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PC87311 - Floppy Disk Controller

Download the PC87311 datasheet PDF. This datasheet also covers the PC8 variant, as both devices belong to the same floppy disk controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The PC87311A 12 incorporates a floppy disk controller (FDC) two full function UARTs a bidirectional parallel port and IDE interface control logic in one chip The PC87311A includes standard AT XT address decoding for on-chip functions and a Configuration Register offering a single chip solution to th

Key Features

  • Y Y Y Y Y Y Y 100% compatible with IBM PC XT and AT architectures (PC87311A) or ISA EISA and Micro Channel architectures (PC87312) FDC Software compatible with the DP8473 the 765A and the N82077 16-byte FIFO (default disabled) Burst and Non-Burst modes Perpendicular Recording drive support High performance internal analog data separator (no external filter components required) Low power CMOS with power down mode UARTs Software compatible with the INS8250N-B and the NS16450 (PC87311A) or P.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PC8-7311.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
PC87311A Floppy Disk Controller
PC87310 Dual UART
PC87312 Floppy Disk Controller
PC87317VUL Plug and Play Compatible
PC87303VUL Floppy Disk Controller / Keyboard Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
PC87311A PC87312 (SuperI O II III) Floppy Disk Controller with Dual UARTs Parallel Port and IDE Interface October 1993 PC87311A PC87312 (SuperI O TM II III) Floppy Disk Controller with Dual UARTs Parallel Port and IDE Interface General Description The PC87311A 12 incorporates a floppy disk controller (FDC) two full function UARTs a bidirectional parallel port and IDE interface control logic in one chip The PC87311A includes standard AT XT address decoding for on-chip functions and a Configuration Register offering a single chip solution to the most commonly used IBM PC PC-XT and PC-AT peripherals The PC87312 includes standard AT address decoding for on-chip functions and a Configuration Register set offering a single chip solution to the most commonly used ISA EISA and Micro Channel peri