UM8329BT Datasheet | UMC

Features - Digital date separator Performs plete data separation function for floppy disk drives Separates FM and MFM encoded data No critical adjustments necessary 5%" and 8" patible - Variable write prepensation - Internal crystal osci l Iator circu it - Track-selectable write prepensation - Retriggerable head-load timer - patible with the FDC 179X, 8272A, and other standard floppy disk controllers - SAN-III MOS N-CHANNEL TECHNOLOGY - Single + 5 volt supply - TTL patible General Description The UM8329/B is an MOS integrated circuit designed to plement either the 179X or 8272A (765A) type of floppy disk controller chip. It incorporates a digital data separator, write prepensation logic, and a head-load timer in one O.3-inch wide 20-pin package. A single pin will / configure the chip to work with either the 179X or 8272A type of controller. The UM8329/B provides a number of different dynamically selected...