UM8272A Datasheet - UMC

UM8272A Floppy Disk Controller

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.

UM8272A 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 DM

UM8272A_UMC.pdf