 2006
Detailed Description (l)UMC UM8272A / UM8272A'-4 : : : : : : : : : : : : : Floppy Disk Controller Features • IBM Compatible in Both Singl...
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UM8272A
UM8272A

Overview
(l)UMC UM8272A / UM8272A'-4 : : : : : : : : : : : : : Floppy Disk Controller Features • IBM Compatible in Both Single and Double Density Recording Formats • Programmable Data Record Lengths: 128, 256, 512, or 1024 Bytes/Sector • Multi-Sector and Multi-Track Transfer Capability • Drives Up to 4 Floppy or Mini-Floppy Disks • Data Transfers in DMA or Non-DMA Mode • Parallel Seek Operations on Up to Four Drives • Compatible with all intel and Most Other Mlcropro- cessors • SIngle-Phase 8MHz/4MHz Clock for UM8272A/ UM8272A-4 respectively • Single + 5 Volt Power Supply (± 1COAl) General Description The UM8272A is an LSI Floppy DIsk Controller (FDC) Chip, which contains the circuitry and con...


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