Description
The HT6551 super Multi I/O chip, is an advanced CMOS single chip controller offering the complete I/O solutions for the IBM AT environments.
chip function and four configuration registers in one chip.
reliability CMOS technology.
Features
- 100% compatible to IBM PC AT/XT.
- Fully IBM.
- BIOS compatible floppy disk
controller.
- 48mA floppy drive interface buffers.
- Support two floppy drives with capability
of supporting up to four drives with an external decoder.
- Support 360K/720K/1.2M/1.44M/2.88M formats.
- Support 250Kb/s, 300Kb/s, 500Kb/s, 1Mb/s data rate.
- Digital data separator eliminates critical analog adjustments.
- Two 16550 compatible UARTs.
- Ind.
HT6551-HoltekMicroelectronics.pdf
