WINBOND Industrial Partner

Winbond W83977EG-AW Integrated I/O Controller Chipset | Provides a set of flexible I/O control functions to the system designer through a set of General Purpose I/O ports Simple Type: I/O Controller

W83977EF-AW/EG-AW is an evolving product from Winbond's most popular I/O chip W83877F --- which integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, configurable plug-and-play registers for the whole chip --- plus additional powerful features: ACPI, 8042 keyboard controller with PS/2 mouse support, 14 general purpose I/O ports, full 16-bit address decoding, OnNow keyboard Wake-Up, OnNow mouse Wake-Up. The disk drive adapter functions of W83977EF-AW/EG-AW include a floppy disk drive controller compatible with the industry standard 82077/ 765, data separator, write pre-compensation circuit, decode logic, data rate selection, clock generator, drive interface control logic, and interrupt and DMA logic. The wide range of functions integrated onto the W83977EF-AW greatly reduces the number of components required for interfacing with floppy disk drives. The W83977EF-AW/EG-AW supports four 360K, 720K, 1.2M, 1.44M, or 2.88M disk drives and data transfer rates of 250 Kb/s, 300 Kb/s, 500 Kb/s,1 Mb/s, and 2 Mb/s.

Download the datasheet (PDF)