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UM8272A-4 Datasheet Floppy Disk Controller

Manufacturer: UMC

Overview: (l)UMC UM8272A / UM8272A'-4 : : : : : : : : : : : : : Floppy Disk.

Download the UM8272A-4 datasheet PDF. This datasheet also includes the UM8272A variant, as both parts are published together in a single manufacturer document.

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Datasheet Details

Part number UM8272A-4
Manufacturer UMC
File Size 1.01 MB
Description Floppy Disk Controller
Download UM8272A-4 Download (PDF)

General Description

The UM8272A is an LSI Floppy DIsk Controller (FDC) Chip, which contains the circuitry and control functions for interfacing a processor to 4 Floppy Disk Drives, It is capable of supporting either IBM 3740 single density format (F rvi), or IBM System 34 Double Density fo rmat (MFM) including double sided recording, The UM8272A Pin Configuration Block Diagram RESET RD W

Key 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/ UM82.

UM8272A-4 Distributor & Price

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